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UNITED STATES
SECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549



FORM 10-K

(Mark One)ý

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934for The Fiscal Year Ended December 31, 2010o

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934for the transition period
from                       to


Commission File Number 001-34800



ECA Marcellus Trust I(Exact name of registrant as specified in its charter)

Delaware(State or other jurisdiction of
incorporation or organization)

27-6522024(I.R.S. Employer
Identification No.)The Bank of New York Mellon
Trust Company, N.A.,
Trustee
Global Corporate Trust
919 Congress Avenue
Austin, Texas(Address of principal executive offices)

78701(Zip Code)


Registrant's
telephone number, including area code:(800) 852-1422

Securities
registered pursuant to Section 12(b) of the Act:

Title of Each Class

Name of Each Exchange on which RegisteredUnits of Beneficial Interest

New York Stock Exchange


Securities
registered pursuant to Section 12(g) of the Act:

None(Title of class)

Indicate
by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities
Act. Yes o    No ý.

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the
Act. Yes o    No ý.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act
of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the
past 90 days. Yes ý    No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to
be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that
the registrant was required to submit and post such files). Yes o    No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not
be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to
this Form 10-K. ý

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting
company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer o

Accelerated filer o

Non-accelerated filer ý (Do not check if a
smaller reporting company)

Smaller reporting company o


Indicate
by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the
Act). Yes o    No ý

The aggregate market value of Units of Beneficial Interest in ECA Marcellus Trust I held by non-affiliates on June 30, 2010, the last business
day of the registrant's most recently completed second fiscal quarter, is not applicable as the registrant's equity was not traded as of June 30, 2010.

As
of February 25, 2011, 13,203,750 Common Units and 4,401,250 Subordinated Units of Beneficial Interest in ECA Marcellus Trust I were outstanding.

Documents Incorporated By Reference: None



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Forward-Looking Statements

3Glossary of Certain Oil and Natural Gas Terms

4PART IItem 1.

Business

7Item 1A.

Risk Factors

23Item 1B.

Unresolved Staff Comments

43Item 2.

Properties

43Item 3.

Legal Proceedings

53Item 4.

Removed and Reserved

53PART IIItem 5.

Market for Registrant's Common Equity, Related Unitholder Matters and Issuer Purchases of Equity Securities

54Item 6.

Selected Financial Data

55Item 7.

Trustee's Discussion and Analysis of Financial Condition and Results of Operations

56Item 7A.

Quantitative and Qualitative Disclosure About Market Risk

63Item 8.

Financial Statements and Supplementary Data

65Item 9.

Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

77Item 9A.

Controls and Procedures

77Item 9B.

Other Information

77PART IIIItem 10.

Directors, Executive Officers and Corporate Governance

78Item 11.

Executive Compensation

78Item 12.

Security Ownership of Certain Beneficial Owners and Management and Related
Unitholder Matters

78Item 13.

Certain Relationships and Related Transactions and Director
Independence

79Item 14.

Principal Accountant Fees and Services

80PART IVItem 15.

Exhibits and Financial Statement Schedules

81SIGNATURES

82


References
to the "Trust" in this document refer to ECA Marcellus Trust I. References to "ECA" in this document refer to Energy Corporation of America and its wholly-owned
subsidiaries, and when discussing the conveyance documents, the Private Investors.

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FORWARD-LOOKING STATEMENTS

This Form 10-K contains "forward-looking statements" about ECA and the Trust and other matters discussed herein that
are subject to risks and uncertainties. All statements other than statements of historical fact included in this document, including, without limitation, statements under "Trustee's Discussion and
Analysis of Financial Condition and Results of Operations" and "Risk Factors" regarding the financial position, business strategy, production and reserve growth, development activities and costs and
other plans and objectives for the future operations of ECA and all matters relating to the Trust are forward-looking statements. Actual outcomes and results may differ materially from those
projected.

When
used in this document, the words "believes," "expects," "anticipates," "intends" or similar expressions, are intended to identify such forward-looking statements. Further, all
statements regarding future circumstances or events are forward-looking statements. The following important factors, in addition to those discussed elsewhere in this document, could affect the future
results of the energy industry in general, and ECA and the Trust in particular, and could cause those results to differ materially from those expressed in such forward-looking
statements:



This
Form 10-K describes other important factors that could cause actual results to differ materially from expectations of ECA and the Trust, including under the
caption "Risk Factors." All subsequent written and oral forward-looking statements attributable to ECA or the Trust or persons acting on behalf of ECA or the Trust are expressly qualified in their
entirety by such factors. The Trust assumes no obligation, and disclaims any duty, to update these forward-looking statements.

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GLOSSARY OF CERTAIN TERMS

In this report the following terms have the meanings specified below. Other terms are defined in the text of this report.

AMIThe area of mutual interest, or AMI, consists of the Marcellus Shale formation in approximately 121 square miles of property located in Greene
County, Pennsylvania in which ECA had leased approximately 9,300 acres and owned substantially all of the working interests at the date of formation of the Trust. ECA is obligated to drill the
52 development wells from drill sites on approximately 9,300 leased acres in the AMI. Until ECA has satisfied its drilling obligation, it will not be permitted to drill and complete any well in the
Marcellus Shale formation within the AMI for its own account.

BblOne stock tank barrel, of 42 U.S. gallons liquid volume, used herein in reference to crude oil, condensate or natural gas liquids.

BcfOne billion cubic feet of natural gas.

BcfeOne billion cubic feet of natural gas equivalent, with one barrel of crude oil being equivalent to six Mcf.

BtuA British Thermal Unit, a common unit of energy measurement.

ECA's retained interestECA's retained interest in 10% of the proceeds from the sale of production from the 14 producing Marcellus Shale natural gas
wells located in Greene County, Pennsylvania as well as ECA's retained interest in 50% of the proceeds from the sale of production from the PUD Wells to be drilled in the AMI.

Estimated future net revenuesAlso referred to as "estimated future net cash flows." The result of applying current prices of natural gas to estimated
future production from natural gas proved reserves, reduced by estimated future expenditures, based on current costs to be incurred, in developing and producing the proved reserves, excluding
overhead.

Farmout agreementA farmout agreement is typically an agreement under which a lessee under an oil and gas lease agrees to grant to another party the
right to drill wells on the tract covered by such lease and to earn certain acreage for drilling such wells.

Fractional wellThe fraction (either greater than one or less than one) of a well obtained by dividing the horizontal lateral (measured from the
midpoint of the curve) of such well by 2,500 feet (subject to a maximum of 3,500 feet).

MBblOne thousand barrels of crude oil, condensate or natural gas liquids.

McfOne thousand cubic feet of natural gas.

McfeOne thousand cubic feet of natural gas equivalent, with one barrel of crude oil being equivalent to six Mcf.

MMBtuOne million British Thermal Units.

MMcfOne million cubic feet of natural gas.

MMcfeOne million cubic feet of natural gas equivalent, with one barrel of crude oil being equivalent to six Mcf.

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Net Profits InterestA nonoperating interest that creates a share in gross production from an operating or working interest in oil and natural gas
properties. The share is measured by net profits from the sale of production after deducting costs associated with that production.

PDP Royalty InterestRoyalty interests entitling the Trust to receive an aggregate of 90% of the proceeds (exclusive of any production or development
costs but after deducting post-production costs and any applicable taxes) from the sale of production of natural gas attributable to, as of April 30, 2010, ECA's working interest in
the eight horizontal wells producing from the Marcellus Shale formation together with six additional wells that were undergoing completion
operations and the last of which was turned online on August 27, 2010 ("Producing Wells"), for 20 years and 45% of such proceeds thereafter (pending a sale thereof by the Trust).

"Private Investors"the persons described as the "Private Investors" in the Prospectus.

"Prospectus"the prospectus dated July 1, 2010 and filed with the SEC pursuant to Rule 424(b) on July 1, 2010 relating to the
initial public offering of the Trust Units.

Proved developed reservesReserves that can be expected to be recovered through existing wells with existing equipment and operating methods.

Proved reservesUnder SEC rules for fiscal years ending on or after December 31, 2009, proved reserves are defined as:

Those
quantities of oil and gas, which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be economically produciblefrom a given
date forward, from known reservoirs, and under existing economic conditions, operating methods, and government regulationsprior to the time at which contracts providing the right to
operate expire, unless evidence indicates that renewal is reasonably certain, regardless of whether deterministic or probabilistic methods are used for the estimation. The project to extract the
hydrocarbons must have commenced or the operator must be reasonably certain that it will commence the project within a reasonable time. The area of the reservoir considered as proved includes
(i) the area identified by drilling and limited by fluid contacts, if any, and (ii) adjacent undrilled portions of the reservoir that can, with reasonable certainty, be judged to be
continuous with it and to contain economically producible oil or gas on the basis of available geoscience and engineering data. In the absence of data on fluid contacts, proved quantities in a
reservoir are limited by the lowest known hydrocarbons, LKH, as seen in a well penetration unless geoscience, engineering, or performance data and reliable technology establishes a lower contact with
reasonable certainty. Where direct observation from well penetrations has defined a highest known oil, HKO, elevation and the potential exists for an associated gas cap, proved oil reserves may be
assigned in the structurally higher portions of the reservoir only if geoscience, engineering, or performance data and reliable technology establish the higher contact with reasonable certainty.
Reserves which can be produced economically through application of improved recovery techniques (including, but not limited to, fluid injection) are included in the proved classification when
(i) successful testing by a pilot project in an area of the reservoir with properties no more favorable than in the reservoir as a whole, the operation of an installed program in the reservoir
or an analogous reservoir, or other evidence using reliable technology establishes the reasonable
certainty of the engineering analysis on which the project or program was based; and (ii) the project has been approved for development by all necessary parties and entities, including
governmental entities. Existing economic conditions include prices and costs at which economic producibility from a reservoir is to be determined. The price shall be the average price during the
12-month period prior to the ending date of the period covered by the report, determined as an unweighted arithmetic average of the
first-day-of-the-month price for each month within such period, unless prices are defined by contractual arrangements, excluding escalations based upon
future conditions.

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Proved undeveloped reservesProved reserves that are expected to be recovered from new wells on undrilled acreage, or from existing wells where a
relatively major expenditure is required for recompletion.

PUD Royalty InterestRoyalty interests entitling the Trust to receive an aggregate of 50% of the proceeds (net of post-production costs
and any applicable taxes) from the sale of production of natural gas attributable to ECA's interest in 52 horizontal Marcellus Shale natural gas wells to be drilled in the AMI for 20 years and
25% of such proceeds thereafter (pending a sale thereof by the Trust).

TcfOne trillion standard cubic feet of natural gas.

Working interestThe right granted to the lessee of a property to explore for and to produce and own oil, gas, or other minerals. The working interest
owners bear the exploration, development, and operating costs on either a cash, penalty, or carried basis.

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PART I

Item 1.Business

Introduction

ECA Marcellus Trust I is a statutory trust formed in March 2010 under the Delaware Statutory Trust Act, pursuant to a Trust
Agreement (the "Trust Agreement") among Energy Corporation of America, as Trustor, The Bank of New York Mellon Trust Company, N.A., as Trustee (the "Trustee"), and Wilmington Trust Company, as
Delaware Trustee (the "Delaware Trustee"). The Trust maintains its offices at the office of the Trustee, at 919 Congress Avenue, Austin, Texas 78701. The telephone number of the Trustee is
1-800-852-1422.

The
Trust makes copies of its reports under the Exchange Act available at www.businesswire.com/cnn/ect.htm. The Trust's filings under the Exchange Act are also available electronically
from the website maintained by the Securities and Exchange Commission ("SEC") at http://www.sec.gov. The Trust will also provide electronic and paper copies of its recent filings free of charge upon
request to the Trustee.

General

The Trust does not conduct any operations or activities. The Trust's purpose is, in general, to hold the Royalties (described below),
and to distribute to the Trust unitholders cash that the Trust receives in respect of the Royalties after the payment of Trust expenses. The Trustee performs certain administrative functions in
respect of the Royalties and the Trust units. The Trust derives all or substantially all of its income and cash flows from the Royalties, which in turn are subject to the hedge contracts described in
this report. The Trust is treated as a partnership for federal income tax purposes.

Initially,
the Trust owned royalty interests in the 14 Producing Wells described in the Prospectus (the "Producing Wells") and royalty interests in 52 horizontal natural gas development
wells to be drilled to the Marcellus Shale formation (the "PUD Wells") within the "Area of Mutual Interest," or "AMI", in which ECA presently holds approximately 9,300 acres, of which it owns
substantially all of the working interests, in Greene County, Pennsylvania. The Area of Mutual Interest consists of the Marcellus Shale formation in approximately 121 square miles in Greene County,
Pennsylvania.

As
of December 31, 2010, six PUD Wells were online and producing and two PUD Wells were completed but awaiting initial production. Accordingly, as of December 31, 2010, the
Trust owned royalty interests in twenty producing horizontal natural gas wells producing from the Marcellus Shale formation and located in Greene County, Pennsylvania, royalty interests in two PUD
Wells completed but awaiting initial production and royalty interests in the remaining horizontal natural gas development wells to be drilled to the Marcellus Shale formation. ECA is obligated to
drill the
remaining development wells from drill sites on approximately 9,300 leased acres in the AMI. Until ECA has satisfied its drilling obligation, it will not be permitted to drill and complete any well in
the Marcellus Shale formation on lease acreage included within the AMI for its own account.

The
royalty interests were conveyed from ECA's working interest in the Producing Wells and the PUD Wells limited to the Marcellus Shale formation (the "Underlying Properties"). The
royalty interest in the Producing Wells (the "PDP Royalty Interest") entitles the Trust to receive 90% of the proceeds (exclusive of any production or development costs but after deducting
post-production costs and any applicable taxes) from the sale of production of natural gas attributable to ECA's interest in the Producing Wells for a period of 20 years commencing
on April 1, 2010 and 45% thereafter. The royalty interest in the PUD Wells (the "PUD Royalty Interest" and together with the PDP Royalty Interest, the "Royalties") entitles the Trust to receive
50% of the proceeds (exclusive of any production or development costs but after deducting post-production costs and any applicable taxes) from the sale of production of natural gas
attributable to ECA's interest in the PUD Wells for a period of 20 years

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commencing
on April 1, 2010 and 25% thereafter. As used herein, the term "Producing Wells" means the 14 Producing Wells as defined above, and does not include PUD Wells, even though some or all
of the PUD Wells may have been drilled and completed and may be producing. Approximately 50% of the estimated natural gas production attributable to the Trust's royalty interests has been hedged with
a combination of floors and swaps through March 31, 2014. ECA is entitled to recoup its costs of establishing the floor price contracts only if and to the extent cash available for distribution
by the Trust exceeds certain levels.

ECA
is obligated to drill all of the PUD Wells by March 31, 2013. However, in the event of delays, ECA will have until March 31, 2014 to fulfill its drilling obligation. As
of December 31, 2010, ECA had drilled 16.29 of the PUD Wells, calculated as provided in the Development Agreement. The Trust is not responsible for any costs related to the drilling of
development wells or any other development or operating costs. The Trust's cash receipts in respect of the royalties is determined after deducting post-production costs and any applicable
taxes associated with the PDP and PUD Royalty Interests. The Trust's cash available for distribution includes any cash receipts from the Hedge Contracts and is reduced by Trust administrative expenses
and expenses incurred as a result of being a publicly traded entity. Post-production costs generally consist of costs incurred to gather, compress, transport, process, treat, dehydrate and
market the natural gas produced. Any charge payable to ECA for such post-production costs on its Greene County Gathering System will be limited to $0.52 per MMBtu gathered until ECA has
fulfilled its drilling obligation (the "Post-Production Services Fee"); thereafter, ECA may increase the Post-Production Services Fee to the extent necessary to recover certain
capital expenditures in the Greene County Gathering System.

Generally,
the percentage of production proceeds to be received by the Trust with respect to a well will equal the product of (i) the percentage of proceeds to which the Trust is
entitled under the terms of the conveyances (90% for the Producing Wells and 50% for the PUD Wells) multiplied by (ii) ECA's net revenue interest in the well. ECA on average owns an 81.53% net
revenue interest in the Producing
Wells. Therefore, the Trust will be entitled to receive on average 73.37% of the proceeds of production from the Producing Wells. With respect to a PUD Well, the conveyance related to the PUD Royalty
Interest provides that the proceeds from the PUD Wells will be calculated on the basis that the underlying PUD Wells are burdened only by interests that in total would not exceed 12.5% of the revenues
from such properties, regardless of whether the royalty interest owners are actually entitled to a greater percentage of revenues from such properties. As the applicable net revenue interest of a well
is calculated by multiplying ECA's percentage working interest in such well by the unburdened interest percentage (87.5%), assuming ECA owns a 100% working interest in a PUD Well, such well would have
a minimum 87.5% net revenue interest. Accordingly, the Trust would be entitled to 43.75% of the production proceeds from such well. To the extent ECA's working interest in a PUD Well is less than
100%, the Trust's share of proceeds would be proportionately reduced. Pursuant to the Development Agreement, however, ECA will only satisfy its drilling obligation when it has drilled 52 equivalent
wells. Therefore, any reduction in production proceeds attributable to a PUD Well caused by ECA having less than a 100% working interest in the well will be offset by the requirement to drill
additional wells to achieve a total of 52 equivalent wells.

Target Distributions and Subordination and Incentive Thresholds

The Trust expects to make quarterly cash distributions of substantially all of its cash receipts, after deducting Trust administrative
expenses and the costs incurred as a result of being a publicly traded entity and reserves therefor, on or about 60 days following the completion of each quarter through (and including) the
quarter ending March 31, 2030 (the "Termination Date"). The first quarterly distribution was made on August 31, 2010 to record unitholders as of August 16, 2010.

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The
amount of Trust revenues and cash distributions to Trust unitholders will depend on:



The
amount of the quarterly distributions will fluctuate from quarter to quarter, depending on the proceeds received by the Trust, among other factors. There is no minimum required
distribution. However, in order to provide support for cash distributions on the common units, ECA has agreed to subordinate 4,401,250 of the Trust units it owns, which constitute 25% of the
outstanding Trust units. While the subordinated units will be entitled to receive pro rata distributions from the Trust if and to the extent there is sufficient cash to provide a cash distribution on
the common units which is no less than the applicable quarterly subordination thresholds set forth below, if there is not sufficient cash to fund such a distribution on all Trust units, the
distribution to be made with respect to the subordinated units will be reduced or eliminated in order to make a distribution, to the extent possible, of up to the subordination threshold amount on the
common units. In exchange for agreeing to subordinate these Trust units, and in order to provide additional financial incentive to ECA to perform its drilling obligation and operations on the
Underlying Properties in an efficient and cost-effective manner, ECA is entitled to receive incentive distributions equal to 50% of the amount by which the cash available for distribution
on all of the Trust units in any quarter exceeds 150% of the subordination threshold for such quarter. ECA's right to receive the incentive distributions will terminate upon the expiration of the
subordination period.

ECA
incurred costs of approximately $5.0 million for floor price contracts transferred to the Trust. ECA is entitled to reimbursement for these expenditures plus interest accrued
at 10% per annum ("Reimbursement Amount") only if and to the extent distributions to Trust unitholders would otherwise exceed the incentive threshold. This reimbursement will be deducted, over time,
from the 50% of cash available for distribution in excess of the incentive thresholds otherwise payable to the Trust unitholders.

The
subordinated units will automatically convert into common units on a one-for-one basis and ECA's right to receive incentive distributions and to recoup the
Reimbursement Amount will terminate, at the end of the fourth full calendar quarter following ECA's satisfaction of its drilling obligation to the Trust. The Trust currently expects that ECA will
complete its drilling obligation on or before March 31, 2013 and that, accordingly, the subordinated units would convert into common units on or before March 31, 2014. In the event of
delays, ECA will have until March 31, 2014 under the Development Agreement to drill all the PUD Wells, in which event the subordinated units would convert into common units on or before
March 31, 2015.

The
table below sets forth the subordination and incentive thresholds for each calendar quarter through the first quarter of 2015. The effective date of the Trust is April 1,
2010, meaning it has

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received
the proceeds of production attributable to the PDP Royalty Interest from that date even though the PDP Royalty Interest was not conveyed to the Trust until July 7, 2010.

Period

Subordination
Threshold

Target
Distribution

Incentive
Threshold(per unit)2010:Second Quarter

$
0.181

$
0.227

$
0.272Third Quarter


0.334


0.417


0.501Fourth Quarter


0.478


0.597


0.7162011:First Quarter


0.446


0.558


0.669Second Quarter


0.451


0.564


0.676Third Quarter


0.550


0.688


0.825Fourth Quarter


0.565


0.706


0.8472012:First Quarter


0.574


0.717


0.861Second Quarter


0.602


0.752


0.903Third Quarter


0.624


0.780


0.937Fourth Quarter


0.701


0.876


1.0512013:First Quarter


0.756


0.945


1.135Second Quarter


0.754


0.942


1.131Third Quarter


0.701


0.876


1.052Fourth Quarter


0.659


0.824


0.9892014:First Quarter


0.610


0.763


0.915Second Quarter


0.589


0.736


0.883Third Quarter


0.571


0.713


0.856Fourth Quarter


0.549


0.687


0.8242015:First Quarter


0.519


0.649


0.779


The
Trust will make quarterly cash distributions of substantially all of its cash receipts, after deducting Trust administrative expenses and the costs incurred as a result of being a
publicly traded entity and reserves therefore, on or about 60 days following the completion of each quarter through (and including) the quarter ending March 31, 2030 (the "Termination
Date"). The first quarterly distribution was made on or about August 31, 2010 to record unitholders as of August 15, 2010. The Trust will begin to liquidate on the Termination Date and
will soon thereafter wind up its affairs and terminate. At the Termination Date, 50% of each of the PDP Royalty Interest and the PUD Royalty Interest will revert automatically to ECA. The remaining
50% of each of the PDP Royalty Interest and the PUD Royalty Interest will be sold, and the net proceeds therefrom will be distributed pro rata to the unitholders soon after the Termination Date. ECA
will have a right of first refusal to purchase the remaining 50% of the royalty interests at the Termination Date. Because payments to the Trust will be generated by depleting assets and the Trust has
a finite life with the production from the Underlying Properties
diminishing over time, a portion of each distribution will represent a return of the original investment in the Trust units.

The
Trustee can authorize the Trust to borrow money to pay Trust administrative or incidental expenses that exceed cash held by the Trust. The Trustee may authorize the Trust to borrow
from the Trustee as a lender provided the terms of the loan are fair to the Trust unitholders. The Trustee may also deposit funds awaiting distribution in an account with itself, if the interest paid
to the Trust at least

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equals
amounts paid by the Trustee on similar deposits, and make other short term investments with the funds distributed to the Trust. The Trustee may also hold funds awaiting distribution in a non
interest bearing account.

The
Trust is responsible for paying all legal, accounting, tax advisory, engineering, printing costs and other administrative and out-of-pocket expenses incurred
by or at the direction of the Trustee. The Trust is also responsible for paying other expenses incurred as a result of being a publicly traded entity, including costs associated with annual and
quarterly reports to unitholders, tax return and Schedule K-1 preparation and distribution, independent auditor fees and registrar and transfer agent fees.

The Administrative Services Agreement

The Trust has entered into an Administrative Services Agreement with ECA that obligates the Trust to pay ECA each quarter an
administrative services fee for accounting, bookkeeping and informational services to be performed by ECA on behalf of the Trust relating to the Royalties. The annual fee, payable in equal quarterly
installments, is $60,000. After the completion of ECA's drilling obligation, subject to certain restrictions, ECA and the Trustee each may terminate the provisions of the Administrative Services
Agreement relating to the provision by ECA of administrative services at any time following delivery of notice no less than 90 days prior to the date of termination.

The Development Agreement

The Trust has entered into a Development Agreement with ECA which obligates ECA to drill all of the PUD Wells by March 31, 2013;
however, in the event of delays, ECA will have until March 31, 2014 under the Development Agreement to fulfill its drilling obligation. ECA
granted to the Trust a lien on ECA's interest in the Marcellus Shale formation in the AMI (except the Producing Wells and any other wells which are already producing and not subject to the Royalties)
in order to secure the estimated amount of the drilling costs for the Trust's interests in the PUD Wells (the "Drilling Support Lien"). The original maximum amount of the Drilling Support Lien was
$91 million. As ECA fulfills its drilling obligation over time, the total dollar amount that may be recovered will be proportionately reduced and the completed PUD Wells will be released from
the lien. As of December 31, 2010, the maximum amount of the Drilling Support Lien had been reduced to $74.1 million.

For
purposes of ECA's drilling obligation, and subject to the following paragraph, ECA will be credited with a full development well drilled if its working interest in the development
well drilled is 100%. In the event that ECA's working interest in a development well drilled is less than 100%, ECA will be credited with a portion of a development well in the proportion that its
working interest in the development well bears to 100%. For example, if ECA's working interest in a development well drilled by ECA in connection with fulfilling its drilling obligation to the Trust
is 50%, ECA will be credited with one-half of a development well for purposes of satisfying its drilling obligation in the period the development well was drilled. As a result, ECA will be
required to drill more than the 52 Marcellus Shale natural gas development wells, in the aggregate, if ECA's interest in any development well is less than 100%, provided that ECA may be
required to drill fewer gross development wells due to lateral length from any well or wells exceeding 2,500 feet.

Wells
drilled horizontally in the Marcellus Shale formation with a horizontal lateral distance (measured from the midpoint of the curve to the end of the lateral) of less than
2,500 feet will count as a Fractional well in proportion to total lateral length divided by 2,500 feet. In the event ECA commences drilling of a PUD Well, but fails to drill beyond the
mid-point of the curve, the well will not count as a Fractional well. Wells with a horizontal lateral distance of greater than 2,500 feet (subject to a maximum of 3,500 feet)
will count as one well plus a Fractional well equal to the length drilled in excess of 2,500 (up to 3,500 feet) feet divided by 2,500 feet.

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ECA
is obligated to bear all of the costs of drilling and completing the PUD Wells. ECA is required to complete and equip each development well that reasonably appears to ECA to be
capable of producing gas in quantities sufficient to pay completion, equipping and operating costs. In making such decisions, ECA is required to act as a reasonably prudent operator in the AMI under
the same or similar circumstances as it would act if it were acting with respect to its own properties, disregarding the existence of the royalty interests as burdens affecting such property.

ECA
has agreed not to drill and complete, and not to permit any other person within its control to drill and complete, any well in the Marcellus Shale formation on lease acreage included
within the AMI for its own account until such time as ECA has met its commitment to drill the PUD Wells. Once
ECA has completed its drilling obligation, the Trustee will be required to release the Drilling Support Lien in full. Upon the Trustee's release of the Drilling Support Lien, ECA has further agreed
not to drill and complete, and not to permit any other person within its control to drill and complete, any well on the lease acreage that will have a perforated segment that will be within
500 feet of any perforated interval of a PUD Well or Producing Well in the Marcellus Shale formation.

Hedging Contracts Transferred to the Trust

ECA has also transferred to the Trust natural gas derivative floor price contracts and entered into a
back-to-back swap agreement with the Trust to provide the Trust with the benefit of certain contracts entered into between ECA and third parties that equate to approximately
50% of the estimated natural gas to be produced by the Trust properties from April 1, 2010 through March 31, 2014. The swap contracts relate to approximately 7,500 MMBtu per day
at a weighted average price of $6.78 per MMBtu for the period commencing as of April 1, 2010 through June 30, 2012. The price of the floor price hedging contracts is $5.00 per MMBtu.

The
following table sets forth the volumes of natural gas covered by the natural gas hedging contracts and the floor price for each quarter during the term of the contracts.

Swap Volume
(MMBtu)

Swap Price
(MMBtu)

Floor Volume
(MMBtu)

Floor Price
(MMBtu)Second Quarter 2010


682,500

$
6.75





Third Quarter 2010


690,000

$
6.75





Fourth Quarter 2010


690,000

$
6.75


225,000

$
5.00First Quarter 2011


675,000

$
6.75


159,000

$
5.00Second Quarter 2011


682,500

$
6.75


210,000

$
5.00Third Quarter 2011


690,000

$
6.82


405,000

$
5.00Fourth Quarter 2011


690,000

$
6.82


384,000

$
5.00First Quarter 2012


682,500

$
6.82


369,000

$
5.00Second Quarter 2012


682,500

$
6.82


516,000

$
5.00Third Quarter 2012








1,305,000

$
5.00Fourth Quarter 2012








1,362,000

$
5.00First Quarter 2013








1,395,000

$
5.00Second Quarter 2013








1,380,000

$
5.00Third Quarter 2013








1,278,000

$
5.00Fourth Quarter 2013








1,188,000

$
5.00First Quarter 2014








1,092,000

$
5.00


Marketing and Post-Production Services

Pursuant to the terms of the conveyances creating the Royalties, ECA will have the responsibility to market, or cause to be marketed,
the natural gas production related to the Underlying Properties. The terms of the conveyances creating the Royalties do not permit ECA to charge any marketing fee

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when
determining the proceeds upon which the royalty payments will be calculated. As a result, the proceeds to the Trust from the sales of natural gas production from the Underlying Properties will be
determined based on the same price (net of post-production costs) that ECA receives for natural gas production attributable to ECA's retained interest.

A
wholly owned subsidiary of ECA markets the majority of ECA's operated production and markets substantially all of the gas produced from the Underlying Properties. Such subsidiary
enters into gas sales arrangements with large aggregators of supply and these arrangements may be on a month-to-month basis or may be for a term of up to one year or longer.
The natural gas is sold at a market price and subsequently any applicable post-production costs will be deducted. The Trust will not be charged any fee for marketing by ECA. Currently the
primary aggregators of supply with whom ECA currently does
business in the AMI are BP Energy Company, Centerpoint Energy Services, Inc., South Jersey Resource Group and Hess Corporation. In addition to providing marketing services, ECA's subsidiary purchases
all of the production from the Underlying Properties and those sales account for 100% of the revenue from the Underlying Properties.

Substantially
all of the production from the Producing Wells and the PUD Wells is or will be gathered by ECA's Greene County Gathering System. The Trust pays the initial
Post-Production Services Fee of $0.52 per MMBtu for use of this system, including ECA's costs to gather, compress, transport, process, treat, dehydrate and market the gas. This fee is
fixed until ECA's drilling obligation is satisfied; thereafter, ECA may increase this fee to the extent necessary to recover certain capital expenditures on the Greene County Gathering System made
after the completion of the drilling period, provided the resulting charge does not exceed the prevailing charges in the area for similar services. This fee does not include the cost of fuel used in
the compression process or equivalent electricity charges when electric compressors are used. The December 31, 2010 reserve report described elsewhere in this report assumes a 5% retainage for
compression fuel and line loss on the Greene County Gathering System. This percentage represents current operating conditions, though such level may fluctuate going forward. The Trust's cash available
for distribution will be reduced by ECA's deductions for these post-production services.

ECA
or one of its affiliates may enter into arrangements with third parties to provide gathering, transportation, processing and other reasonable post-production services,
including transportation on downstream interstate pipelines. Such additional post-production costs will be expressed as either (1) a cost per MMBtu or Mcf or (2) a percentage
of the gross production from a well. To the extent that post-production costs are expressed as a cost per MMBtu or Mcf, such costs may be deducted by the ultimate purchaser of the natural
gas prior to payment being made to ECA or its marketing affiliate for such production. At other times, ECA or its marketing affiliate will make payments directly to the third parties providing such
post-production services. In either instance, the Trust's cash available for distribution will be reduced by the costs paid by ECA for such post-production services provided by
third parties. If the post-production costs are expressed as a percentage of the gross production from a well, then the volume of production from that well actually available for sale is
less the applicable percentage charged, and as a result the reserves associated with that well that are attributable to the royalty interest are reduced accordingly.

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The post-production costs for natural gas production from the Producing Wells were $0.52 per MMBtu as of December 31, 2010. However, such costs
may increase or decrease in the future. The post-production costs attributable to third party arrangements may be costs established by arms-length negotiations or pursuant to a
state or federal regulatory proceeding. ECA will be permitted to deduct from the proceeds available to the Trust other post-production costs necessary to make the natural gas from the
Underlying Properties marketable, so long as such costs do not materially exceed the charges prevailing in the area for similar services.

ECA
recently executed a binding precedent agreement with a third party to provide firm transportation downstream of ECA's Greene County Gathering System for 50,000 Dth per day.
This firm transportation arrangement is scheduled to be in service August 1, 2011 and will be at the third party's filed tariff rate, which equates to $0.1996 per MMbtu at one hundred percent
loadfactor. This is a post-production cost which will ensure downstream capacity and such costs will be charged to the Trust's interest.

ECA
expects to enter into similar gas supply arrangements and post-production service arrangements for the gas to be produced from the underlying PUD properties. Any new gas
supply arrangements or those entered into for providing post-production services, will be utilized in determining the proceeds for the Underlying Properties.

Competition and Markets

The natural gas industry is highly competitive. ECA competes with major oil and gas companies and independent oil and gas companies for
oil and gas leases, equipment, personnel and markets for the sale of natural gas. Many of these competitors are financially stronger than ECA, but even financially troubled competitors can affect the
market because they may need to sell natural gas regardless of price to attempt to maintain cash flow. The Trust is subject to the same competitive conditions as ECA and other companies in the natural
gas industry.

Natural
gas competes with other forms of energy available to customers, primarily based on price. These alternate forms of energy include electricity, coal and fuel oils. Changes in the
availability or price of natural gas or other forms of energy, as well as business conditions, conservation, legislation, regulations and the ability to convert to alternate fuels and other forms of
energy may affect the demand for natural gas.

Future
price fluctuations for natural gas will directly affect Trust distributions, estimates of reserves attributable to the Trust's interests, and estimated and actual future net
revenues to the Trust. In view of the many uncertainties that affect the supply and demand for natural gas, neither the Trust nor ECA can make reliable predictions of future gas supply or demand,
future gas prices or the effect of future gas prices on the Trust.

Environmental Matters and Regulation

The operations of the properties comprising the Underlying Properties are subject to stringent and complex federal, state and local
laws and regulations governing environmental protection as well as the discharge of materials into the environment. These laws and regulations may, among other things:



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Failure
to comply with these laws and regulations may trigger a variety of administrative, civil and criminal enforcement measures, including the assessment of monetary penalties, the
imposition of remedial requirements and the issuance of orders enjoining future operations or imposing additional compliance requirements on such operations. Certain environmental statutes impose
strict joint and several liability for costs required to clean up and restore sites where hazardous substances have been disposed or otherwise released. Moreover, these laws, rules and regulations may
also restrict the rate of oil and natural gas production below the rate that would otherwise be possible. The regulatory burden on the oil and natural gas industry increases the cost of doing business
in the industry and consequently affects profitability. Additionally, Congress and federal and state agencies frequently revise environmental laws and regulations, and any changes that result in more
stringent and costly waste handling, disposal and cleanup requirements for the oil and natural gas industry could have a significant impact on the operating costs of the properties comprising the
underlying properties.

The
following is a summary of the existing laws, rules and regulations to which the operations of the properties comprising the underlying properties are subject that are material to the
operation of the Underlying Properties.

Natural gas regulation.The availability, terms and cost of transportation significantly affect sales of natural gas. The interstate
transportation
and sale for resale of natural gas is subject to federal regulation, including regulation of the terms, conditions and rates for interstate transportation, storage and various other matters, primarily
by the Federal Energy Regulatory Commission. Federal and state
regulations govern the price and terms for access to natural gas pipeline transportation. The Federal Energy Regulatory Commission's regulations for interstate natural gas transmission in some
circumstances may also affect the intrastate transportation of natural gas.

Although
natural gas prices are currently unregulated, Congress historically has been active in the area of natural gas regulation. Neither ECA nor the Trust can predict whether new
legislation to regulate natural gas might be proposed, what proposals, if any, might actually be enacted by Congress or the various state legislatures, and what effect, if any, the proposals might
have on the operations of the Underlying Properties. Sales of condensate and natural gas liquids are not currently regulated and are made at market prices.

Environmental regulation.The exploration, development and production operations of ECA are subject to stringent and comprehensive
federal, state and
local laws and regulations governing the discharge of materials into the environment or otherwise relating to environmental protection. These laws and regulations may, among other things, require the
acquisition of permits to conduct construction, drilling, water withdrawal and waste disposal operations; govern the amounts and types of substances that may be disposed or released into the
environment; limit or prohibit construction or drilling activities in sensitive areas such as wetlands, wilderness areas or areas inhabited by endangered or threatened species; require investigatory
and remedial actions to mitigate pollution conditions arising from ECA's operations or attributable to former operations; and impose obligations to reclaim and abandon well sites and pits. Failure to
comply with these laws and regulations may result in the assessment of administrative, civil and criminal penalties, the imposition of remedial obligations and the issuance of orders enjoining some or
all of ECA's operations in affected areas.

The
clear trend in environmental regulation is to place more restrictions and limitations on activities that may affect the environment, and thus, any changes in environmental laws and
regulations or re-interpretation of enforcement policies that result in more stringent or costly construction, drilling, water withdrawal, waste handling, storage, transport, disposal, or
remediation requirements could have a material adverse effect on ECA's operations and financial position. ECA may be unable to pass on increased compliance costs to its customers. Moreover, accidental
releases or spills may occur in the

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course
of ECA's operations, and there can be no assurance that ECA will not incur significant costs and liabilities as a result of such releases or spills, including any third party claims for damage
to property and natural resources or personal injury. While ECA believes that it is in substantial compliance with existing environmental laws and regulations and that continued compliance with
current requirements would not have a material adverse effect on it, there is no assurance that this trend will continue in the future.

The
following is a summary of the more significant existing environmental, health and safety laws and regulations to which ECA's business operations are subject and for which compliance
may have a material adverse impact on ECA's capital expenditures, results of operations or financial position.

Hazardous Substances and Wastes.The Comprehensive Environmental Response, Compensation, and Liability Act, as amended, ("CERCLA"), also
known as the
Superfund law and comparable state laws impose liability without regard to fault or the legality of the original conduct on certain classes of persons who are considered to be responsible for the
release of a "hazardous substance" into the environment. These persons include current and prior owners or operators of the site where the release occurred and entities that disposed or arranged for
the disposal of the hazardous substances found at the site. Under CERCLA, these "responsible persons" may be subject to joint and several, strict liability for the costs of cleaning up the hazardous
substances that have been released into the environment, for damages to natural resources, and for the costs of certain health studies. CERCLA also authorizes the EPA and, in some instances, third
parties to act in response to threats to the public health or the environment and to seek to recover from the responsible classes of persons the costs they incur. It is not uncommon for neighboring
landowners and other third parties to file claims for personal injury and property damage allegedly caused by the release of hazardous substances or other pollutants into the environment. ECA
generates materials in the course of ECA's operations that may be regulated as hazardous substances.

ECA
also generates solid and hazardous wastes that are subject to the requirements of the Resource Conservation and Recovery Act, as amended ("RCRA"), and comparable state statutes. RCRA
imposes strict requirements on the generation, storage, treatment, transportation and disposal of hazardous wastes. In the course of its operations, ECA generates petroleum hydrocarbon wastes and
ordinary industrial wastes that may be regulated as hazardous wastes.

ECA
currently owns or leases, and in the past may have owned or leased, properties that have been used for numerous years to explore and produce oil and natural gas. Although ECA may
have utilized operating and disposal practices that were standard in the industry at the time, hydrocarbons and wastes may have been disposed of or released on or under the properties owned or leased
by ECA or on or under the other locations where these hydrocarbons and wastes have been taken for treatment or disposal. In addition, certain of these properties have been operated by third parties
whose treatment and disposal or release of hydrocarbons and wastes was not under ECA's control. These properties and wastes disposed thereon may be subject to CERCLA, RCRA and analogous state laws.
Under these laws, ECA could be required to remove or remediate previously disposed wastes, to clean up contaminated property and to perform remedial operations to prevent future contamination.

Air Emissions.The Clean Air Act, as amended, and comparable state laws and regulations restrict the emission of air pollutants from
many sources and
also impose various monitoring and reporting requirements. These laws and regulations may require ECA to obtain pre-approval for the construction or modification of certain projects or
facilities expected to produce or significantly increase air emissions, obtain and strictly comply with stringent air permit requirements or utilize
specific equipment or technologies to control emissions. Obtaining permits has the potential to delay the development of natural gas projects. While ECA may be required to incur certain capital
expenditures in the next few years for air pollution control equipment or other air emissions-related issues, ECA does not believe that such requirements will have a material adverse effect on its
operations.

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On
December 15, 2009, the EPA published its findings that emissions of carbon dioxide, methane and other greenhouse gases ("GHGs") present an endangerment to public health and the
environment because emissions of such gases are, according to the EPA, contributing to warming of the Earth's atmosphere and other climatic changes. These findings allow the EPA to adopt and implement
regulations that would restrict emissions of GHGs under existing provisions of the federal Clean Air Act. These findings allow the EPA to adopt and implement regulations that would restrict emissions
of GHGs under existing provisions of the federal Clean Air Act. Accordingly, the EPA has adopted regulations that could trigger permit review for GHG emissions from certain stationary sources. The EPA
has also issued regulations that require the establishment and reporting of an inventory of GHG emissions from specified stationary sources, including certain onshore oil and natural gas exploration,
development and production facilities. The adoption and implementation of any regulations imposing reporting obligations on, or limiting emissions of GHG gases from, ECA's equipment and operations
could require ECA to incur costs to reduce emissions of GHGs associated with its operations or could adversely affect demand for the natural gas it produces. Finally, it should be noted that some
scientists have concluded that increasing concentrations of GHGs in the Earth's atmosphere may produce climate changes that have significant physical effects, such as increased frequency and severity
of storms, droughts, and floods and other climatic events; if any such effects were to occur, they could have an adverse effect on ECA's assets and operations.

More
than one-third of the states have begun taking actions to control and/or reduce emissions of GHGs, primarily through the planned development of GHG emission inventories
and/or regional GHG cap and trade programs. Although most of the state-level initiatives have to date focused on large sources of GHG emissions, such as coal-fired electric plants, it is
possible that smaller sources of emissions could become subject to GHG emission limitations or allowance purchase requirements in the future. Any one of these climate change regulatory and legislative
initiatives could have a material adverse effect on ECA's business, financial condition and results of operations.

Water Discharges.The Federal Water Pollution Control Act, as amended ("Clean Water Act"), and analogous state laws impose restrictions
and strict
controls regarding the discharge of pollutants into navigable waters. Pursuant to the Clean Water Act and analogous state laws, permits must be obtained to discharge pollutants into state waters or
waters of the United States. Any such discharge of pollutants into regulated waters must be performed in accordance with the terms of the permit issued
by EPA or the analogous state agency. The Pennsylvania Department of Environmental Protection has adopted a new permitting policy concerning surface water discharges from wastewater treatment
facilities handling flowback fluids and produced waters from oil and gas well sites that could result in increased requirements for treatment of these fluids and limitations on their discharge to
receiving waters. If ECA is unable to remove and dispose of water at a reasonable cost and within applicable environmental rules, ECA's ability to produce gas commercially and in commercial quantities
from the Underlying Properties could be impaired.

Spill
prevention, control and countermeasure requirements under federal law require appropriate containment berms and similar structures to help prevent the contamination of navigable
waters in the event of a petroleum hydrocarbon tank spill, rupture or leak. In addition, the Clean Water Act and analogous state laws, including in Pennsylvania, require individual permits or coverage
under general permits for discharges of storm water runoff from certain types of facilities.

It
is customary to recover natural gas from deep shale formations, including the Marcellus Shale formation, through the use of hydraulic fracturing, combined with sophisticated
horizontal drilling. Hydraulic fracturing involves the injection of water, sand and chemical additives under pressure into rock formations to stimulate gas production. Due to public concerns raised
regarding potential impacts of hydraulic fracturing on groundwater quality, legislative and regulatory efforts at the federal level and in some states have been initiated to require or make more
stringent the permitting and compliance requirements for hydraulic fracturing operations. The Pennsylvania Environmental Quality Board has

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proposed
amendments to Pennsylvania's oil and gas regulations to require, among other things, additional information in the stimulation record including water source identification and volume as well
as a list of chemicals used to stimulate the well, including chemicals used in hydraulic fracturing. Any increased federal, state or local regulation could reduce the volumes of natural gas that ECA
produces, which would materially adversely affect its revenues and results of operations. Moreover, in March 2010, the EPA announced that it has allocated $1.9 million in 2010 and has requested
funding in fiscal year 2011 for conducting a comprehensive research study on the potential adverse impacts that hydraulic fracturing may have on water quality and public health. The results of such a
study, once completed, could further spur action towards federal legislation and regulation of hydraulic fracturing activities. An additional level of regulation and permitting of hydraulic fracturing
operations at the federal level, could lead to operational delays, increased operating costs and additional regulatory burdens that could make it more difficult for ECA to perform hydraulic
fracturing.

Endangered Species Act.The federal Endangered Species Act, as amended ("ESA"), restricts activities that may affect endangered and
threatened
species or their habitats. While some of ECA's facilities or leased acreage may be located in areas that are designated as habitat for endangered or threatened species, ECA believes that it is in
substantial compliance with the ESA. However, the designation of previously unidentified endangered or threatened species could cause ECA to incur additional costs or become subject to operating
restrictions or bans in the affected areas.

Employee Health and Safety.The operations of ECA are subject to a number of federal and state laws and regulations, including the
federal
Occupational Safety and Health Act, as amended ("OSHA"), and comparable state statutes, whose purpose is to protect the health and safety of workers. In addition, the OSHA hazard communication
standard, the EPA community right-to-know regulations under Title III of the federal Superfund Amendment and Reauthorization Act and comparable state statutes require that
information be maintained concerning hazardous materials used or produced in ECA's operations and that this information be provided to employees, state and local government authorities and citizens.
ECA believes that it is in substantial compliance with all applicable laws and regulations relating to worker health and safety.

State regulation.Pennsylvania regulates the drilling for, and the production, gathering and sale of, natural gas, including imposing
requirements
for obtaining drilling permits, the method of developing new fields, the spacing and operation of wells, production rates and the prevention of waste of natural gas resources. The Pennsylvania
Environmental Quality Board has proposed amendments to Pennsylvania's oil and gas regulations to update existing requirements regarding the drilling, casing, cementing, testing, monitoring and
plugging of oil and gas wells, and the protection of water supplies, that, if adopted in their proposed form, could require ECA to incur increased operating costs. Realized prices are not currently
subject to state regulation or subject to other similar direct economic regulation, but there can be no assurance that they will not do so in the future. The effect of these regulations may be to
limit the amounts of natural gas that may be produced from ECA's wells and to limit the number of wells or locations ECA can drill.

ECA
believes that it is in substantial compliance with all existing environmental laws and regulations applicable to the current operations of the Underlying Properties and that its
continued compliance with existing requirements will not have a material adverse effect on the cash distributions to the Trust unitholders. ECA did not incur any material capital expenditures for
remediation or pollution control activities for the year ended December 31, 2010 with respect to the Underlying Properties. Additionally, ECA has informed the Trust that ECA is not aware of any
environmental issues or claims that will require material capital expenditures during 2011 with respect to the Underlying Properties. However, there is no assurance that the passage of more stringent
laws or implementing regulations in the future will not have a negative impact on the operations of these properties and the cash distributions to the Trust unitholders.

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Description of the Trust Units

Each Trust unit is a unit of beneficial interest in the Trust and is entitled to receive cash distributions from the Trust on a pro
rata basis, subject to the subordination provisions described elsewhere in this report. Subject to the subordination provisions, each Trust unitholder has the same rights regarding Trust units as
every other Trust unitholder. The Trust has 17,605,000 Trust units outstanding, consisting of 13,203,750 common units and 4,401,250 subordinated units.

Distributions and Income Computations

Cash distributions to Trust unitholders are expected to be made from available funds at the Trust for each calendar quarter. Production
payments due to the Trust with respect to any calendar quarter will be accrued based on estimated production volumes attributable to the Trust properties during such quarter (as measured at ECA
metering systems) and market prices for such volumes. ECA is expected to make a payment to the Trust equal to such accrued amounts within 30 days of the end of such calendar quarter. After
receipt of such payment, the Trustee will determine for such calendar quarter the amount of funds available for distribution to the Trust unitholders. Available funds are the excess cash, if any,
received by the Trust over the Trust's expenses for that quarter. Available funds will be reduced by any cash the Trustee decides to hold as a reserve against future liabilities. Any difference
between the payment made by ECA to the Trust with respect to a calendar quarter and the actual cash production payments relative to the Trust properties received by ECA will be netted against future
payments by ECA to the Trust. As a result, during the subordination period, the netting of such difference could result in (i) an inability by the Trust to make cash distributions in excess of
applicable subordination thresholds with respect to a subsequent calendar quarter or (ii) distributions in excess of the incentive thresholds for a prior calendar quarter notwithstanding the
fact that such shortfall or excess, respectively, would not have existed had production payments owed to the Trust been calculated on an actual cash basis.

The
amount of available funds for distribution each quarter will be payable to the Trust unitholders of record on or about the 45th day following the end of such calendar quarter or such
later date as the Trustee determines is required to comply with legal or stock exchange requirements. The Trustee expects to distribute cash on or about the 60th day (or the next succeeding business
day following such day if such day is not a business day) following such calendar quarter to each person who was a Trust unitholder of record on the quarterly record date.

Unless
otherwise advised by counsel or the IRS, the Trustee will treat the income and expenses of the Trust for each month as belonging to the Trust unitholders of record on the first
business day of the month.

Transfer of Trust Units

Trust unitholders may transfer their Trust units in accordance with the Trust Agreement. The Trustee will not require either the
transferor or transferee to pay a service charge for any transfer of a Trust unit. The Trustee may require payment of any tax or other governmental charge imposed for a transfer. The Trustee may treat
the owner of any Trust unit as shown by its records as the owner of the Trust unit. The Trustee will not be considered to know about any claim or demand on a Trust unit by any party except the record
owner. A person who acquires a Trust unit after any quarterly record date will not be entitled to the distribution relating to that quarterly record date. Delaware law will govern all matters
affecting the title, ownership or transfer of Trust units.

Periodic Reports

The Trustee will file all required Trust federal and state income tax and information returns. The Trustee will prepare and mail to
Trust unitholders a Schedule K-1 that Trust unitholders need to

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correctly
report their share of the income and deductions of the Trust. The Trustee will also cause to be prepared and filed reports required to be filed under the Securities Exchange Act of 1934, as
amended, and by the rules of any securities exchange or quotation system on which the Trust units are listed or admitted to trading.

Each
Trust unitholder and his representatives may examine, for any proper purpose, during reasonable business hours, the records of the Trust.

Liability of Trust Unitholders

Under the Delaware Statutory Trust Act, Trust unitholders will be entitled to the same limitation of personal liability extended to
stockholders of private corporations for profit
under the General Corporation Law of the State of Delaware. No assurance can be given, however, that the courts in jurisdictions outside of Delaware will give effect to such limitation.

Voting Rights of Trust Unitholders

The Trustee or Trust unitholders owning at least 10% of the outstanding Trust units may call meetings of Trust unitholders. The Trust
will be responsible for all costs associated with calling a meeting of Trust unitholders unless such meeting is called by the Trust unitholders, in which case the Trust unitholders will be responsible
for all costs associated with calling such meeting of Trust unitholders. Meetings must be held in such location as is designated by the Trustee in the notice of such meeting. The Trustee must send
written notice of the time and place of the meeting and the matters to be acted upon to all of the Trust unitholders at least 20 days and not more than 60 days before the meeting. Trust
unitholders representing a majority of Trust units outstanding must be present or represented to have a quorum. Each Trust unitholder is entitled to one vote for each Trust unit owned.

Unless
otherwise required by the Trust Agreement, a matter may be approved or disapproved by the vote of a majority of the Trust units held by the Trust unitholders at a meeting where
there is a quorum. This is true, even if a majority of the total outstanding Trust units did not approve it. The affirmative vote of the holders of a majority of the outstanding Trust units is
required to:



except
that if any of the matters listed above (except removal of the Trustee or the Delaware Trustee) would result in a materially disproportionate benefit to ECA or its affiliates compared to other
owners of common units, the affirmative vote of the holders of a majority of common units and a majority of Trust units is required.

In
addition, certain amendments to the Trust Agreement may be made by the Trustee without approval of the Trust unitholders. The Trustee must consent before all or any part of the Trust
assets can be sold except in connection with the dissolution of the Trust or limited sales directed by ECA in conjunction with its sale of Underlying Properties.

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Description of the Trust Agreement

The Trust was created under Delaware law to acquire and hold the Royalties for the benefit of the Trust unitholders pursuant to an
agreement between ECA, the Trustee and the Delaware Trustee. The Royalties are passive in nature and neither the Trust nor the Trustee has any control over or responsibility for costs relating to the
operation of the Underlying Properties. Neither ECA nor other operators of the Underlying Properties have any contractual commitments to the Trust to provide additional funding or to conduct further
drilling on or to maintain their ownership interest in any of these properties other than the obligations of ECA to designate and drill PUD Wells.

The
Trust Agreement provides that the Trust's business activities are limited to owning the Royalties and any activity reasonably related to such ownership, including activities required
or permitted by the terms of the conveyances related to the royalty Royalties and the natural gas hedging contracts relating to an estimated 50% of the Trust's royalty production for a term ending
March 31, 2014. As a result,
the Trust is not permitted to acquire other oil and gas properties or royalty interests. The Trust is not able to issue any additional Trust units.

Duties and Powers of the Trustee

The duties of the Trustee are specified in the Trust Agreement and by the laws of the State of Delaware, except as modified by the
Trust Agreement. The Trustee's principal duties consist of:



If
a Trust liability is contingent or uncertain in amount or not yet currently due and payable, the Trustee may create a cash reserve to pay for the liability. If the Trustee determines
that the cash on
hand and the cash to be received are insufficient to cover the Trust's liability, the Trustee may borrow funds required to pay the liabilities. The Trustee may borrow the funds from any person,
including itself or its affiliates. The terms of such indebtedness, if funds were loaned by the entity serving as Trustee or Delaware Trustee, would be similar to the terms which such entity would
grant to a similarly situated commercial customer with whom it did not have a fiduciary relationship, and such entity shall be entitled to enforce its rights with respect to any such indebtedness as
if it were not then serving as Trustee or Delaware Trustee. If the Trustee borrows funds, the Trust unitholders will not receive distributions until the borrowed funds are repaid.

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Responsibility and Liability of the Trustee

The duties and liabilities of the Trustee are set forth in the Trust Agreement. The Trust Agreement provides that (i) the
Trustee shall not have any duties or liabilities, including fiduciary duties, except as expressly set forth in the Trust Agreement, and (ii) the duties and liabilities of the Trustee as set
forth in the Trust Agreement replace any other duties and liabilities, including fiduciary duties, to which the Trustee might otherwise be subject.

The
Trustee does not make business decisions affecting the assets of the Trust. Therefore, substantially all of the Trustee's functions under the Trust Agreement are expected to be
ministerial in nature. In discharging its duty to Trust unitholders, the Trustee may act in its discretion and will be liable to the Trust unitholders only for fraud, gross negligence or acts or
omissions constituting bad faith. The Trustee will not be liable for any act or omission of its agents or employees unless the Trustee acted with fraud, in bad faith or with gross negligence in their
selection and retention. The Trustee will be indemnified individually or as the Trustee for any liability or cost that it incurs in the administration of the Trust, except in cases of fraud, gross
negligence or bad faith. The Trustee will have a lien on the assets of the Trust as security for this indemnification and its compensation earned as Trustee.

Assets of the Trust

The assets of the Trust consist of the Royalties, natural gas hedging contracts, the Administrative Services Agreement, the Development
Agreement, and any cash and temporary investments being held for the payment of expenses and liabilities and for distribution to the Trust unitholders.

Liabilities of the Trust

Because the Trust does not conduct an active business and the Trustee has little power to incur obligations, it is expected that the
Trust will only incur liabilities for routine administrative expenses, such as the Trustee's fees and accounting, engineering, legal, tax advisory and other professional fees.

Fees and Expenses

The Trust is responsible for paying all legal, accounting, tax advisory, engineering, printing and other administrative and
out-of-pocket expenses incurred by or at the direction of the Trustee or the Delaware Trustee. The Trust will also be responsible for paying other expenses incurred as a result
of its being a publicly traded entity, including costs associated with annual and quarterly reports to unitholders, tax returns and Schedule K-1 preparation and distribution,
independent auditor fees and registrar and transfer agent fees.

Duration of the Trust; Sale of Royalties

The Trust will remain in existence until the Termination Date, which is March 31, 2030. The Trust will dissolve prior to the
Termination Date if:



The
Trustee would then sell all of the Trust's assets, either by private sale or public auction, and distribute the net proceeds of the sale to the Trust unitholders.

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Federal Income Tax Considerations

The Trust's federal income tax reporting position is that it should be classified as a partnership for federal and applicable state
income tax purposes. This position relies on the opinion of Vinson & Elkins L.L.P., counsel to ECA and the Trust rendered in connection with the initial public offering of the Trust Units, in
which counsel opined that at least 90% of the Trust's gross income will be qualifying income within the meaning of Section 7704 of the Internal Revenue Code of 1986, as amended. The Trust's
federal income tax reporting positions are consistent with the Federal Income Tax Considerations section in the Trust's prospectus filed with the SEC pursuant to Rule 424(b) under the
Securities Act of 1933, as amended, on July 1, 2010 in connection with the offering of its common units to the public (the "Federal Income Tax Considerations Section in the Prospectus").
However, as discussed in detail below under Item 1A. Risk FactorsTax Risks Related to the Trust's Common Units, the Trust has not requested a ruling from the IRS regarding its
United States federal income tax reporting positions and its positions may not be sustained by a court or if contested by the IRS.

The
material federal income tax considerations that may be relevant to certain Trust unitholders were discussed in the Federal Income Tax Considerations Section in the Prospectus.
Unitholders and prospective unitholders should review the Prospectus.

Miscellaneous

The Trustee may consult with counsel, accountants, tax advisors, geologists and engineers and other parties the Trustee believes to be
qualified as experts on the matters for which advice is sought. The Trustee will be protected for any action it takes in good faith reliance upon the opinion of the expert.

The
Delaware Trustee and the Trustee may resign at any time or be removed with or without cause at any time by a vote of not less than a majority of the outstanding Trust units. Any
successor must be a bank or Trust company meeting certain requirements including having combined capital, surplus and undivided profits of at least $20 million, in the case of the Delaware
Trustee, and $100 million, in the case of the Trustee.

Item 1A.Risk Factors

Drilling and completion of the PUD Wells on the Underlying Properties are high risk activities with many uncertainties that could delay ECA's anticipated drilling schedule
and adversely affect future production from the Underlying Properties. Any such delays or reductions in production could decrease future revenues that are available for distribution to unitholders.

The drilling and completion of the PUD Wells on the Underlying Properties are subject to numerous risks beyond ECA's and the Trust's
control, including risks that could delay ECA's current drilling schedule for the PUD Wells and the risk that drilling will not result in commercially viable natural gas production. ECA's decisions to
develop or otherwise exploit certain areas within the AMI will depend in part on the evaluation of data obtained through geophysical and geological analyses, production data and engineering studies,
the results of which are often inconclusive or subject to varying interpretations. ECA's costs of drilling, completing and operating wells are often
uncertain before drilling commences. Overruns in budgeted expenditures are common risks that can make a particular project uneconomical. Further, ECA's future business, financial condition, results of
operations, liquidity or ability to finance planned capital expenditures could be materially and adversely affected by any factor that may curtail, delay or cancel drilling, including the
following:



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In
the event that drilling of development wells is delayed or development wells have lower than anticipated production due to one of the factors above or for any other reason, estimated
future distributions to unitholders may be reduced.

Natural gas prices fluctuate due to a number of factors that are beyond the control of the Trust and ECA, and lower prices could reduce proceeds to the Trust and cash
distributions to unitholders.

The Trust's reserves and quarterly cash distributions are highly dependent upon the prices realized from the sale of natural gas.
Natural gas prices can fluctuate widely on a month-to-month basis in response to a variety of factors that are beyond the control of the Trust and ECA. These factors include,
among others:



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Lower
natural gas prices will reduce proceeds to which the Trust is entitled and may ultimately reduce the amount of natural gas that is economic to produce from the Underlying
Properties. As a result, the operator of any of the Underlying Properties could determine during periods of low gas prices to shut in or curtail production from wells on the Underlying Properties. In
addition, the operator of the Underlying Properties could determine during periods of low gas prices to plug and abandon marginal wells that otherwise may have been allowed to continue to produce for
a longer period under conditions of higher prices. Specifically, ECA may abandon any well or property if it reasonably believes that the well or property can no longer produce natural gas in
commercially economic quantities. This could result in termination of the portion of the royalty interest relating to the abandoned well or property, and ECA would have no obligation to drill a
replacement well. In making such decisions, ECA is required under the applicable conveyance to act as a reasonably prudent operator in the AMI under the same or similar circumstances as it would act
if it were acting with respect to its own properties, disregarding the existence of the royalty interests as burdens affecting such property. As a result, the volatility of natural gas prices also
reduces the accuracy of estimates of future cash distributions to Trust unitholders.

Actual reserves and future production may be less than current estimates, which could reduce cash distributions by the Trust and the value of the Trust units.

The value of the Trust units and the amount of future cash distributions to the Trust unitholders will depend upon, among other things,
the accuracy of the reserves estimated to be attributable to the Trust's royalty interests. The Trust's reserve quantities and revenues are based on estimates of reserve quantities and revenues for
the Underlying Properties. See "The underlying propertiesNatural gas reserves" of the Prospectus for a discussion of the method of allocating proved reserves to the Trust. It is not
possible to measure underground accumulations of natural gas in an exact way, and estimating reserves is inherently uncertain. Ultimately, actual production and revenues for the Underlying Properties
could vary negatively and in material amounts from estimates and those variations could be material. Petroleum engineers are required to make subjective estimates of underground accumulations of
natural gas based on factors and assumptions that include:



Changes
in these assumptions or actual production costs incurred and results of actual development and production costs could materially decrease reserve estimates.

In
particular, reserve estimates for fields that do not have a lengthy production history are less reliable than estimates for fields with lengthy production histories. A lack of
production history may contribute to inaccuracy in estimates of proved reserves, future production rates and the timing of development expenditures. The Producing Wells have been operational for less
than one year. Furthermore, the use of horizontal drilling methods on the Underlying Properties is a recent development in the Marcellus Shale, with ECA commencing the drilling of its first horizontal
well in the Marcellus Shale in 2007. The lack of operational history for horizontal wells in the Marcellus Shale formation may also contribute to the inaccuracy of estimates of proved reserves. A
material and adverse variance of actual production, revenues and expenditures from those underlying reserve estimates, including variances attributable to a lack of production history within the
Marcellus Shale

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formation,
would have a material adverse effect on the financial condition, results of operations and cash flows of the Trust and would reduce cash distributions to Trust unitholders.

The generation of proceeds for distribution by the Trust depends in part on gathering, transportation and processing facilities owned by ECA and others. Any limitation in
the availability of those facilities could interfere with sales of natural gas production from the Underlying Properties.

The amount of natural gas that may be produced and sold from any well to which the Underlying Properties relate is subject to
curtailment in certain circumstances, such as by reason of weather conditions, pipeline interruptions due to scheduled and unscheduled maintenance, failure of tendered gas to meet quality
specifications of gathering lines or downstream transporters, excessive line pressure which prevents delivery of gas, physical damage to the gathering system or transportation system or lack of
contracted capacity on such systems. The curtailments may vary from a few days to several months. In many cases, ECA is provided limited notice, if any, as to when production will be curtailed and the
duration of such curtailments. If ECA is forced to reduce production due to such a curtailment, the revenues of the Trust and the amount of cash distributions to
the Trust unitholders would similarly be reduced due to the reduction of proceeds from the sale of production.

Some
of the wells on the underlying PUD properties will be drilled in locations that currently are not serviced by gathering and transportation pipelines or locations in which existing
gathering and transportation pipelines do not have sufficient capacity to transport additional production. As a result, ECA may not be able to sell the natural gas production from certain PUD Wells
until the necessary gathering systems and/or transportation pipelines are constructed or until the necessary transportation capacity on an interstate pipeline is obtained. Any delay in the
construction or expansion of these gathering systems beyond the currently estimated construction schedules, or a delay in the procurement of additional transportation capacity would delay the receipt
of any proceeds that may be associated with natural gas production from the PUD Wells. If transportation capacity is not available, either directly from a pipeline or pipelines or in the secondary
capacity market, ECA would be required to request that the pipeline or pipelines construct additional facilities or expand their existing facilities to provide additional transportation capacity. The
pipelines are not required to undertake such construction or expansion. If the pipeline refuses to construct additional transportation capacity or expand its existing transportation capacity, ECA may
not be able to receive proceeds that may be associated with natural gas production from wells on the underlying PUD properties. Any delay in the construction or expansion of pipeline transportation
facilities will delay the receipt of any proceeds that may be associated with natural gas production from wells on the underlying PUD properties.

The generation of proceeds for distribution by the Trust depends in part on the ability of ECA and/or its customers to obtain service on transportation facilities owned by
third party pipelines; any limitation in the availability of those facilities and/or any increase in the cost of service on those facilities could interfere with sales of natural gas production from
the Underlying Properties.

Natural gas that is gathered on the Greene County Gathering System, including natural gas produced from the Underlying Properties, is
currently shipped on two interstate natural gas transportation pipelines. ECA's purchasers have contracted with those pipelines for firm or interruptible transportation service. The rates for service
on the transportation pipelines are regulated by the Federal Energy Regulatory Commission ("FERC") and are subject to increase if the pipeline demonstrates that the existing rates are unjust and
unreasonable.

ECA
recently executed a binding precedent agreement with a third party to provide firm transportation downstream of ECA's Greene County Gathering System for 50,000 Dth per day.
This firm transportation arrangement is scheduled to be in service August 1, 2011 and will be at the third party's filed tariff rate, which equates to $0.1996 per MMbtu at one hundred percent
loadfactor. This is

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a
post-production cost which will ensure downstream capacity and such costs will be charged to the Trust's interest.

ECA
may, in the future, seek to obtain additional firm transportation capacity, but there can be no assurance that capacity will be available. In addition, to the extent ECA's customers
or ECA became dependent on interruptible service, and to the extent that either pipeline receives requests for service that exceed the capacity of the pipeline, the pipeline will honor requests by its
firm customers first, and will then allocate remaining capacity, if any, to interruptible shippers. As a result, ECA or its customers may be unable to obtain all or a part of any requested
interruptible capacity service on the transportation pipelines. Any inability of ECA or its customers to procure sufficient capacity to transport the natural gas gathered on its Greene County
Gathering System will decrease and/or delay the receipt of any proceeds that may be associated with natural gas production from wells on the Underlying Properties. In addition, any increase in
transportation rates paid by ECA for production attributable to the Trust's interests will decrease the proceeds received by the Trust.

Shortages or increases in costs of equipment, services and qualified personnel could delay the drilling of the PUD Wells and result in a reduction in the amount of cash
available for distribution.

The demand for qualified and experienced personnel to conduct field operations, geologists, geophysicists, engineers and other
professionals in the natural gas industry can fluctuate significantly, often in correlation with oil and natural gas prices, causing periodic shortages. Historically, there have been shortages of
drilling rigs and other equipment as demand for rigs and equipment has increased along with the number of wells being drilled. These factors also cause significant increases in costs for equipment,
services and personnel. Higher natural gas prices generally stimulate demand and result in increased prices for drilling rigs, crews and associated supplies, equipment and services. Shortages of field
personnel and equipment or price increases could significantly hinder ECA's ability to perform the drilling obligations and delay completion of the development wells, which would reduce future
distributions to Trust unitholders.

Due to the Trust's lack of industry and geographic diversification, adverse developments in the Trust's existing area of operation could adversely impact its financial
condition, results of operations and cash flows and reduce its ability to make distributions to the unitholders.

The Underlying Properties will be operated for natural gas production only and are focused exclusively in the Marcellus Shale formation
in Greene County, Pennsylvania. In particular, the concentration of the Underlying Properties in the Marcellus Shale formation in Greene County, Pennsylvania could disproportionately expose the
Trust's interests to operational and regulatory risk in that area. Due to the lack of diversification in industry type and location of the Trust's interests, adverse developments in the natural gas
market or the area of the Underlying Properties could have a significantly greater impact on the Trust's financial condition, results of operations and cash flows than if the Trust's royalty interests
were more diversified.

The Trust units may lose value as a result of title deficiencies with respect to the Underlying Properties.

The existence of a material title deficiency with respect to the Underlying Properties can reduce the value or render a property
worthless, thus adversely affecting the distributions to unitholders. ECA does not obtain title insurance covering mineral leaseholds. Additionally, undeveloped acreage has greater risk of title
defects than developed acreage.

Consistent
with industry practice, ECA has not obtained a preliminary title review on the PUD Wells. Prior to the drilling of a PUD Well, ECA intends to obtain a preliminary title review
to ensure there are no obvious defects in title to the leasehold. Frequently, as a result of such examinations, certain curative work must be done to correct defects in the marketability of the title,
and such curative

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work
entails expense. ECA's failure to cure any title defects may render some locations undrillable and cause ECA to lose its rights to production from the Underlying Properties. In the event of such
a material title problem, proceeds available for distribution to unitholders and the value of the Trust units may be reduced.

The Trust is passive in nature and has no stockholder voting rights in ECA, managerial, contractual or other ability to influence ECA, or control over the field operations
of, sale of natural gas from, or development of, the Underlying Properties.

Trust unitholders have no voting rights with respect to ECA and therefore will have no managerial, contractual or other ability to
influence ECA's activities or operations of the gas properties. In addition, pursuant to the Administrative Services Agreement and the Development Agreement, up to 10% of the PUD Wells may be operated
by third parties unrelated to ECA until completion of ECA's drilling obligation, after which ECA may transfer operations of any or all of the Trust properties. Such third party operators may not have
the operational expertise of ECA within the AMI. Gas properties are typically managed pursuant to an operating agreement among the working interest owners in the properties. The typical operating
agreement contains procedures whereby the owners of the working interests in the property designate one of the interest owners to be the operator of the property. Under these arrangements, the
operator is typically responsible for making all decisions relating to drilling activities, sale of production, compliance with regulatory requirements and other matters that affect the property.
Neither the Trustee nor the Trust unitholders has any contractual ability to influence or control the field operations of, sale of natural gas from, or future development of, the Underlying
Properties. The Trust units are a passive investment that entitle the Trust unitholder to only receive cash distributions from the royalty interests and hedging contracts that have been established
for the benefit of the Trust.

ECA may sell all or a portion of the Underlying Properties, subject to and burdened by the Royalties, after satisfying its drilling obligations to the Trust; any such
purchaser could have a weaker financial position and/or be less experienced in natural gas development and production than ECA.

Trust unitholders will not be entitled to vote on any sale of the Underlying Properties if the Underlying Properties are sold subject
to and burdened by the Royalties and the Trust will not receive any proceeds from any such sale. The purchaser would be responsible for all of ECA's obligations relating to the Royalties on the
portion of the Underlying Properties sold, and ECA would have no continuing obligation to the Trust for those properties. Additionally, ECA may enter into farmout or joint venture arrangements with
respect to the wells burdened by the Royalties. Any purchaser, farmout counterparty or joint venture partner could have a weaker financial position and/or be less experienced in natural gas
development and production than ECA.

The natural gas reserves estimated to be attributable to the Underlying Properties of the Trust are depleting assets and production from those reserves will diminish over
time. Furthermore, the Trust is precluded from acquiring other oil and gas properties or royalty interests to replace the depleting assets and production.

The proceeds payable to the Trust from the Royalties are derived from the sale of the production of natural gas from the Underlying
Properties. The natural gas reserves attributable to the Underlying Properties are depleting assets, which means that the reserves of natural gas attributable to the Underlying Properties will decline
over time. As a result, the quantity of natural gas produced from the Underlying Properties will decline over time. Based on the estimated production volumes in the original reserve report described
in the Prospectus, the gas production from proved producing reserves attributable to the PDP Royalty Interest is projected to decline at an average rate of approximately 8.5% per year over the life of
the Trust. As a PUD Well is drilled and placed on production, the

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production
rate is expected to decline approximately 37.3% during the first year of production, approximately 14.7% during the next three to five years of production and approximately 8.0% per year
for the remainder of the economically productive life of the well. These production characteristics are generally consistent with other development wells in the AMI. The anticipated rate of decline is
an estimate and actual decline rates may vary from those estimated.

Future
maintenance may affect the quantity of proved reserves that can be economically produced from the Underlying Properties to which the wells relate. The timing and size of these
projects will depend on, among other factors, the market prices of natural gas. With the exception of ECA's commitment to drill the PUD Wells, ECA has no contractual obligation to make capital
expenditures on the Underlying Properties in the future. Furthermore, for properties on which ECA is not designated as the
operator, ECA has no control over the timing or amount of those capital expenditures. ECA also has the right to non-consent and not participate in the capital expenditures on properties
for which it is not the operator, in which case ECA and the Trust will not receive the production resulting from such capital expenditures. If ECA or other operators of the wells to which the
Underlying Properties relate do not implement maintenance projects when warranted, the future rate of production decline of proved reserves may be higher than the rate currently expected by ECA or
estimated in the reserve report.

The
Trust Agreement provides that the Trust's business activities are limited to owning the Royalties and any activity reasonably related to such ownership, including activities required
or permitted by the terms of the conveyances related to the Royalties. As a result, the Trust is not permitted to acquire other oil and gas properties or royalty interests to replace the depleting
assets and production attributable to the Trust.

The amount of cash available for distribution by the Trust will be reduced by the amount of post-production costs, applicable taxes associated with the Trust's
interest, Trust expenses, incentive distributions and reimbursement obligations payable to ECA.

The Royalties and the Trust bear certain costs and expenses that reduce the amount of cash received by or available for distribution by
the Trust to the holders of the Trust units. These costs and expenses include those described below.



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The
amount of costs and expenses that will be borne by the Trust may vary materially from quarter-to-quarter. The extent by which the costs and expenses described
above are higher or lower in any quarter will directly decrease or increase the amount received by the Trust and available for distribution to the unitholders. For a further summary of
post-production costs and applicable taxes for the producing lives of the Producing Wells and PUD Wells, see "The underlying properties" of the Prospectus. Historical
post-production costs and taxes, however, may not be indicative of future post-production costs and taxes.

A decrease in the differential between the price realized by ECA for natural gas produced from the Underlying Properties and the NYMEX or other benchmark price of natural
gas could reduce the proceeds to the Trust and therefore the cash distributions by the Trust and the value of Trust units.

The prices received for ECA's natural gas production usually exceed the relevant benchmark prices, such as NYMEX, that are used for
calculating hedge positions. The difference between the price received and the benchmark price is called a basis differential. The differential may vary significantly due to market conditions, the
quality and location of production and other factors. ECA cannot accurately predict natural gas differentials. Decreases in the differential between the realized price of natural gas and the benchmark
price for natural gas could reduce the proceeds to the Trust and therefore the cash distributions by the Trust and the value of the Trust units.

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ECA has entered into natural gas floor price contracts for the benefit of the Trust and has entered into a back-to-back swap agreement with the Trust
that cover only a portion of the estimated natural gas production attributable to the Royalties, and such hedging arrangements will terminate after March 31, 2014. The Trust's receipt of any
payments due based on these natural gas hedging contracts depends upon the financial position of the hedge contract counterparties. A default by any of the hedge contract counterparties could reduce
the amount of cash available for distribution to the Trust unitholders.

Fifty percent of the estimated natural gas production attributable to the Royalties is hedged from April 1, 2010 through
March 31, 2014. As a result, the remaining 50% of estimated production through March 31, 2014 and all production after such date will not be hedged to protect against the price risks
inherent in holding interests in natural gas, a commodity that is frequently characterized by significant price volatility. Furthermore, while the use of hedging transactions limits the downside risk
of price declines, swaps may also limit the Trust's ability to realize cash flow from natural gas price increases on the portion of the production attributable to the Royalties that is hedged. The
Trust will not have any ability to terminate the swaps before the expiration date.

The
Trust's counterparties under the natural gas floor price contracts are Wells Fargo Foothill, Inc. and BP Energy Company, and its counterparty under the
back-to-back swap agreement is ECA, whose counterparties are also Wells Fargo Foothill, Inc. and BP Energy Company. In the event that any of the counterparties to the natural
gas hedging contracts default on their obligations to make payments to the Trust under the hedge contracts, the cash distributions to the Trust unitholders would likely be materially reduced as the
hedge payments are intended to provide additional cash to the Trust during periods of lower natural gas prices. ECA has no continuing obligation with respect to the natural gas floor price contracts.
However, ECA is the Trust's
counterparty under the back-to-back swap agreement and has continuing obligations with respect to this agreement.

Natural gas wells are subject to operational hazards that can cause substantial losses. ECA maintains insurance; however, ECA may not be adequately insured for all such
hazards.

There are a variety of operating risks inherent in natural gas production and associated activities, such as fires, leaks, explosions,
mechanical problems, major equipment failures, blow-outs, uncontrollable flow of natural gas, water or drilling fluids, casing collapses, abnormally pressurized formations and natural
disasters. The occurrence of any of these or similar accidents that temporarily or permanently halt the production and sale of natural gas at any of the Underlying Properties will reduce Trust
distributions by reducing the amount of proceeds available for distribution.

Additionally,
if any of such risks or similar accidents occur, ECA could incur substantial losses as a result of injury or loss of life, severe damage or destruction of property, natural
resources and equipment, regulatory investigation and penalties and environmental damage and clean-up responsibility. If ECA experiences any of these problems, its ability to conduct
operations and perform its obligations to the Trust could be adversely affected. While ECA intends to obtain and maintain insurance coverage it deems appropriate for these risks with respect to the
Underlying Properties, ECA's operations may result in liabilities exceeding such insurance coverage or liabilities not covered by insurance. If a well is damaged, ECA would have no obligation to drill
a replacement well or make the Trust whole for the loss.

The subordination of certain Trust units held by ECA does not assure that unitholders will in fact receive any specified return on an investment in the Trust.

Although ECA will not be entitled to receive any distribution on its subordinated units unless there is enough cash for all of the
common units to receive a distribution equal to the subordination threshold for such quarter (which is equal to 80% of the target distribution level for the corresponding quarter), the subordinated
units constitute only a 25% interest in the Trust, and this feature does not

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guarantee
that common units will receive a distribution equal to the subordination threshold, or any distribution at all. Additionally, the subordination period will terminate and the subordinated
units will convert into common units four quarters following ECA's completion of its drilling obligation. Depending on the prices at which ECA is able to sell volumes attributable to the Trust, the
common units may receive a distribution that is below the subordination threshold.

Estimates of future cash distributions to unitholders, subordination thresholds and incentive thresholds are based on assumptions that are inherently subjective and are
subject to significant business, economic, financial, legal, regulatory and competitive risks and uncertainties that could cause actual cash distributions to differ materially from those estimated.

The estimates of target distributions to unitholders, subordination thresholds and incentive thresholds, as set forth in Item 1
of this report under the caption "Target Distributions and Subordination and Incentive Thresholds," are based on ECA's calculations, and ECA has not received an opinion or report on such calculations
from any independent accountants. Such calculations are based on assumptions about drilling, production, natural gas prices, hedging activities, capital expenditures, expenses, and other matters that
are inherently uncertain and are subject to significant business, economic, financial, legal, regulatory and competitive risks and uncertainties that could cause actual results to differ materially
from those estimated. In particular, these estimates have assumed that natural gas production is sold at prices consistent with settled NYMEX pricing for April, May and June 2010 of $3.842, $4.271 and
$4.155 per MMBtu, respectively, and NYMEX forward pricing as of June 4, 2010 for the thirty three month period ending March 31, 2013 and increased thereafter by a 2.5% annual escalator
(as adjusted for a basis differential of $0.15 per MMBtu escalated at 2.5% annually starting in the second quarter of 2013), capped at $9.00 per MMBtu starting in 2027; however, actual sales prices
may be significantly lower. Additionally, these estimates assume that the PUD Wells will be drilled on ECA's current anticipated schedule and the related Underlying Properties will achieve production
volumes set forth in the reserve report; however, the drilling of the PUD Wells may be delayed and actual production volumes may be significantly lower.

Furthermore,
the subordination thresholds for each quarter during the subordination period do not represent distributions you should expect to receive. To the extent actual cash
distributions differ materially from those set forth in the estimates underlying target distributions, the actual distributions you receive may be lower than the target distribution and the
subordination threshold for the applicable quarter. A cash distribution to Trust unitholders below the target distribution amount or the subordination threshold may materially adversely affect the
market price of the Trust units.

The Trustee may, under certain circumstances, sell the Royalties and dissolve the Trust. The Trust will begin to terminate following the end of the 20-year
period in which the Trust owns the Term Royalties.

The Trustee must sell the Royalties if unitholders approve the sale or vote to dissolve the Trust. The Trustee must also sell the
Royalties if the gross proceeds to the Trust attributable to the Royalties and hedge agreements (after deducting any amounts owed to ECA pursuant to the natural gas swap agreements) are less than
$1.5 million for any four consecutive quarters. Sale of all the Royalties will result in the dissolution of the Trust. The net proceeds of any such sale will be distributed to the Trust
unitholders. The Trust will begin to liquidate on the Termination Date. The Trust unitholders will not be entitled to receive any proceeds from the sale of production from the Underlying Properties
following such date. The Term Royalties will automatically revert to ECA at the Termination Date, while the Perpetual Royalties will be sold and the proceeds will be distributed to the unitholders
(including ECA to the extent of any Trust units it owns) at the Termination Date or soon thereafter. ECA will have a right of first refusal to purchase the Perpetual Royalties at the Termination Date.
A more detailed description of this right of first refusal is set forth in the Prospectus under the caption "The Trust."

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ECA may sell Trust units in the public or private markets, and such sales could have an adverse impact on the trading price of the common units.

ECA holds an aggregate of 3,001,733 common units and 4,401,250 subordinated units. All of the subordinated units will automatically
convert into common units at the end of the subordination period, which is currently expected to occur on April 1, 2014. ECA may sell Trust units in the public or private markets, and any such
sales could have an adverse impact on the price of the common units or on any trading market that may develop. The Trust has granted registration rights to ECA which, if exercised, would facilitate
sales of common units by such holders.

Conflicts of interest could arise between ECA and the Trust unitholders.

As a working interest owner in the Underlying Properties, ECA could have interests that conflict with the interests of the Trust and
the Trust unitholders. For example:



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The Trust is managed by a Trustee who cannot be replaced except at a special meeting of Trust unitholders.

The business and affairs of the Trust are managed by the Trustee. Your voting rights as a Trust unitholder are more limited than those
of stockholders of most public corporations. For example, there is no requirement for annual meetings of Trust unitholders or for an annual or other periodic re-election of the Trustee.
The Trust Agreement provides that the Trustee may only be removed and replaced by the holders of a majority of the outstanding Trust units, including Trust units held by ECA, at a special meeting of
Trust unitholders called by either the Trustee or the holders of not less than 10% of the outstanding Trust units. As a result, it will be difficult for public unitholders to remove or replace the
Trustee without the cooperation of ECA (so long as it holds a significant percentage of total Trust units) or other holders of a substantial percentage of the outstanding Trust units.

Trust unitholders have limited ability to enforce provisions of the Royalties, and ECA's liability to the Trust is limited.

The Trust Agreement permits the Trustee and the Trust to sue ECA or any other future owner of the Underlying Properties to enforce the
terms of the conveyances creating the PDP and PUD Royalty Interests. If the Trustee does not take appropriate action to enforce provisions of these conveyances, Trust unitholders' recourse would be
limited to bringing a lawsuit against the Trustee to compel the Trustee to take specified actions. The Trust Agreement expressly limits a Trust unitholder's ability to directly sue ECA or any other
third party other than the Trustee. As a result, Trust unitholders will not be able to sue ECA or any future owner of the Underlying Properties to enforce these rights. Furthermore, the royalty
interest conveyances provide that, except as set forth in the conveyances, ECA will not be liable to the Trust for the manner in which it performs its duties in operating the Underlying Properties as
long as it acts in good faith.

Courts outside of Delaware may not recognize the limited liability of the Trust unitholders provided under Delaware law.

Under the Delaware Statutory Trust Act, Trust unitholders will be entitled to the same limitation of personal liability extended to
stockholders of corporations under the General Corporation Law of the State of Delaware. No assurance can be given, however, that the courts in jurisdictions outside of Delaware will give effect to
such limitation.

ECA is subject to complex federal, state, local and other laws and regulations that could adversely affect the cost, manner or feasibility of conducting its operations or
expose ECA to significant liabilities.

ECA's natural gas exploration, production and transportation operations are subject to complex and stringent laws and regulations. In
order to conduct its operations in compliance with these laws and regulations, ECA must obtain and maintain numerous permits, drilling bonds, approvals and certificates from various federal, state and
local governmental authorities and engage in extensive reporting. ECA may incur substantial costs in order to maintain compliance with these existing laws and regulations. Further, in light of the
explosion and fire on the drilling rig Deepwater Horizon in the Gulf of Mexico, as well as recent incidents involving the release of natural gas and fluids as a result of drilling activities in the
Marcellus Shale, there has been a variety of regulatory initiatives at the federal and state level to restrict oil and gas drilling operations in certain locations. Any increased regulation or
suspension of oil and gas exploration and production, or revision or reinterpretation of existing laws and regulations, that arises out of these incidents or otherwise could result in delays and
higher

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operating
costs. Such costs or significant delays could have a material adverse effect on ECA's business, financial condition and results of operations. ECA must also comply with laws and regulations
prohibiting fraud and market manipulations in energy markets. To the extent ECA is a shipper on interstate pipelines, it must comply with the tariffs of such pipelines and with federal policies
related to the use of interstate capacity.

Laws
and regulations governing natural gas exploration and production may also affect production levels. ECA is required to comply with federal and state laws and regulations governing
conservation matters, including provisions related to the unitization or pooling of the natural gas properties; the establishment of maximum rates of production from natural gas wells; the spacing of
wells; the plugging and abandonment of wells; and removal of related production equipment. These and other laws and regulations can limit the amount of natural gas ECA can produce from its wells,
limit the number of wells it can drill, or limit the locations at which it can conduct drilling operations, which in turn could
negatively impact Trust distributions, estimated and actual future net revenues to the Trust and estimates of reserves attributable to the Trust's interests.

New
laws or regulations, or changes to existing laws or regulations may unfavorably impact ECA, could result in increased operating costs and have a material adverse effect on ECA's
financial condition and results of operations. For example, Congress is currently considering legislation that, if adopted in its proposed form, would subject companies involved in natural gas and oil
exploration and production activities to, among other items the elimination of most U.S. federal tax incentives and deductions available to natural gas exploration and production activities, and the
prohibition or additional regulation of private energy commodity derivative and hedging activities. Additionally, the Pennsylvania Environmental Quality Board has proposed amendments to Pennsylvania's
oil and gas regulations to update existing requirements regarding the drilling, casing, cementing, testing, monitoring and plugging of oil and gas wells, and the protection of water supplies,
including reporting the list of chemicals used in hydraulic fracturing or to stimulate the well.

Additionally,
state and federal regulatory authorities may expand or alter applicable pipeline safety laws and regulations, compliance with which may require increased capital costs on
the part of ECA and third party downstream natural gas transporters. These and other potential regulations could increase ECA's operating costs, reduce ECA's liquidity, delay ECA's operations,
increase direct and third party post production costs associated with the Trust's interests or otherwise alter the way ECA conducts its business, which could have a material adverse effect on ECA's
financial condition, results of operations and cash flows and which could reduce cash received by or available for distribution, including any amounts paid by ECA for transportation on downstream
interstate pipelines.

The ability of ECA to satisfy its obligations to the Trust depends on the financial position of ECA, and in the event of a default by ECA in its obligation to drill the PUD
Wells, or in the event of ECA's bankruptcy, it may be expensive and time-consuming for the Trust to exercise its remedies.

ECA is a privately held, independent energy company engaged in the exploration, development, production, gathering and aggregation and
sale of natural gas and oil, primarily in the Appalachian Basin, Gulf Coast and Rocky Mountain regions in the United States and in New Zealand. Pursuant to the terms of the Development Agreement, ECA
is obligated to drill the PUD Wells at its own expense. ECA is also the operator of all of the Producing Wells and has agreed to operate substantially all of the PUD Wells until completion of its
drilling obligation. The conveyances also provide that ECA is obligated to market, or cause to be marketed, the natural gas production related to the Underlying Properties. Additionally, ECA is the
counterparty to the Trust's swap agreement and has continuing obligations with respect to this agreement. Due to the Trust's reliance on ECA to fulfill these numerous obligations, the value of the
Royalties and its ultimate cash available for distribution will be highly dependent on ECA's performance. ECA is not a reporting company and does not file periodic reports

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with
the SEC. Therefore, as a Trust unitholder, you do not have access to financial information of ECA.

The
ability of ECA to perform these obligations will depend on ECA's future financial condition and economic performance and access to capital, which in turn will depend upon the supply
and demand for natural gas and oil, prevailing economic conditions and financial, business and other factors, many of which are beyond the control of ECA. See "Information about Energy Corporation of
America" found on page ECA-1 of the Prospectus for additional information relating to ECA, including information relating to the business of ECA, historical financial statements of ECA and
other financial information relating to ECA.

In
the event that ECA defaults on its obligation to drill the PUD Wells, the Trust's remedy would be to foreclose on the Trust's Drilling Support Lien on all of ECA's remaining interests
in the AMI to recover the security interest in the amount of $91 million, which amount will be reduced proportionately as each PUD Well is drilled. The process of foreclosing on such collateral
may be expensive and time-consuming and delay the drilling and completion of the PUD Wells; such delays and expenses would reduce Trust distributions by reducing the amount of proceeds
available for distribution. The amount of the security interest recovered is required to be applied to completion of the drilling obligations of ECA, will not result in any distribution to the Trust
unitholders and may be insufficient to drill the number of wells needed for the Trust to realize the full value of the PUD Royalty Interest. Furthermore, the Trust would have to seek a new party to
perform the drilling and operations of the wells. The Trust may not be able to find a replacement driller or operator, and it may not be able to enter into a new agreement with such replacement party
on favorable terms within a reasonable period of time.

Due
to uncertainty under the laws of Pennsylvania, there is a risk that the Royalties conveyed by ECA to the Trust would not be treated as real property interests, or interests in
hydrocarbons in place or to be produced. As a result, the Royalties might be treated as unsecured claims of the Trust against ECA in the event of ECA's bankruptcy. The Royalty Interest Lien is
intended to provide security to the Trust should the Royalties be subject to such a challenge. If the PDP Royalty Interest or the PUD Royalty Interest were determined not to be a real property
interest owned by the Trust, the Trust's remedy would be to foreclose on the Trust's Royalty Interest Lien to cause the Trust to receive a volume of natural gas production from the Trust properties
calculated in accordance with the provisions of the conveyances of the Royalties to the Trust. Foreclosure on the Royalty Interest Lien is exercisable only following a bankruptcy filing of ECA or its
successor and based on an uncured payment default occurring under the conveyances of the Royalties to the Trust existing at the time of, or occurring after, such bankruptcy filing. Similar to the
Drilling Support Lien, the process of foreclosing to enforce the Royalty Interest Lien may be expensive and time-consuming; and the resulting delays and expenses would reduce Trust
distributions by reducing the amount of proceeds available for distribution.

The
proceeds of the Royalties may be commingled, for a period of time, with proceeds of ECA's retained interest. It is possible that the Trust may not have adequate facts to trace its
entitlement to funds in the commingled pool of funds and that other persons may, in asserting claims against ECA's retained interest, be able to assert claims to the proceeds that should be delivered
to the Trust. In addition, during a bankruptcy of ECA, it is possible that payments of the royalties may be delayed or deferred. It is also possible that the obligation to pay royalties will be
disaffirmed or cancelled. In either situation, the Trust may need to look to the Royalty Interest Lien to replace its rights under the Royalties. During the pendency of ECA's bankruptcy proceedings,
the Trust's ability to foreclose on the Drilling Support Lien or the Royalty Interest Lien, and the ability to collect cash payments from customers being held in ECA's accounts that are attributable
to production from the Trust properties, may be stayed by the bankruptcy court. Delay in realizing on the collateral for the Drilling Support Lien and the Royalty Interest Lien is possible, and it
cannot be guaranteed that a bankruptcy court would permit such foreclosure. It is possible that the bankruptcy would also delay the execution of a

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new
agreement with another driller or operator. If the Trust enters into a new agreement with a drilling or operating partner, the new partner might not achieve the same levels of production or sell
natural gas at the same prices as ECA was able to achieve.

ECA's performance of its drilling obligations to the Trust and the financial results of the Trust may not be as successful as the drilling and financial results of Eastern
American Natural Gas Trust or ECA's other royalty interest ventures.

As disclosed in the Prospectus, ECA previously sponsored the formation of Eastern American Natural Gas Trust, and ECA has previously
sold term royalty interests in a separate transaction to private investors. The historical results of operations and performance of the
Eastern American Natural Gas Trust should not be relied on as an indicator of how this Trust will perform.

The operations of ECA are subject to environmental laws and regulations that may result in significant costs and liabilities.

The natural gas exploration and production operations of ECA in the Marcellus Shale are subject to stringent and comprehensive federal,
state and local laws and regulations governing the discharge of materials into the environment or otherwise relating to environmental protection. These laws and regulations may impose numerous
obligations that are applicable to ECA's operations including the acquisition of a permit before conducting drilling; water withdrawal or waste disposal activities; the restriction of types,
quantities and concentration of materials that can be released into the environment; the limitation or prohibition of drilling activities on certain lands lying within wilderness, wetlands and other
protected areas; and the imposition of substantial liabilities for pollution resulting from operations. Numerous governmental authorities, such as the U.S. Environmental Protection Agency ("EPA") and
analogous state agencies, have the power to enforce compliance with these laws and regulations and the permits issued under them, often requiring difficult and costly actions. Failure to comply with
these laws and regulations may result in the assessment of administrative, civil or criminal penalties; the imposition of investigatory or remedial obligations; and the issuance of injunctions
limiting or preventing some or all of ECA's operations.

There
is inherent risk of incurring significant environmental costs and liabilities in the performance of ECA's operations due to its handling of petroleum hydrocarbons and wastes,
because of air emissions and wastewater discharges related to its operations, and as a result of historical industry operations and waste disposal practices. Under certain environmental laws and
regulations, ECA could be subject to joint and several strict liability for the removal or remediation of previously released materials or property contamination regardless of whether ECA was
responsible for the release or contamination or if the operations were not in compliance with all applicable laws at the time those actions were taken. Private parties, including the owners of
properties upon which ECA's wells are drilled and facilities where ECA's petroleum hydrocarbons or wastes are taken for reclamation or disposal may also have the right to pursue legal actions to
enforce compliance, as well as to seek damages for non-compliance with environmental laws and regulations or for personal injury or property damage or to recover some or all of the costs
of the removal or remediation of released materials. In addition, the risk of accidental spills or releases could expose ECA to significant liabilities that could have a material adverse effect on its
financial condition or results of operations. Changes in environmental laws and regulations occur frequently, and any changes that result in more stringent or costly waste handling, storage,
transport, disposal or cleanup requirements could require ECA to make significant expenditures to attain and maintain compliance and may otherwise have a material adverse effect on its results of
operations, competitive position or financial condition. ECA may not be able to recover some or any of these costs from insurance. As a result of the increased cost of compliance, ECA may decide to
discontinue drilling. Additionally, permitting delays may inhibit ECA's ability to drill the PUD Wells on schedule.

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Climate change laws and regulations restricting emissions of "greenhouse gases" could result in increased operating costs and reduced demand for the natural gas that ECA
produces while the physical effects of climate change could disrupt ECA's production and cause ECA to incur significant costs in preparing for or responding to those effects.

On December 15, 2009, the EPA published its findings that emissions of carbon dioxide, methane and other greenhouse gases
("GHGs") present a danger to public health and the environment. These findings allow the agency to adopt and implement regulations that would restrict emissions of GHGs under existing provisions of
the federal Clean Air Act. Accordingly, the EPA has adopted regulations that could trigger permit review for GHG emissions from certain stationary sources. The EPA has also issued regulations that
require the establishment and reporting of an inventory of GHG emissions from specified stationary sources, including certain onshore oil and natural gas exploration, development and production
facilities. At the state level, more than one-third of the states, either individually or through multi-state regional initiatives, already have begun implementing legal measures to reduce
emissions of GHGs. The adoption and implementation of any regulations imposing reporting obligations on, or limiting emissions of GHGs from, ECA's equipment and operations could require ECA to incur
costs to reduce emissions of GHGs associated with its operations or could adversely affect demand for the natural gas that it produces. Finally, it should be noted that some scientists have concluded
that increasing concentrations of greenhouse gases in the Earth's atmosphere may produce climate changes that have significant physical effects, such as increased frequency and severity of storms,
droughts, and floods and other climatic events; if any such effects were to occur, they could have an adverse effect on ECA's assets and operations.

Federal and state legislative and regulatory initiatives relating to hydraulic fracturing could result in increased costs and additional operating restrictions or delays as
well as adversely affect ECA's services.

Hydraulic fracturing is an important and commonly used process for the completion of natural gas wells, and to a lesser extent, oil
wells, in formations with low permeabilities, such as shale formations, and involves the pressurized injection of water, sand and chemicals into rock formations to stimulate natural gas production.
Various state and local governments are considering increased regulatory oversight of hydraulic fracturing through additional permit requirements, operational restrictions and temporary or permanent
bans on hydraulic fracturing in certain environmentally sensitive areas such as watersheds. For instance, the New York Department of Environmental Conservation announced in April 2010 that the
watersheds relied upon by New York City and Syracuse as sources of drinking water would be excluded from the pending generic environmental review process, thereby requiring natural gas operators
seeking to drill in either of the watersheds, which are located in the Marcellus Shale region, to pursue a case-by-case environmental review to establish whether appropriate
measures to mitigate potential impacts can be developed. The Pennsylvania Environmental Quality Board has proposed amendments to Pennsylvania's oil and gas regulations to require, among other things,
additional information in the stimulation record including water source identification and volume as well as a list of chemicals used to stimulate the well, including chemicals used in hydraulic
fracturing. Moreover, the Pennsylvania Department of Environmental Protection has adopted a new permitting policy concerning surface water discharges from wastewater treatment facilities handling
flowback fluids and produced waters from oil and gas well sites that could result in increased requirements for treatment of these fluids and limitations on their discharge to receiving waters. The
adoption of the any other federal or state laws or regulations imposing reporting obligations on, or otherwise limiting, the hydraulic fracturing process could make it more difficult for ECA to
complete natural gas wells in the Marcellus Shale as well as increase its costs of compliance and doing business. Moreover, on March 18, 2010, the EPA announced that it has allocated
$1.9 million in 2010 and has requested funding in fiscal year 2011 for conducting a comprehensive research study on the potential adverse impacts that hydraulic fracturing may have on water
quality and public health. The results of such a study, once completed, could further spur action towards federal legislation and regulation of hydraulic fracturing

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activities.
If ECA is unable to remove and dispose of water at a reasonable cost and within applicable environmental rules, ECA's ability to produce gas commercially and in commercial quantities from
the Underlying Properties could be impaired.

Tax Risks Related to the Trust's Common Units

The Trust's tax treatment depends on its status as a partnership for United States federal income tax purposes. At the inception of the Trust, the Trust received an opinion
from tax counsel that the Trust will be treated as a partnership for United States federal income tax purposes. If the Internal Revenue Service were to treat the Trust as a corporation for United
States federal income tax purposes, then its cash available for distribution to you would be substantially reduced.

The anticipated after-tax economic benefit of an investment in the Trust units depends largely on the Trust being treated
as a partnership for federal income tax purposes. At the inception of the Trust, ECA and the Trust received an opinion from tax counsel that the Trust will be treated as a partnership for United
States federal income tax purposes. In order for the Trust to be treated as a partnership for United States federal income tax purposes, current law requires that 90% or more of our gross income for
every taxable year consist of "qualifying income," as defined in Section 7704 of the Internal Revenue Code. The Trust may not meet this requirement or current law may change so as to cause, in
either event, the Trust to be treated as a corporation for United States federal income tax purposes or otherwise subject the Trust to taxation as an entity. Although the Trust does not believe based
upon its current activities that it is so treated, a change in current law could cause it to be treated as a corporation for federal income tax purposes or otherwise subject it to taxation as an
entity. The Trust has not requested, and does not plan to request, a ruling from the Internal Revenue Service, which we referred to as the IRS, on this or any other tax matter affecting it.

If
the Trust was treated as a corporation for federal income tax purposes, it would pay United States federal income tax on its taxable income at the corporate tax rate, which is
currently a maximum of 35%, and would likely be required to pay state income tax. Distributions to you would generally be taxed again as corporate distributions, and no income, gains, losses,
deductions or credits would flow through to you. Because a tax would be imposed upon the Trust as a corporation, its cash available for distribution to you would be substantially reduced. Therefore,
treatment of the Trust as a corporation would result in a material reduction in the anticipated cash flow and after-tax return to you, likely causing a substantial reduction in the value
of the Trust units.

The
Trust Agreement provides that if a law is enacted or existing law is modified or interpreted in a manner that subjects the Trust to taxation as a corporation or otherwise subjects it
to entity-level taxation for United States federal income tax purposes, the target distribution amounts may be adjusted to reflect the impact of that law on the Trust.

If the Trust were subjected to a material amount of additional entity-level taxation by Pennsylvania or any other states, the Trust's cash available for distribution to you
would be reduced.

The Trust will be required to pay Pennsylvania franchise tax on its capital stock value, as determined pursuant to the statute and
apportioned to Pennsylvania. The current tax rate of 0.289% is currently scheduled to be reduced to 0.189% in 2012 and 0.089% in 2013 and to be completely phased out in 2014. This schedule may be
altered and the taxes left in place subject to the General Assembly in its annual budget process. Changes in current state law may subject the Trust to additional entity-level taxation by Pennsylvania
or other states. Because of widespread state budget deficits and other reasons, several states are evaluating ways to subject partnerships to entity-level taxation through the imposition of state
income, franchise and other forms of taxation. Imposition of any additional taxes on the Trust may substantially reduce the cash available for distribution to you and, therefore, negatively impact the
value of an investment in the Trust units.

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The
Trust Agreement provides that if a law is enacted or existing law is modified or interpreted in a manner that subjects the Trust to additional amounts of entity-level taxation for
state or local income tax purposes, the target distribution amounts may be adjusted to reflect the impact of that law on the Trust.

Recently proposed severance taxes in Pennsylvania could, if enacted, materially increase the applicable taxes that are borne by the Trust.

Although Pennsylvania has historically not imposed a severance tax on the production of natural gas, the Pennsylvania House recently
introduced legislation that would have imposed a severance tax of 5% of the value of natural gas at the wellhead plus $0.046 per thousand feet of natural gas severed. If this legislation or any future
severance tax legislation is adopted, any such severance tax would be a cost that would be borne by the Trust and could materially reduce distributions to unitholders.

The
Trust Agreement provides that if a law is enacted or existing law is modified or interpreted in a manner that subjects the Trust to additional amounts of entity-level taxation for
state or local income tax purposes, the target distribution amounts may be adjusted to reflect the impact of that law on the Trust.

The tax treatment of publicly traded partnerships or an investment in our Trust units could be affected by recent and potential legislative, judicial or administrative
changes and differing interpretations, possibly on a retroactive basis.

The current United States federal income tax treatment of publicly traded partnerships, including the Trust, or an investment in the
Trust units, may be modified by administrative, legislative or judicial interpretation at any time. For example, members of Congress previously considered substantive changes to the existing United
States federal income tax laws that affect certain publicly traded partnerships. Any modification to the United States federal income tax laws or interpretations thereof could make it difficult or
impossible to meet the requirements for the Trust to be treated as a partnership for United States federal income tax purposes, affect or cause us to change our business activities, affect the tax
considerations of an investment in the Trust, change the character or treatment of portions of the Trust income and adversely affect an investment in the Trust's units. Moreover, any modification to
the United States federal income tax laws and interpretations thereof may or may not be applied retroactively. Although the previously proposed legislation would not appear to affect the Trust's tax
treatment as a partnership, we are unable to predict whether any of these changes, or other proposals, will ultimately be enacted. Any potential change in law or interpretation thereof could
negatively impact the value of an investment in the Trust units.

Under
current law, the highest marginal U.S. federal income tax rate applicable to ordinary income of individuals is 35% and the highest marginal U.S. federal income tax rate applicable
to long-term capital gains (generally, capital gains on certain assets held for more than 12 months) of individuals is 15%. However, absent new legislation extending the current
rates, beginning January 1, 2013, the highest marginal U.S. federal income tax rate applicable to ordinary income and long-term capital gains of individuals will increase to 39.6%
and 20%, respectively. Moreover, these rates are subject to change by new legislation at any time.

The
recently enacted Patient Protection and Affordable Care Act of 2010, as amended by the Health Care and Education Reconciliation Act of 2010, is scheduled to impose a 3.8% Medicare
tax on certain net investment income from a variety of sources earned by individuals for taxable years beginning after December 31, 2012. For these purposes, net investment income generally
includes a Trust unitholder's allocable share of the Trust income and gain realized by a Trust unitholder from a sale of the Trust units. The tax will be imposed on the lesser of (i) the Trust
unitholder's net income from all investments, or (ii) the amount by which the Trust unitholder's adjusted gross income exceeds

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$250,000
(if the Trust unitholder is married and filing jointly) or $200,000 (if the Trust unitholder is unmarried).

The Trust prorates items of income, gain, loss and deduction between transferors and transferees of the Trust units each month based upon the ownership of the Trust units on
the first day of each month, instead of on the basis of the date a particular unit is transferred.

The Trust prorates items of income, gain, loss and deduction between transferors and transferees of the Trust units each month based
upon the ownership of the Trust units on the first day of each month, instead of on the basis of the date a particular unit is transferred. The use of this proration method may not be permitted under
existing Treasury Regulations, and, accordingly, the Trust's counsel was unable to opine as to the validity of this method. If the IRS were to challenge this method or new Treasury Regulations were
issued, we may be required to change the allocation of items of income, gain, loss and deduction among the Trust unitholders. If the IRS contests the federal income tax positions the Trust takes, the
market for the Trust units may be adversely impacted, the cost of any IRS contest will reduce the Trust's cash available for distribution to you and items of income, gain, loss and deduction may be
reallocated among Trust unitholders.

If the IRS contests the federal income tax positions the Trust takes, the market for the Trust units may be adversely impacted and the cost of any IRS contest will reduce
the Trust's cash available for distribution to you.

The Trust has not requested a ruling from the IRS with respect to its treatment as a partnership for federal income tax purposes or any
other matter affecting the Trust. The IRS may adopt positions that differ from the conclusions of the Trust's counsel expressed in this prospectus or from the positions the Trust takes. It may be
necessary to resort to administrative or court proceedings to attempt to sustain some or all of the conclusions of the Trust's counsel or the positions the Trust takes. A court may not agree with some
or all of the conclusions of the Trust's counsel or positions the Trust takes. Any contest with the IRS may materially and adversely impact the market for the Trust units and the price at which they
trade. In addition, the Trust's costs of any contest with the IRS will be borne indirectly by the Trust unitholders because the costs will reduce the Trust's cash available for distribution.

You will be required to pay taxes on your share of the Trust's income even if you do not receive any cash distributions from the Trust.

Because the Trust unitholders will be treated as partners to whom the Trust will allocate taxable income which could be different in
amount than the cash the Trust distributes, you will be required to pay any federal income taxes and, in some cases, state and local income taxes on your share of the Trust's taxable income even if
you receive no cash distributions from the Trust. You may not receive cash distributions from the Trust equal to your share of the Trust's taxable income or even equal to the actual tax liability that
results from that income.

Tax gain or loss on the disposition of the Trust units could be more or less than expected.

If you sell your Trust units, you will recognize a gain or loss equal to the difference between the amount realized and your tax basis
in those Trust units. Because distributions in excess of your allocable share of the Trust's net taxable income decrease your tax basis in your Trust units, the amount, if any, of such prior excess
distributions with respect to the Trust units you sell will, in effect, become taxable income to you if you sell such Trust units at a price greater than your tax basis in those Trust units, even if
the price you receive is less than your original cost. Furthermore, a substantial portion of the amount realized, whether or not representing gain, may be taxed as ordinary income due to potential
recapture items, including depletion recapture.

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Tax-exempt entities and non-U.S. persons face unique tax issues from owning the Trust units that may result in adverse tax consequences to them.

Investment in Trust units by tax-exempt entities, such as individual retirement accounts (known as IRAs), and
non-U.S. persons raises issues unique to them. For example, some of the Trust income allocated to organizations exempt from United States federal income tax, including IRAs and other
retirement plans, may be unrelated business taxable income which would be taxable to them. Distributions to non-U.S. persons may be reduced by withholding taxes at the highest applicable
effective tax rate, and non-U.S. persons may be required to file U.S. federal income tax returns and pay tax on their share of the Trust's taxable income.

The Trust will treat each purchaser of Trust units as having the same economic attributes without regard to the actual Trust units purchased. The IRS may challenge this
treatment, which could adversely affect the value of the Trust units.

Due to a number of factors, including the Trust's inability to match transferors and transferees of Trust units, the Trust will adopt
positions that may not conform to all aspects of existing Treasury Regulations. A successful IRS challenge to those positions could adversely affect the amount of tax benefits available to you. It
also could affect the timing of these tax benefits or the amount of gain from your sale of Trust units and could have a negative impact on the value of the Trust units or result in audit adjustments
to your tax returns.

A Trust unitholder whose Trust units are loaned to a "short seller" to cover a short sale of Trust units may be considered as having disposed of those Trust units. If so, he
would no longer be treated for tax purposes as a partner with respect to those Trust units during the period of the loan and may recognize gain or loss from the disposition.

Because a Trust unitholder whose Trust units are loaned to a "short seller" to cover a short sale of Trust units may be considered as
having disposed of the loaned Trust units, the Trust unitholder may no longer be treated for United States federal income tax purposes as a partner with respect to those Trust units during the period
of the loan to the short seller and the unitholder may recognize gain or loss from such disposition. Moreover, during the period of the loan to the short seller, any of the Trust's income, gain, loss
or deduction with respect to those Trust units may not be reportable by the unitholder and any cash distributions received by the unitholder as to those Trust units could be fully taxable as ordinary
income. The Trust's counsel has not rendered an opinion regarding the treatment of a unitholder where Trust units are loaned to a short seller to cover a short sale of Trust units; therefore, Trust
unitholders desiring to assure their status as partners and avoid the risk of gain recognition from a loan to a short seller are urged to modify any applicable brokerage account agreements to prohibit
their brokers from loaning their Trust units.

The Trust will adopt certain valuation methodologies that may affect the income, gain, loss and deduction allocable to the Trust unitholders. The IRS may challenge this
treatment, which could adversely affect the value of the Trust units.

The federal income tax consequences of the ownership and disposition of Trust units will depend in part on the Trust's estimates of the
relative fair market values, and the initial tax bases of the Trust's assets. Although the Trust may from time to time consult with professional appraisers regarding valuation matters, the Trust will
make many of the relative fair market value estimates itself. These estimates and determinations of basis are subject to challenge and will not be binding on the IRS or the courts. If the estimates of
fair market value or basis are later found to be incorrect, the character and amount of items of income, gain, loss or deductions previously reported by Trust unitholders might change, and Trust
unitholders might be required to adjust their tax liability for prior years and incur interest and penalties with respect to those adjustments. It also could affect the amount of gain from

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unitholders'
sale of Trust units and could have a negative impact on the value of the Trust units or result in audit adjustments to unitholders' tax returns without the benefit of additional
deductions.

The sale or exchange of 50% or more of the Trust's capital and profits interests during any twelve-month period will result in the termination of the Trust's partnership
status for federal income tax purposes.

The Trust will be considered to have technically terminated for federal income tax purposes if there is a sale or exchange of 50% or
more of the total interests in its capital and profits within a twelve-month period. For purposes of determining whether the 50% threshold has been met, multiple sales of the same Trust unit within
any 12 month period will be counted only once. The Trust's termination would, among other things, result in the closing of its taxable year for all Trust unitholders, which would result in the
Trust filing two tax returns (and the Trust unitholders could receive two Schedules K-1) for one calendar year. The IRS has recently announced a relief procedure whereby if a
publicly traded partnership that has technically terminated requests and the IRS grants special relief, among other things, the partnership will be required to provide only a single
Schedule K-1 to unitholders for the tax year in which the termination occurs. In the case of a unitholder reporting on a taxable year other than a calendar year ending
December 31, the closing of the Trust's taxable year may also result in more than twelve months of the Trust's taxable income being includable in his taxable income for the year of termination.
A technical termination would not affect the Trust's classification as a partnership for federal income tax purposes, but instead, the Trust would be treated as a new partnership for tax purposes. If
treated as a new partnership, the Trust must make new tax elections and could be subject to penalties if the Trust is unable to determine that a technical termination occurred.

Certain federal income tax preferences currently available with respect to natural gas production may be eliminated as a result of future legislation.

Among the changes contained in President Obama's Budget Proposal for Fiscal Year 2012 (the "2012 Budget") is the elimination of certain
key U.S. federal income tax preferences relating to natural gas exploration and production. The 2012 Budget proposes to eliminate certain tax preferences applicable to taxpayers engaged in the
exploration or production of natural resources effective in 2012. Specifically, the 2012 Budget proposes to repeal the deduction for percentage depletion with respect to oil and natural gas wells,
including interests such as the Perpetual Royalty Interests, in which case only cost depletion would be available.

Item 1B.Unresolved Staff Comments.

None.

Item 2.Properties.

The Underlying Properties

The Underlying Properties consist of the working interests owned by ECA and the Private Investors in the Marcellus Shale formation in
Greene County, Pennsylvania arising under leases and farmout agreements related to properties from which the PDP Royalty Interest and the PUD Royalty Interest were conveyed. There are in excess of 100
potential drilling locations for the PUD Wells within the AMI. As of December 31, 2010 the total gas reserves attributable to the Trust interests were 102.4 Bcf. This amount includes
42.5 BCF of proved developed reserves and 59.9 BCF of proved undeveloped reserves. ECA is currently the operator of all of the wells subject to the PDP Royalty Interest. The reserves
attributable to the Royalties include the reserves that are expected to be produced from the Marcellus Shale formation during the 20-year period in which the Trust owns the royalty
interests as well as the residual interest in the reserves that the Trust will sell on or shortly following the Termination Date.

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As of December 31, 2010, the Underlying Properties include 19 gross (19.5 net as calculated under the Development Agreement) productive gas wells which
encompass approximately 1,520 gross (1,560 net as calculated under the Development Agreement) productive acres. Currently, the Underlying Properties include approximately 9,300 acres of which
ECA owns substantially all of the working interests.

The Underlying PUD Properties

The underlying PUD properties consist of all of the working interests in proved undeveloped gas properties in the AMI held by ECA. The
interests of ECA in the gas properties to which the underlying PUD properties relate consist of working interests of approximately 100%. The conveyance related to the PUD Royalty Interest, however,
provides that the proceeds from the PUD Wells will be calculated on the basis that the underlying PUD Wells are only burdened by interests that in total would not exceed 12.5% of the revenues from
such properties, regardless of whether the other interest owners are actually entitled to a greater percentage of revenues from such properties. The AMI is located in Greene County, Pennsylvania,
which is in southwestern Pennsylvania and consists of approximately 121 square miles.

The
PUD Royalty Interest entitles the Trust to receive an undivided 50% interest in the proceeds from the sale of future production of natural gas resulting from the drilling of the PUD
Wells. As ECA drills the PUD Wells, the Trustee is required to release the Drilling Support Lien.

ECA
has agreed not to drill and complete, and will not permit any other person within its control to drill and complete, any well in the Marcellus Shale formation on the lease acreage
included within the AMI described above for its own account until such time as ECA has met its commitment to drill the PUD Wells. Upon the Trustee's complete release of the Drilling Support Lien, ECA
will further agree not to drill and complete, and will not permit any other person within its control to drill and complete, any well in the Marcellus Shale formation on the lease acreage that will
have a perforated segment that will be within 500 feet of any perforated interval of any PUD or Producing Well.

In
the conveyance documents for the PUD Royalty Interest, ECA expressly excepted and reserved all right, title and interest in and to any well and appurtenant production facilities not
expressly conveyed to the Trust. The PDP Royalty Interest is included within the AMI and those properties will remain subject to the terms and conditions of the PDP Royalty Interest conveyance
documents.

The
PUD Royalty Interest conveyances further provide that the Trust's PUD Royalty Interest will be applicable to any additional acreage leased or acquired by any other means by ECA
within the AMI until the drilling obligation of ECA to the Trust is met. Subject to the terms of the PUD Royalty Interest, ECA, in its sole discretion, may add such additional acreage to the Trust,
and may exchange acreage for other acreage in the AMI, provided the aggregate acreage attributable to additional leases and the exchange leases shall not exceed five percent of the acreage currently
subject to the PUD Royalty Interest. No assurance can be given, however, that any development well will produce in commercial quantities or that the characteristics of any development well will match
the characteristics of ECA's existing wells or ECA's historical drilling success rate. ECA operates all of the Producing Wells and has agreed to operate not less than 90% of the PUD Wells during the
subordination period.

Natural Gas Reserves

Ryder Scott estimated natural gas reserves attributable to the Royalties as of December 31, 2010. Numerous uncertainties are
inherent in estimating reserve volumes and values, and the estimates are subject to change as additional information becomes available. The reserves actually recovered and the timing of production of
the reserves may vary significantly from the original estimates.

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Proved reserves of the royalty interests.The following table, effective as of December 31, 2010, contains certain estimated
proved reserves,
estimated future net cash flows and the discounted present value thereof attributable to the Royalties, in each case derived from the reserve report. The reserve report was prepared by Ryder Scott in
accordance with criteria established by the SEC. In accordance with the SEC's rules, the reserves presented below were determined using the twelve month unweighted arithmetic average of the
first-day-of-the-month price for the period from January 1, 2010 through December 31, 2010, without giving effect to any derivative
transactions, and were held constant for the life of the properties. This yielded a price for natural gas of $4.65 per Mcf. Proved reserve quantities attributable to the Royalties are calculated by
multiplying the gross reserves less fuel usage and line loss for each property by the royalty interest assigned to the Trust in each property. The net revenues attributable to the Trust's reserves are
net of the Trust's obligation to reimburse ECA for the post-production costs. The reserves and cash flows attributable to the Trust's interests include only the reserves attributable to
the Underlying Properties that are expected to be produced within the 20-year period in which the Trust owns the royalty interest as well as the 50% residual interest in the reserves that
the Trust will own on the Termination Date. A summary of the reserve report is included as Appendix A to this report.

Proved reserves

Proved Gas
Reserves
(Bcf)

Estimated Future
Net Cash Flows

Discounted
Estimated Future
Net Cash
Flows(1)(Dollars in thousands)Royalty Interests:Proved Developed(2)


42.486

$
174,607

$
98,757Proved Undeveloped


59.963


246,430


132,485Total


102.449

$
421,037

$
231,242


(1)The
present values of future net cash flows for the Royalties were determined using a discount rate of 10% per annum.(2)Includes
reserves currently behind pipe in wells which are in the process of being completed.


Information
concerning historical changes in net proved reserves attributable to the Royalties, and the calculation of the standardized measure of discounted future net cash flows
related thereto, is contained in the unaudited supplemental information contained elsewhere in this report. The Trust has not filed reserve estimates covering the Royalties with any other federal
authority or agency.

The Reserve Report

Technologies.The reserve report was prepared using decline curve analysis to determine the reserves of individual Producing Wells.
After estimating
the reserves of each proved developed well, it was determined that a reasonable level of certainty exists with respect to the reserves which can be expected from any individual undeveloped well in the
field. The consistency of reserves attributable to the Producing Wells, which cover a wide area of the AMI, further supports proved undeveloped classification.

Also,
a 3-D seismic survey was shot and interpreted across substantially all of the AMI and has been used to confirm the consistency of important reservoir properties
throughout the AMI. Seismic interpretation has been used to support ECA's belief of a consistency of Marcellus Shale formation thickness across the AMI, which is further substantiated by electric log
and mudlog data from wells drilled on the Underlying Properties and adjacent wells drilled by third-party operators. Also, ECA has recently begun using seismic analysis of structural features on the
Underlying Properties to optimally place PUD Wells within the acreage. By observing faults and other structural features within the

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acreage,
ECA is able to place PUD Wells so that they will have the longest lateral length possible while staying in the Marcellus Shale formation by avoiding significant faults. The location of these
faults also confirms the number of potential proved undeveloped locations on the acreage and indicates that the PUD locations will be able to be drilled without crossing significant faults or
encountering structural features, such as steeply dipping beds near faults, which could limit lateral length. Electric logs and
other geologic and engineering data gathered from proved developed wells and vertical Marcellus Shale wells ECA has previously drilled across the AMI further support the consistency of the Marcellus
Shale reservoir throughout the AMI. Finally, ECA regularly trades geologic, engineering, and operations data with other operators in the area surrounding the AMI. This technical and production data
further supports the consistency of the Marcellus Shale in and around the AMI.

While
a number of PUD Wells within the Underlying Properties are not direct offsets of other producing wells, both ECA and Ryder Scott, as independent petroleum engineers, were
reasonably certain that all of the undrilled wells could be classified as PUD Wells because of the consistency of the Marcellus Shale formation across the AMI. As noted above, 3-D seismic
data has been used to target PUD Well placement so as to avoid encountering significant faults or structural features. Data from both ECA and offset operators with which ECA has exchanged technical
data demonstrate a consistency in this resource play over an area much larger than the AMI. In addition, direct measurement from other producing wells has also been used to confirm consistency in
reservoir properties such as total organic content, vitrinite reflectance, porosity, thickness, and stratigraphic conformity. Most importantly, production from other producing wells confirms that
horizontal Marcellus Shale wells across the AMI have similar performance with respect to initial production, decline curve shape, and estimated ultimate recovery.

Internal Controls.Ryder Scott, the independent petroleum engineering consultant, estimated, in accordance with appropriate engineering,
 geologic,
and evaluation principles and techniques that are in accordance with practices generally accepted in the petroleum industry, and definitions and guidelines established by the SEC, all of the proved
reserve information in this report. These reserves estimation methods and techniques are widely taught in university petroleum curricula and throughout the industry's ongoing training programs.
Although these appropriate engineering, geologic, and evaluation principles and techniques that are in accordance with practices generally accepted in the petroleum industry are based upon established
scientific concepts, the application of such principles involves extensive judgment and is subject to changes in existing knowledge and technology, economic conditions and applicable statutory and
regulatory provisions. These same industry wide applied techniques are used in determining our estimated reserve quantities. The technical persons responsible for preparing the reserves estimates
presented herein meet the requirements regarding qualifications, independence, objectivity and confidentiality set forth in the Society of Petroleum Engineers' Standards Pertaining to the Estimating
and Auditing of Oil and Gas Reserves Information. ECA's internal control over its reserve reporting process is designed to result in accurate and reliable estimates in compliance with applicable
regulations and guidance. Internal reserve preparation is performed by staff reservoir engineers and geoscientists before review by the Senior Reservoir Engineer and finally the Vice President of
Eastern Operations. These individuals consult regularly with Ryder Scott during the reserve estimation process to review properties, assumptions, and any new data available. Additionally, ECA's senior
management reviewed and approved all Ryder Scott reserve reports contained herein.

ECA's
reserves are first estimated by a Staff Reservoir Engineer before being reviewed by the Senior Reservoir Engineer. The Senior Reservoir Engineer has a Bachelor of Science in
Petroleum Engineering. He has over 3 years of oil and gas industry experience in reservoir Engineering. During that time, he has focused on reserves estimates and project economics.

ECA's
Vice President of Eastern Operations is the primary technical person responsible for overseeing the reserve reporting process. This individual has a Bachelor of Science degree in
Chemical Engineering with Masters of Petroleum Engineering coursework along with a Master of Business

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Administration
degree. He has worked in drilling, completions, production, and reservoir engineering along with acquisitions during his career and is a member of the Society of Petroleum Engineers. He
has over six years of experience in reserve evaluation.

Material Changes.Since the March 31, 2010 reserve report, ECA completed the six Producing Wells which were in the process of
being completed
and were noted in the March 31, 2010 reserves as "currently behind pipe in existing wells". Also during this time, ECA drilled and completed the first five PUD wells, which have since been
classified as proved developed. Finally, ECA drilled three additional PUD Wells which were included in proved developed reserves as of December 31, 2010, and were completed but awaiting initial
production.

Well Locations

ECA has over 100 locations within the AMI and may drill some of the PUD Wells on units that encompass land controlled by third-party
operators in order to maximize recovery in the field and also maximize the lateral length of each PUD Well drilled. If ECA drills one or more PUD Wells in which it controls less than 100% working
interest, it will be obligated to drill additional PUD Wells above the 52 planned for the Trust in order to make the total number of net (equivalent) PUD Wells equal 52, provided that ECA may be
required to drill fewer gross development wells due to lateral length from any well or wells exceeding 2,500 feet. For instance, if ECA drilled one well in which it controlled 50% working
interest, and it was drilled to a horizontal lateral length of 2,500 feet, this well would only count as one-half of a PUD Well. In order to compensate for this, ECA would be
obligated to drill an additional PUD Well with a horizontal lateral length of 2,500 feet and a 50% working interest so that the Trust still received in total 52 equivalent wells.

Sale and Abandonment of Underlying Properties

ECA and any transferee will have the right to abandon its interest in any well or property comprising a portion of the Underlying
Properties if, in its opinion, such well or
property ceases to produce or is not capable of producing in commercially paying quantities. To reduce or eliminate the potential conflict of interest between ECA and the Trust in determining whether
a well is capable of producing in commercially paying quantities, ECA is required under the applicable conveyance to act as a reasonably prudent operator in the AMI under the same or similar
circumstances would act if it were acting with respect to its own properties, disregarding the existence of the royalty interests as a burden affecting such property.

After
completion of its drilling obligation, ECA generally may sell all or a portion of its interests in the Underlying Properties, subject to and burdened by the Royalties, without the
consent of the Trust unitholders. In addition, ECA may, without the consent of the Trust unitholders, require the Trust to release royalty interests with an aggregate value to the Trust not to exceed
$5.0 million during any 12-month period. These releases will be made only in connection with a sale by ECA of the Underlying Properties and are conditioned upon the Trust receiving
an amount equal to the fair value to the Trust of such royalty interests. ECA operates all of the Producing Wells and will operate not less than 90% of the PUD Wells during the subordination period.
Any net sales proceeds paid to the Trust are distributable to Trust unitholders for the quarter in which they are received. ECA has not identified for sale any of the Underlying Properties.

Title to Properties

The Underlying Properties are subject to certain burdens that are described in more detail below. To the extent that these burdens and
obligations affect ECA's rights to production and the value of production from the Underlying Properties, they have been taken into account in calculating the Trust's interests and in estimating the
size and the value of the reserves attributable to the Royalties.

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ECA
acquired its interests in the Underlying Properties through a variety of means, including through the acquisition of oil and gas leases by ECA directly from the mineral owner,
through assignments of oil and gas leases to ECA by the lessee who originally obtained the leases from the mineral owner, through farmout agreements that grant ECA the right to earn interests in the
properties covered by such agreements by drilling wells, and through acquisitions of other oil and gas interests by ECA.

ECA's
interests in the gas properties comprising the Underlying Properties are typically subject, in one degree or another, to one or more of the following:



ECA
believes that the burdens and obligations affecting the Underlying Properties and the royalty interests are conventional in the industry for similar properties. ECA also believes
that the burdens and obligations do not, in the aggregate, materially interfere with the use of the Underlying Properties and will not materially adversely affect the value of the Royalties.

ECA
believes that its title to the Underlying Properties, and the Trust's title to the Royalties, is good and defensible in accordance with standards generally accepted in the oil and
gas industry, subject to such exceptions as are not so material as to detract substantially from the use or value of such properties or Royalties. Consistent with industry practice, ECA has not
obtained a preliminary title review of the PUD Wells. Prior to drilling a PUD Well, ECA intends to obtain a preliminary title review to ensure there are no obvious defects in title to the well.
Frequently, as a result of such examination, certain curative work must be done to correct defects in the marketability of title. The conveyance related to the PUD Royalty Interest obligates ECA to
conduct a more thorough title examination of the drill site tract prior to drilling any of the PUD Wells. ECA will not be relieved of its obligation to drill a well if such title examination prior to
drilling reveals a title defect preventing ECA from drilling in such drill site.

It
is unclear under Pennsylvania law whether the Royalties would be treated as real property interests. Nevertheless, ECA has recorded the conveyances of the Royalties in the real
property records of Pennsylvania in accordance with local recording acts. ECA has granted to the Trust the Royalty Interest Lien to provide protection to the Trust, in the event of a bankruptcy of
ECA, against the risk that the Royalties were not considered real property interests.

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Description of the Royalties

The Royalties were conveyed to the Trust by ECA by means of conveyance instruments that have been recorded in the appropriate real
property records in Greene County, Pennsylvania where the gas properties to which the Underlying Properties relate are located. The PDP Royalty Interest burdens the existing working interests owned by
ECA in the Producing Wells. ECA has an average working interest of approximately 93% in these wells.

The
PUD Royalty Interest initially burdened 50% of all of the interests of ECA in the Marcellus Shale formation in the AMI. ECA's interests in the gas properties to which the PUD Wells
relate consist of an average working interest of 100%. The conveyance related to the PUD Royalty Interest, however,
provides that the proceeds from the PUD Wells will be calculated on the basis that the PUD Wells are only burdened by interests that in total would not exceed 12.5%. In the event that ECA's interest
in any of the wells subject to the PUD Royalty Interest that are drilled is subject to burdens in excess of a 12.5%, such burdens will be fully allocated against ECA's retained interest in such well,
the net effect of which is that the Trust will receive payments with respect to the PUD Royalty Interest as if the burdens effecting the PUD Wells were in total 12.5% (proportionately reduced).

Generally,
the percentage of production proceeds to be received by the Trust with respect to a well will equal the product of (i) the percentage of proceeds to which the Trust is
entitled under the terms of the conveyances (90% for the Producing Wells and 50% for the PUD Wells) multiplied by (ii) ECA's net revenue interest in the well. ECA on average owns an 81.53% net
revenue interest in the Producing Wells. Therefore, the Trust is entitled to receive on average 73.37% of the proceeds of production from the Producing Wells. With respect to a PUD Well, the
conveyance related to the PUD Royalty Interest provides that the proceeds from the PUD Wells will be calculated on the basis that the underlying PUD Wells are burdened only by interests that in total
would not exceed 12.5% of the revenues from such properties, regardless of whether the royalty interest owners are actually entitled to a greater percentage of revenues from such properties. As the
applicable net revenue interest of a well is calculated by multiplying ECA's percentage working interest in such well by the unburdened interest percentage (87.5%), assuming ECA owns a 100% working
interest in a PUD Well, such well would have a minimum 87.5% net revenue interest. Accordingly, the Trust would be entitled to 43.75% of the production proceeds from such well.

Pursuant
to the Development Agreement, ECA will satisfy its drilling obligation only when it has drilled 52 equivalent wells. The proved undeveloped reserves included in the reserve
report represent the reserves assigned to undeveloped locations that ECA anticipates drilling. However, under the conveyances, ECA is obligated to act as a reasonably prudent operator in the AMI under
the same or similar circumstances as it would if it were acting with respect to its own properties, disregarding the existence of the royalty interests as burdens affecting such properties.
Accordingly, there may be situations where ECA will be obligated to drill on one or more of the over 100 potential drilling locations within the AMI, including the 52 drilling locations identified in
the reserve report, that are not those identified locations underlying the reserve report.

Based
on extensive geologic and engineering data from the Producing Wells and vertical Marcellus Shale wells in the AMI, as well as 3-D seismic testing within the region, ECA
believes that the Marcellus Shale formation has demonstrated consistency in formation thickness and other important characteristics across the AMI. When combined with the fact that ECA is obligated to
operate as a reasonably prudent operator with respect to the PUD Wells, ECA believes that a deviation from the 52 identified drilling locations underlying the reserve report would not occur absent a
reasonable belief that (i) such deviation would not result in production at least equal to that of the location deviated from, and (ii) not materially reduce the anticipated reserves
attributable to the 52 equivalent wells forming the PUD Wells. To the extent ECA's working interest in a PUD Well is less than 100%, the Trust's share of proceeds would be proportionately reduced.
Pursuant to the Development Agreement,

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however,
ECA will only satisfy its drilling obligation when it has drilled 52 equivalent wells. Therefore, any reduction in production proceeds attributable to a PUD Well caused by ECA having less
than a 100% working interest in the well will be offset by the requirement to drill additional wells. An equivalent PUD Well is calculated by multiplying the working interest held by ECA by the
horizontal lateral length of the well relative to 2,500 feet. PUD Wells drilled horizontally in the Marcellus Shale formation with a horizontal lateral distance (measured from the midpoint of
the curve to the end of the lateral) of less than 2,500 feet will count as a fractional well in proportion to total lateral length divided by 2,500 feet. In the event ECA commences
drilling of a PUD Well but fails to drill beyond the mid-point of the curve, such well will not count as a fractional well. PUD Wells with a horizontal lateral distance of greater than
2,500 feet (subject to a maximum of 3,500 feet) will count as one well plus a fractional well equal to the length drilled in excess of 2,500 (up to 3,500 feet) feet divided by
2,500 feet. Accordingly, for example, if ECA drilled one well in which it has a 50% working interest, and such well was drilled to a horizontal lateral length of 2,500 feet, such well
would count for purposes of the Development Agreement as only 0.50 PUD Wells. In order to compensate for this, ECA would be obligated to drill an additional 0.50 PUD Wells. Such additional 0.50 PUD
Wells could be achieved, for example, by drilling an additional PUD Well with a horizontal lateral length of 3,000 feet (or 500 feet longer than the 2,500 foot base lateral
length) in which ECA holds a 41.7% working interest, or by drilling an additional PUD Well with a horizontal lateral length of 2,000 feet (or 500 feet shorter than the 2,500 foot
base lateral length) in which ECA holds a 62.5% working interest. ECA believes that longer laterals will produce more reserves both in the near term and ultimately. Consequently, longer lateral
distances achieved should provide incremental benefit to the Trust. The maximum credit ECA can earn toward the 52 well requirement under the Development Agreement by drilling a single actual
well is 1.4 wells, calculated as described above.

PDP Royalty Interest.The conveyances creating the PDP Royalty Interest entitle the Trust to receive an amount of cash for each
calendar quarter
equal to 90% of the proceeds (exclusive of any production or development costs but after deducting post-production costs and any applicable taxes) from the sale of estimated natural gas production
attributable to the Producing Wells regardless of whether such amounts have actually been received by ECA from the purchases of the natural gas produced. Proceeds from the sale of natural gas
production attributable to the Producing Wells in any calendar quarter means:



in
each case, after deducting the Trust's proportionate share of:



Proceeds
payable to the Trust from the sale of natural gas production attributable to the Producing Wells in any calendar quarter will not be subject to any deductions for any expenses
attributable to exploration, drilling, development, operating, maintenance or any other costs incident to the production of natural gas production attributable to the Producing Wells, including any
costs to plug and abandon a Producing Well.

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PUD Royalty Interest.The conveyance creating the PUD Royalty Interest entitles the Trust to receive an amount of cash for each
calendar quarter
equal to 50% of the proceeds (after deducting post-production costs and any applicable taxes) from the sale of estimated natural gas production attributable to the PUD Wells regardless of whether such
amounts have actually been received by ECA from the purchase of the natural gas produced. Proceeds from the sale of natural gas production, if any, attributable to the PUD Wells in any calendar
quarter means:



in
each case after deducting the Trust's proportionate share of:



Proceeds,
if any, payable to the Trust from the sale of natural gas production attributable to the PUD Wells in any calendar quarter:



Royalty Interest Lien

Under the laws of Pennsylvania, it is not clear that the Royalties conveyed by ECA to the Trust would be treated as real property
interests. Therefore, ECA has granted to the Trust the Royalty Interest Lien to provide protection to the Trust, exercisable in the event of a bankruptcy of ECA, against the risk that the Royalties
were not considered real property interests. More specifically, the Royalty Interest Lien is a lien in the Subject Interest and the Subject Gas, to the extent and only to the extent that such Subject
Interest and Subject Gas pertains to Gas in, under and that may be produced, saved or sold from the Marcellus Shale formation from the wellbore of the Producing Wells and the PUD Wells, sufficient to
cause the Trust to receive a volume of Trust Gas calculated in accordance with the provisions of the conveyances of the royalty interests. Capitalized terms used in the preceding sentence and not
otherwise defined in this report shall have the following meanings:

"Gas"
means natural gas and all other gaseous hydrocarbons, excluding condensate, butane, and other liquid and liquefiable components that are actually removed from the Gas stream by
separation, processing, or other means.

"Subject
Gas" means Gas from the Marcellus Shale formation from any Producing Well or PUD Well.

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"Subject Interest" means ECA's undivided interests in the AMI, as lessee under Gas leases, as an owner of the Subject Gas (or the right to extract such Gas), or
otherwise, by virtue of which undivided interests ECA has the right to conduct exploration and Gas production operations on the AMI.

"Trust
Gas" means that percentage of Gas to which the Trust is entitled, calculated in accordance with the provisions of the conveyances of the Royalties.

The
Royalty Interest Lien does not include ECA's retained interest in the PUD and Producing Wells and the AMI or other interest of ECA in the AMI, and ECA has the right to lien,
mortgage, sell or otherwise encumber the ECA retained interest subject to the Royalty Interest Lien.

ECA
has recorded the conveyances of the Royalties and a Mortgage/Fixture Filing in the real estate records of Greene County, Pennsylvania and has filed a corresponding UCC-1
Financing Statement in the Office of the Secretary of State of West Virginia and the Commonwealth of Pennsylvania.

The
conveyances also provide that if ECA's interest with respect to the PDP properties is greater than what was warranted to the Trust in the conveyances, ECA will have the right to
offset against amounts
owed to the Trust, the difference between what the Trust actually receives from PDP Royalty Interest and what the Trust should have received from the PDP Royalty Interest had ECA's interest been the
amount warranted.

Additional Provisions

If a controversy arises as to the sales price of any production, then for purposes of determining gross
proceeds:



The
Trustee is not obligated to return any cash received from the Royalties. However, any overpayments made to the Trust by ECA due to adjustments to prior calculations of proceeds or
otherwise will reduce future amounts payable to the Trust until ECA recovers the overpayments.

The
conveyances generally permit ECA to sell, without the consent or approval of the Trust unitholders, all or any part of its interest in the Underlying Properties, if the Underlying
Properties are sold, subject to and burdened by the Royalties. Notwithstanding the foregoing, the conveyances provide that ECA may not sell any of the Underlying Properties subject to the PUD Royalty
Interest until it has satisfied its obligation to drill PUD Wells pursuant to the terms of the Development Agreement. The Trust unitholders are not entitled to any proceeds of any sale of ECA's
interest in the Underlying Properties that remains subject to and burdened by the Royalties. Following any such sale, the proceeds attributable to the transferred property will be calculated pursuant
to the conveyances as described in this report, and paid by the purchaser or transferee to the Trust.

Subject
to the terms of the conveyances, ECA may at its option at any time prior to the completion of its drilling obligation, cause the Trust to exchange leased acreage subject to the
Royalties, free and clear of such Royalties, for other leased acreage within the AMI (as defined in the conveyances). Such leased acreage exchanged to the Trust shall then be subject to the Royalties
as set forth in the conveyances.

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Additionally,
the conveyances provide that, in the event ECA acquires any additional leases in the AMI prior to the completion of its drilling obligation, ECA may at its option make such
additional lease subject to the Royalties. In no event may any additional lease become subject to the Royalties, or any exchange of acreage be effected, unless ECA certifies to the Trust that, among
other things, all of the aggregate acreage attributable to the additional leases and exchange leases shall not exceed five percent of the acreage subject to the Royalties.

ECA
or any transferee of an Underlying Property will have the right to abandon any well or property if it reasonably believes the well or property ceases to produce or is not capable of
producing in commercially paying quantities. In making such decisions, ECA or any transferee of an Underlying Property is required under the applicable conveyance to act as a reasonably prudent
operator in the AMI under the same or similar circumstances would act if it were acting with respect to its own properties, disregarding the existence of the royalty interests as burdens affecting
such property. Upon termination of the lease, that portion of the royalty interests relating to the abandoned property will be extinguished.

ECA
may, without the consent of the Trust unitholders, require the Trust to release royalty interests with an aggregate value to the Trust up to $5.0 million during any twelve
month period. These releases will be made only in connection with a sale by ECA of the Underlying Properties and are conditioned upon the Trust receiving an amount equal to the fair value to the Trust
of such royalty interests.

ECA
must maintain books and records sufficient to determine the amounts payable for the Royalties to the Trust. Quarterly and annually, ECA must deliver to the Trustee a statement of the
computation of the proceeds for each computation period as well as quarterly drilling and production results.

Item 3.Legal Proceedings.

None.

Item 4.    (Removed and Reserved.)

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PART II

Item 5.Market for Registrant's Common Equity, Related Unitholder Matters and Issuer Purchases of  Equity Securities.

The Trust units commenced trading on the New York Stock Exchange on July 1, 2010 under the symbol "ECT." Prior to July 1,
2010, there was no established public trading market for the Trust units. The high and low sales prices per unit for each quarter in 2010 were as follows:

For the Year Ended
December 31, 2010High

LowThird Quarter (July 1 through September 30)

$
20.47

$
19.55Fourth Quarter (October 1 through December 31)

$
27.24

$
20.16


At
December 31, 2010, the 17,605,000 units outstanding were held by 32 unitholders of record.

Distributions

Each quarter, the Trustee determines the amount of funds available for distribution to the Trust unitholders, as described elsewhere in
this report. Quarterly cash distributions during the term of the Trust are made by the Trustee generally no later than 60 days following the end of each quarter (or the next succeeding business
day) to the Trust unitholders of record on the 45th day following the end of each quarter (or the next succeeding business day). The table below presents the net cash proceeds for each quarter of
2010, the Trust expenses, and the resulting distributable income per Trust unit (dollars in thousands, except distributable income per unit).

2010

Mar 31

June 30

Sept 30

Dec 31

TotalNet proceeds

$


$
5,566

$
7,918

$
9,188

$
22,672General and administrative

$


$


$
658

$
380

$
1,038Distributable income

$


$
4,789

$
7,419

$
8,809

$
21,017Distributable income per unit

$


$
0.272

$
0.421

$
0.500

$
1.193


Subsequent
to year end, on February 28, 2011, a distribution of $0.500 per Trust unit was paid to Trust unitholders owning Trust units as of February 14, 2011.

Equity Compensation Plans

The Trust does not have any employees and, therefore, does not maintain any equity compensation plans.

Recent Sales of Unregistered Securities

On June 30, 2010, the registration statement on Form S-1/S-3 (Registration
No. 333-165833-01) filed by ECA and the Trust in connection with the initial public offering of the Trust units was declared effective by the Securities and Exchange
Commission. On July 7, 2010, the Trust issued 17,605,000 Trust units to ECA and/or the Private Investors in exchange for the conveyances made by ECA of the interests described elsewhere in this
Annual Report on Form 10-K. Immediately thereafter, ECA completed an initial public offering of units of beneficial interest in the Trust, selling 8,802,500 Trust units. After
completion of the closing transactions, but prior to exercise of the underwriters' overallotment option relating to the initial public offering, ECA retained an ownership in 3,296,683 common units and
4,401,250 subordinated units, or 43.7% of the total Trust units issued and outstanding. The sale of the Trust units to ECA and to the Private Investors was exempt from registration by virtue of
Section 4(2) of the Securities Act of 1933.

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Purchases of Equity Securities

Except as described in the Prospectus, there were no purchases of Trust units by the Trust or any affiliated purchaser during the
fourth quarter of 2010.

Item 6.Selected Financial Data.

The following is a summary of royalty income and distributable income per unit by quarter in 2010 (all amounts in thousands except
Distributable income per unit):

2010

Mar 31

June 30

Sept 30

Dec 31

TotalNet proceeds

$


$
5,566

$
7,918

$
9,188

$
22,672Distributable income

$


$
4,789

$
7,419

$
8,809

$
21,017Distributable income per unit

$


$
0.272

$
0.421

$
0.500

$
1.193


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Item 7.Trustee's Discussion and Analysis of Financial Condition and Results of Operation.

This document contains forward-looking statements, which describe current expectations or forecasts of future events. Please refer to
"Forward-Looking Statements" which follows the Table of Contents of this Form 10-K for an explanation of these types of statements.

Overview

The Trust is a statutory trust created under the Delaware Statutory Trust Act. The Bank of New York Mellon Trust Company, N.A. serves
as Trustee. The Trust does not conduct any operations or activities. The Trust's purpose is, in general, to hold the Royalties, to
distribute to the Trust unitholders cash that the Trust receives in respect of the Royalties after payment of Trust expenses, and to perform certain administrative functions in respect of the
Royalties and the Trust units. The Trust derives all or substantially all of its income and cash flows from the Royalties, which in turn are subject to the hedge contracts described in Part I,
Item 3. The Trust is treated as a partnership for federal income tax purposes.

As
of December 31, 2010 the Trust owned royalty interests in the 14 Producing Wells, royalty interests in six PUD Wells that were online and producing two PUD Wells that were
completed but awaiting initial production, and royalty interests in the remaining horizontal natural gas development wells to be drilled to the Marcellus Shale formation within the AMI, in which ECA
presently holds approximately 9,300 acres, of which it owns substantially all of the working interests, in Greene County, Pennsylvania. The AMI consists of the Marcellus Shale formation in
approximately 121 square miles in Greene County, Pennsylvania. ECA is obligated to drill the remaining development wells from drill sites on approximately 9,300 leased acres in the AMI. Until ECA has
satisfied its drilling obligation, it will not be permitted to drill and complete any well in the Marcellus Shale formation on lease acreage included within the AMI for its own account.

The
Royalties were conveyed from ECA's working interest in the Producing Wells and the PUD Wells limited to the Marcellus Shale formation. The PDP Royalty Interest entitles the Trust to
receive 90% of the proceeds (exclusive of any production or development costs but after deducting post-production costs and any applicable taxes) from the sale of production of natural gas
attributable to ECA's interest in the Producing Wells for a period of 20 years commencing on April 1, 2010 and 45% thereafter. The PUD Royalty Interest entitles the Trust to receive 50%
of the proceeds (exclusive of any production or development costs but after deducting post-production costs and any applicable taxes) from the sale of production of natural gas
attributable to ECA's interest in the PUD Wells for a period of 20 years commencing on April 1, 2010 and 25% thereafter. Approximately 50% of the estimated natural gas production
attributable to the Royalties has been hedged with a combination of floors and swaps through March 31, 2014. ECA is entitled to recoup its costs of establishing the floor price contracts only
if and to the extent cash available for distribution by the Trust exceeds certain levels.

ECA
is obligated to drill all of the PUD Wells by March 31, 2013. However, in the event of delays, ECA will have until March 31, 2014 to fulfill its drilling obligation. As
of December 31, 2010, ECA had drilled 16.29 of the PUD Wells, calculated as provided in the Development Agreement. The Trust will not be responsible for any costs related to the drilling of
development wells or any other development or operating costs. The Trust's cash receipts in respect of the Royalties is determined after deducting post-production costs and any applicable
taxes associated with the PDP and PUD Royalty Interests, and the Trust's cash available for distribution will include cash receipts from the hedge contracts and will be reduced by Trust administrative
expenses and expenses incurred as a result of being a publicly traded entity. Post-production costs will generally consist of costs incurred to gather, compress, transport, process, treat,
dehydrate and market the natural gas produced. Any charge payable to ECA for such post-production costs on its Greene County Gathering System will be limited to $0.52 per MMBtu

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gathered
until ECA has fulfilled its drilling obligation; thereafter, ECA may increase the Post-Production Services Fee to the extent necessary to recover certain capital expenditures in
the Greene County Gathering System.

Generally,
the percentage of production proceeds to be received by the Trust with respect to a well will equal the product of (i) the percentage of proceeds to which the Trust is
entitled under the terms of the conveyances (90% for the Producing Wells and 50% for the PUD Wells) multiplied by (ii) ECA's net revenue interest in the well. ECA on average owns an 81.53% net
revenue interest in the Producing Wells. Therefore, the Trust is entitled to receive on average 73.37% of the proceeds of production from the Producing Wells. With respect to a PUD Well, the
conveyance related to the PUD Royalty Interest provides that the proceeds from the PUD Wells will be calculated on the basis that the underlying PUD Wells are burdened only by interests that in total
would not exceed 12.5% of the revenues from such properties, regardless of whether the royalty interest owners are actually entitled to a greater percentage of revenues from such properties. As the
applicable net revenue interest of a well is calculated by multiplying ECA's percentage working interest in such well by the unburdened interest percentage (87.5%), assuming ECA owns a 100% working
interest in a PUD Well, such well would have a minimum 87.5% net revenue interest. Accordingly, the Trust is entitled to 43.75% of the production proceeds from such well. To the extent ECA's working
interest in a PUD Well is less than 100%, the Trust's share of proceeds are proportionately reduced. Pursuant to the Development Agreement, however, ECA will only satisfy its drilling obligation when
it has drilled 52 equivalent wells. Therefore, any reduction in production proceeds attributable to a PUD Well caused by ECA having less than a 100% working interest in the well will be offset by the
requirement to drill additional wells to achieve a total of 52 equivalent wells provided that ECA may be required to drill fewer gross development wells due to lateral length from any well or wells
exceeding 2,500 feet. The maximum credit ECA can earn toward the 52 well requirement under the Development Agreement by drilling a single actual well is 1.4 wells, calculated as
described above.

The
Trust expects to make quarterly cash distributions of substantially all of its cash receipts, after deducting Trust administrative expenses and the costs incurred as a result of
being a publicly traded entity and reserves therefor, on or about 60 days following the completion of each quarter through (and including) the quarter ending March 31, 2030. The first
quarterly distribution was made on August 31, 2010 to record unitholders as of August 16, 2010.

The
amount of Trust revenues and cash distributions to Trust unitholders will depend on:



The
amount of the quarterly distributions will fluctuate from quarter to quarter, depending on the proceeds received by the Trust, among other factors. In order to provide support for
cash distributions on the common units, ECA has agreed to subordinate 4,401,250 of the Trust units it owns, which constitute 25% of the outstanding Trust units. While the subordinated units will be
entitled to receive pro rata distributions from the Trust if and to the extent there is sufficient cash to provide a cash distribution on the common units which is no less than the applicable
quarterly subordination thresholds set forth below, if there is not sufficient cash to fund such a distribution on all Trust units,

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the
distribution to be made with respect to the subordinated units will be reduced or eliminated in order to make a distribution, to the extent possible, of up to the subordination threshold amount on
the common units. In exchange for agreeing to subordinate these Trust units, and in order to provide additional financial incentive to ECA to perform its drilling obligation and operations on the
Underlying Properties in an efficient and cost-effective manner, ECA is entitled to receive incentive distributions equal to 50% of the amount by which the cash available for distribution
on all of the Trust units in any quarter exceeds 150% of the subordination threshold for such quarter. ECA's right to receive the incentive distributions will terminate upon the expiration of the
subordination period.

ECA
incurred costs of approximately $5.0 million for floor price contracts transferred to the Trust. ECA is entitled to reimbursement for these expenditures plus interest accrued
at 10% per annum only if and to the extent distributions to Trust unitholders would otherwise exceed the incentive threshold. This reimbursement will be deducted, over time, from the 50% of cash
available for distribution in excess of the incentive thresholds otherwise payable to the Trust unitholders.

The
subordinated units will automatically convert into common units on a one-for-one basis and ECA's right to receive incentive distributions and to recoup the
Reimbursement Amount will terminate, at the end of the fourth full calendar quarter following ECA's satisfaction of its drilling obligation to the Trust. The Trust currently expects that ECA will
complete its drilling obligation on or before March 31, 2013 and that, accordingly, the subordinated units would convert into common units on or before March 31, 2014. In the event of
delays, ECA will have until March 31, 2014 under the Development Agreement to drill all the PUD Wells, in which event the subordinated units would convert into common units on or before
March 31, 2015.

The
table below sets forth the subordination and incentive thresholds for each calendar quarter through the first quarter of 2015. The effective date of the Trust is April 1,
2010, meaning it has

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received
the proceeds of production attributable to the PDP Royalty Interest from that date even though the PDP Royalty Interest was not conveyed to the Trust until July 7, 2010.

Subordination Threshold

Target Distribution

Incentive Threshold2010:Second Quarter

$
0.181

$
0.227

$
0.272Third Quarter


0.334


0.417


0.501Fourth Quarter


0.478


0.597


0.7162011:First Quarter


0.446


0.558


0.669Second Quarter


0.451


0.564


0.676Third Quarter


0.550


0.688


0.825Fourth Quarter


0.565


0.706


0.8472012:First Quarter


0.574


0.717


0.861Second Quarter


0.602


0.752


0.903Third Quarter


0.624


0.780


0.937Fourth Quarter


0.701


0.876


1.0512013:First Quarter


0.756


0.945


1.135Second Quarter


0.754


0.942


1.131Third Quarter


0.701


0.876


1.052Fourth Quarter


0.659


0.824


0.9892014:First Quarter


0.610


0.763


0.915Second Quarter


0.589


0.736


0.883Third Quarter


0.571


0.713


0.856Fourth Quarter


0.549


0.687


0.8242015:First Quarter


0.519


0.649


0.779


Results of Trust Operations

For the Three Months Ended December 31, 2010

The Trust's distributable income was $8,809,013 for the three months ended December 31, 2010. This amount was less than the
projected cash available for distribution determined in establishing the target distributions described in the Prospectus by approximately $1.7 million.

Total
revenues for the quarter of $9.2 million were $1.7 million less than the projected amount of $10.9 million. This decrease in revenues was primarily the result
of the $4.60 per Mcf average price realized for the quarter being $0.92 per Mcf lower than the projected price of $5.52 per Mcf. This was partially offset by production volumes being greater than
projected by 17 MMcf. Twenty wells (14 Producing Wells and 6 PUD Wells) were online and producing at the end of the quarter, which was two less than projected in the Prospectus.

The
average $4.60 per Mcf price realized for the quarter was lower than projected primarily as a result of the weighted average closing NYMEX price of $3.81 per Dth being lower than the
projected price of $5.21 per Dth for the quarter. This lower weighted average NYMEX price was partially offset as a result of the hedge proceeds received for the quarter being $1.2 million
greater than projected due to the lower NYMEX price.

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Total
production for the quarter of 1,996 MMcf was 17 MMcf higher than projected. Twenty wells (14 Producing Wells and 6 PUD Wells) were online and producing at the end of
the quarter, which was two less than projected. Of the six PUD Wells, four of these wells were brought online during the quarter ended December 31, 2010. One well was brought online in late
October, two in mid November, and one in late December. These four wells had an average daily production rate, net to the Trust, of 3,924 Mcf per day for January 2011. The average gross initial
per well production for the first thirty days of production for these four wells was 3,159 Mcf per day which is 39.7% above the rate forecasted by the Ryder Scott reserve report described in
the Prospectus for the same time period.

General
and administrative expenses paid by the Trust were $380,000 for the three months ended December 31, 2010. This amount was $31,000 less than the projected expenses for the
quarter, primarily due to the timing of payment of invoices including the Trustee quarterly fee of $37,500 that was not paid until January 2011. During the three months ended December 31, 2010,
ECA received a quarterly Administrative Services Fee of $15,000.

From Inception to December 31, 2010

The Trust's distributable income was $21,016,633 from inception through December 31, 2010. This amount was less than the
projected cash available for distribution determined in establishing the target distributions described in the Prospectus by approximately $0.8 million.

Total
revenues from inception through December 31, 2010 of $22.7 million were $0.4 million less than the projected amount of $23.1 million. This decrease in
revenues was primarily the result of the $4.95 per Mcf average price realized for the period being $0.7574 per Mcf lower than the projected price of $5.69 per Mcf. This was partially offset by
production volumes being greater than projected by 530 MMcf. Twenty wells (14 Producing Wells and 6 PUD Wells) were online and producing at the end of the period, which was two less than
projected.

The
average $4.95 per Mcf price realized for the period was lower than projected primarily as a result of the weighted average closing NYMEX price of $4.05 per Dth being lower than the
projected price of $4.91 per Dth for the period. This lower weighted average NYMEX price was partially offset as a result of the hedge proceeds received being $1.6 million greater than
projected due to the lower NYMEX price.

Total
production for the period of 4,583 MMcf was 530 MMcf higher than projected. Twenty wells (14 Producing Wells and 6 PUD Wells) were online and producing at the end of
the period, which was two less than projected. Of the six PUD Wells, two were brought online in mid September, one was brought online in late October, two in mid November, and one in late December.
These six wells had an average daily production rate, net to the Trust, of 6,578 Mcf per day for January 2011. The average gross initial per well production for the first thirty days of
production for these six wells was 2,854 Mcf per day which is 26.3% above the rate forecasted by the Ryder Scott reserve report described in the Prospectus for the same time period.

General
and administrative expenses paid by the Trust were $1.0 million for the period ended December 31, 2010. This amount was $0.2 million less than the projected
expenses. The Trustee elected to waive its quarterly fee of $37,500 and ECA elected to waive its quarterly Administrative Services Fee of $15,000 for the quarter ended June 30, 2010. Neither
the Trustee nor ECA waived its fees for the quarter ended September 30, 2010 or December 31, 2010 and neither intends to do so in the future. Since inception, the Trustee has established
a net cash reserve of $500,000 for use in paying current and future liabilities of the Trust as they become due. The Trustee currently intends to maintain the reserve at this level, but may increase
or decrease it at any time. This cash reserve reduced the Trust's distributable income for the period.

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Because
the Trust reached the incentive distribution threshold amount to be paid on all trust units for the quarter ended June 30, 2010, ECA received $58,688 (half of the amount
in excess of the threshold) as an incentive distribution, and an additional $58,688 (the other half of the amount in excess of the threshold) as reimbursement for accrued interest on the floor
contract premiums, which are to be repaid to ECA during the subordination period when the incentive distribution threshold amount is reached for all Trust units in any quarter.

Recent Developments

ECA has drilled an additional fourteen PUD Wells as of February 23, 2011 and twelve of these wells are undergoing or awaiting
completion operations while two were brought online in early January 2011. As of February 23, 2011, ECA has drilled a total of twenty actual PUD Wells. However, the average horizontal lateral
distance for these twenty wells (as measured from the midpoint of the curve to the end of the lateral) was 3,881 feet and represents a total of 25.43 net PUD Wells drilled, calculated as
described in the Prospectus. These 25.43 net PUD Wells drilled count toward the 52 equivalent PUD Wells ECA has committed to drill.

Liquidity and Capital Resources

The Trust has no source of liquidity or capital resources other than cash flows from the Royalties. Other than Trust administrative
expenses, including any reserves established by the Trustee for future liabilities, the Trust's only use of cash is for distributions to Trust unitholders, including, if applicable, incentive
distributions to ECA and, if applicable, expense reimbursements to ECA. Administrative expenses include payments to the Trustee and the Delaware Trustee as well as a quarterly fee of $15,000 to ECA
pursuant to the Administrative Services Agreement. Each quarter, the Trustee determines the amount of funds available for distribution. Available funds are the excess cash, if any, received by the
Trust from the Royalties and other sources (such as interest earned on any amounts reserved by the Trustee) that quarter, over the Trust's expenses for that quarter, subject in all cases to the
subordination and incentive provisions described above. Available funds are reduced by any cash the Trustee determines to hold as a reserve against future expenses or liabilities. The Trustee may
borrow funds required to pay expenses or liabilities if the Trustee determines that the cash on hand and the cash to be received are insufficient to cover the Trust's expenses or liabilities. If the
Trustee borrows funds, the Trust unitholders will not receive distributions until the borrowed funds are repaid.

Payments
to the Trust in respect of the Royalties are based on the complex provisions of the various conveyances held by the Trust, copies of which are filed as exhibits to this report,
and reference is hereby made to the text of the conveyances for the actual calculations of amounts due to the Trust.

The
Trust does not have any transactions, arrangements or other relationships with unconsolidated entities or persons that could materially affect the Trust's liquidity or the
availability of capital resources.

Off-Balance Sheet Arrangements

The Trust has no off-balance sheet arrangements. The Trust has not guaranteed the debt of any other party, nor does the
Trust have any other arrangements or relationships with other entities that could potentially result in unconsolidated debt, losses or contingent obligations other than the commodity hedge contracts
disclosed in the section "Quantitative and Qualitative Disclosures About Market Risk" in Item 7A of this Annual Report on Form 10-K.

Contractual Obligations

Pursuant to the Trust Agreement, the Trust is obligated to pay the Trustee an administrative fee of $150,000 per year, and the Trust is
obligated to pay the Delaware Trustee a fee of $2,400 per year.

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Additionally,
the Administrative Services Agreement provides that the Trust is obligated, throughout the term of the Trust, to pay to ECA each quarter an administrative services fee for accounting,
bookkeeping and informational services relating to the Royalties. The annual fee, payable in equal quarterly installments, is $60,000 per year.

New Accounting Pronouncements

None.

Critical Accounting Policies and Estimates

Significant Accounting Policies

The financial statements of the Trust differ from financial statements prepared in accordance with generally accepted accounting
principles in the United States of America ("GAAP") because certain cash reserves may be established for contingencies, which would not be accrued in financial statements prepared in accordance with
GAAP. Amortization of the investment in overriding royalty interests calculated on a unit-of-production basis is charged directly to Trust Corpus. This comprehensive basis of
accounting other than GAAP corresponds to the accounting permitted for royalty trusts by the U.S. Securities and Exchange Commission as specified by FASB ASC Topic 932 Extractive
ActivitiesOil and Gas: Financial Statements of Royalty Trusts.

Income
determined on the basis of GAAP would include all expenses incurred for the period presented. However, the Trust serves as a pass-through entity, with expenses for
depreciation, depletion, and amortization, interest and income taxes being based on the status and elections of the Trust unitholders. General and administrative expenses, production taxes or any
other allowable costs will only be charged to the Trust when cash has been paid for those expenses. In addition, the royalty interest is not burdened by field and lease operating expenses. Thus, the
statement purports to show distributable income, defined as income of the Trust available for distribution to the Trust unitholders before application of those additional unitholders' additional
expenses, if any, for depreciation, depletion, and amortization, interest and income taxes. The revenues are reflected net of existing royalties and overriding royalties and have been reduced by
gathering/post-production expenses.

Revenue and Expenses:

The Trust serves as a pass-through entity, with items of depletion, interest income and expense, and income tax attributes
being based upon the status and election of the unitholders. Thus, the Statements of Distributable Income purport to show Income available for distribution before application of those unitholders'
additional expenses, if any, for depletion, interest income and expense, and income taxes.

The
Trust uses the accrual basis to recognize revenue, with royalty income recorded as reserves are extracted from the Underlying Properties and sold. Expenses are recognized when paid.

Royalty Interest in Gas Properties:

The Royalty Interests in gas properties are assessed to determine whether their net capitalized cost is impaired, whenever events or
changes in circumstances indicate that its carrying amount may not be recoverable, pursuant to Accounting Standards Codification 360, Property, Plant and Equipment ("ASC 360"). The Trust will
determine if a write down is necessary to its investment in the Royalty Interests in gas properties to the extent that total capitalized costs, less accumulated amortization, exceed undiscounted
future net revenues attributable to proved gas reserves of the Underlying Properties. The Trust will then provide a write down to the extent that the net capitalized costs exceed the fair value of the
investment in net profits interests attributable to proved gas reserves of the

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Underlying
Properties. Any such write down would not reduce Distributable Income, although it would reduce Trust Corpus.

Significant
dispositions or abandonment of the Underlying Properties are charged to Royalty Interests and the Trust Corpus.

Amortization
of the Royalty Interests in gas properties is calculated on a units-of-production basis, whereby the Trust's cost basis in the properties is divided
by Trust total proved reserves to derive an amortization rate per reserve unit. Such amortization does not reduce Distributable Income, rather it is charged directly to Trust Corpus.
Revisions to estimated future units-of-production are treated on a prospective basis beginning on the date significant revisions are known.

The
conveyance of the Royalty Interests to the Trust was accounted for as a purchase transaction. The $352,100,000 reflected in the Statements of Assets, Liabilities and Trust Corpus as
Royalty Interests in Gas Properties represents 17,605,000 Trust Units valued at $20.00 per unit. The carrying value of the Trust's investment in the Royalty Interests is not necessarily indicative of
the fair value of such Royalty Interests.

Item 7A.Quantitative and Qualitative Disclosures About Market Risk

Hedge Contracts

The primary asset of and source of income to the Trust are the Royalties, which generally entitle the Trust to receive varying portions
of the net proceeds from gas production from the Underlying Properties. Consequently, the Trust is exposed to market risk from fluctuations in gas prices. Through March 31, 2014, however, the
Royalties are subject to the hedge contracts described below, which are expected to reduce the Trust's exposure to natural gas price volatility.

The
hedge contracts consist of natural gas derivative floor price contracts and a back-to-back swap agreement ECA entered into with the Trust to provide the Trust
with the benefit of certain contracts previously entered into between ECA and third parties that equate to approximately 50% of the estimated natural gas to be produced by the Trust properties from
April 1, 2010 through March 31, 2014. The swap contracts relate to approximately 7,500 MMBtu per day at a weighted average price of $6.78 per MMBtu for the period commencing as of
April 1, 2010 through June 30, 2012. The price of the floor price hedging contracts is $5.00 per MMBtu.

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The
following table sets forth the volumes of natural gas covered by the natural gas hedging contracts and the floor price for each quarter during the term of the contracts.

Swap Volume (MMBtu)

Swap Price (MMBtu)

Floor Volume (MMBtu)

Floor Price (MMBtu)Second Quarter 2010


682,500

$
6.75





Third Quarter 2010


690,000

$
6.75





Fourth Quarter 2010


690,000

$
6.75


225,000

$
5.00First Quarter 2011


675,000

$
6.75


159,000

$
5.00Second Quarter 2011


682,500

$
6.75


210,000

$
5.00Third Quarter 2011


690,000

$
6.82


405,000

$
5.00Fourth Quarter 2011


690,000

$
6.82


384,000

$
5.00First Quarter 2012


682,500

$
6.82


369,000

$
5.00Second Quarter 2012


682,500

$
6.82


516,000

$
5.00Third Quarter 2012








1,305,000

$
5.00Fourth Quarter 2012








1,362,000

$
5.00First Quarter 2013








1,395,000

$
5.00Second Quarter 2013








1,380,000

$
5.00Third Quarter 2013








1,278,000

$
5.00Fourth Quarter 2013








1,188,000

$
5.00First Quarter 2014








1,092,000

$
5.00


The
Trust's counterparties under the natural gas floor price contracts are Wells Fargo Foothill, Inc. and BP Energy Company, and its counterparty under the
back-to-back swap agreement is ECA, whose counterparties are also Wells Fargo Foothill, Inc. and BP Energy Company. In the event that any of the counterparties to the natural
gas hedging contracts default on their obligations to make payments to the Trust, the cash distributions to the Trust unitholders would likely be materially reduced as the hedge payments are intended
to provide additional cash to the Trust during periods of lower natural gas prices. ECA will have no continuing obligation with respect to the natural gas floor price contracts. However, ECA will be
the Trust's counterparty under the back-to-back swap agreement and will have continuing obligations with respect to this agreement.

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Item 8.Financial Statements and Supplementary Data.

Report of Independent Registered Public Accounting Firm

To
The Bank of New York Mellon Trust Company, N.A., as Trustee of
ECA Marcellus Trust I

We
have audited the accompanying statement of assets, liabilities, and trust corpus of ECA Marcellus Trust I (the Trust) as of December 31, 2010, and the related statements of
distributable income and trust corpus for the period from inception (March 19, 2010) to December 31, 2010. These financial statements are the responsibility of the trustee. Our
responsibility is to express an opinion on these financial statements based on our audit.

We
conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of material misstatement. We were not engaged to perform an audit of the Trust's internal control over financial reporting.
Our audit included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing
an opinion on the effectiveness of the Trust's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by the trustee, and evaluating the overall financial
statement presentation. We believe that our audit provides a reasonable basis for our opinion.

As
described in Note 3, the financial statements have been prepared on a modified cash basis of accounting, which is a comprehensive basis of accounting other than U.S. generally
accepted accounting principles.

In
our opinion, the statements referred to above present fairly, in all material respects, the financial position of ECA Marcellus Trust I as of December 31, 2010 and its
distributable income for the period from inception (March 19, 2010) to December 31, 2010, on the basis of accounting described in Note 3.

Pittsburgh,
Pennsylvania
February 28, 2011

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ECA Marcellus Trust I        Statement of Assets, Liabilities, and Trust Corpus        As of December 31, 2010

ASSETS:Cash

$
398,324Royalty income receivable


6,885,434Hedge proceeds receivable


2,032,620Floor price contracts


4,858,920Royalty interest in gas properties


352,100,000Accumulated amortization


(14,854,467
)Net royalty interest in gas properties


337,245,533Total Assets

$
351,420,831LIABILITIES AND TRUST CORPUS:Liabilities:Floor premiums payable

$
4,957,920Distributions payable to unitholders


8,809,013Incentive distribution payable to ECA


Floor costs payable to ECA as:Premium


Interest


Trust corpus; 13,203,750 common units and 4,401,250 subordinated units authorized and outstanding


337,653,898Total Liabilities and Trust Corpus

$
351,420,831


See
notes to the financial statements.

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ECA Marcellus Trust I        Statement of Distributable Income        For the Periods Ended December 31, 2010

(Audited)
From Inception

(Unaudited)
Three Months EndedRoyalty income

$
16,925,157

$
6,885,434Hedge proceeds


5,746,831


2,302,920Net proceeds to Trust

$
22,671,988

$
9,188,354General and administrative expense


(1,038,388
)

(379,750
)Interest income


409


409Income available for distribution prior to cash reserves and incentive calculation

$
21,634,009

$
8,809,013Cash reserves (withheld) released by Trustee


(500,000
)

Income available for distribution prior to incentive calculation

$
21,134,009

$
8,809,013Less:Incentive distribution to ECA


58,688


Floor cost reimbursement distribution to ECA as:Premium





Interest


58,688


Distributable income available to unitholders

$
21,016,633

$
8,809,013Distributable income per unit
(13,203,750 common units and 4,401,250 subordinated units authorized and outstanding)

$
1.193

$
0.500


See
notes to the financial statements.

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ECA Marcellus Trust I        Statement of Trust Corpus        As of December 31, 2010

Trust Corpus, Beginning of Period

$
10Issuance of trust units


352,100,000Cash reserves


500,000Distributable income


21,016,633Distributions paid or payable to unitholders


(21,009,278
)Amortization of royalty interest in gas properties


(14,854,467
)Amortization of floor contracts


(99,000
)Trust Corpus, End of Period

$
337,653,898


See
notes to the financial statements.

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Table of Contents

ECA MARCELLUS TRUST I        NOTES TO FINANCIAL STATEMENTS        FOR THE PERIODS ENDED DECEMBER 31, 2010

NOTE 1. Organization of the Trust

ECA Marcellus Trust I is a Delaware statutory trust formed in March 2010 by Energy Corporation of America ("ECA") to own royalty interests in fourteen producing horizontal natural gas
wells producing from the Marcellus Shale formation, all of which are online and are located in Greene County, Pennsylvania (the "Producing Wells") and royalty interests in 52 horizontal natural gas
development wells to be drilled to the Marcellus Shale formation (the "PUD Wells") within the "Area of Mutual Interest," or "AMI", comprised of approximately 9,300 acres held by ECA, of which it owns
substantially all of the working interests, in Greene County, Pennsylvania. The effective date of the Trust was April 1, 2010; consequently, the Trust received the proceeds of production
attributable to the PDP Royalty Interest from that date even though the PDP Royalty Interest was not conveyed to the Trust until the closing of the initial public offering on July 7, 2010. The
total number of units the Trust is authorized to issue is 17,605,000 units, of which 13,203,750 are common units and 4,401,250 are subordinated units. The royalty interests were conveyed from ECA's
working interest in the Producing Wells and the PUD Wells limited to the Marcellus Shale formation (the "Underlying Properties"). The royalty interest in the Producing Wells (the "PDP Royalty
Interest") entitles the Trust to receive 90% of the proceeds (exclusive of any production or development costs but after deducting post-production costs and any applicable taxes) from the
sale of production of natural gas attributable to ECA's interest in the Producing Wells. The royalty interest in the PUD Wells (the "PUD Royalty Interest" and collectively with the PDP Royalty
Interest, the "Royalty Interests") entitles the Trust to receive 50% of the proceeds (exclusive of any production or development costs but after deducting post-production costs and any
applicable taxes) from the sale of production of natural gas attributable to ECA's interest in the PUD Wells. Approximately 50% of the estimated natural gas production attributable to the Trust's
royalty interests has been hedged with a combination
of floors and swaps through March 31, 2014. The floor price contracts were transferred to the Trust by ECA, while ECA entered into a back-to-back swap agreement with the
Trust to provide the Trust with the benefit of swap contracts entered into between ECA and third parties. ECA will be entitled to recoup the costs of establishing the floor price contracts only if and
to the extent cash available for distribution by the Trust exceeds certain levels.

ECA
is obligated to drill all of the PUD Wells by March 31, 2013; however, in the event of delays, ECA will have until March 31, 2014 to fulfill its drilling obligation.
ECA has granted to the Trust a lien (the "Drilling Support Lien") on ECA's interest in the Marcellus Shale formation in the AMI (except the Producing Wells and any other wells which are already
producing and not subject to the Royalty Interests) in order to secure the estimated amount of the drilling costs for the Trust's interests in the PUD Wells. The amount obtained by the Trust pursuant
to the Drilling Support Lien may not exceed $91 million. As ECA fulfills its drilling obligation over time, the total dollar amount that may be recovered will be proportionately reduced and the
drilled PUD Wells will be released from the lien.

The
Trust is not responsible for any costs related to the drilling of development wells or any other development or operating costs. The Trust's cash receipts in respect of the royalties
will be determined after deducting post-production costs and any applicable taxes associated with the PDP and PUD Royalty Interests, and the Trust's cash available for distribution will
include cash receipts from its hedging contracts and will be reduced by Trust administrative expenses and expenses incurred as a result of being a publicly traded entity. Post-production
costs will generally consist of costs incurred to gather, compress, transport, process, treat, dehydrate and market the natural gas produced. Any charge payable to ECA for such
post-production costs on its Greene County Gathering System will be limited

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ECA MARCELLUS TRUST I

NOTES TO FINANCIAL STATEMENTS (Continued)

FOR THE PERIODS ENDED DECEMBER 31, 2010

NOTE 1. Organization of the Trust (Continued)

to
$0.52 per MMBtu gathered until ECA has fulfilled its drilling obligation (the "Post-Production Services Fee"); thereafter, ECA may increase the Post-Production Services Fee
to the extent necessary to recover certain capital expenditures in the Greene County Gathering System. Generally, the percentage of production proceeds to be received by the Trust with respect to a
well will equal the product of (i) the percentage of proceeds to which the Trust is entitled under the terms of the conveyances (90% for the Producing Wells and 50% for the PUD Wells)
multiplied by (ii) ECA's net revenue interest in the well. ECA on average owns an 81.53% net revenue interest in the Producing Wells. Therefore, the Trust will be entitled to receive on average
73.37% of the proceeds of production from the Producing Wells. With respect to a PUD Well, the conveyance related to the PUD Royalty Interest provides that the proceeds from the PUD Wells will be
calculated on the basis that the underlying PUD Wells are burdened only by interests that in total would not exceed 12.5% of the revenues from such properties, regardless of whether the royalty
interest owners are actually entitled to a greater percentage of revenues from such properties. As the applicable net revenue interest of a well is calculated by multiplying ECA's percentage working
interest in such well by the unburdened interest percentage (87.5%), assuming ECA owns a 100% working interest in a PUD Well, such well would have a minimum 87.5% net revenue interest. Accordingly,
the Trust would be entitled to 43.75% of the production proceeds from such well. To the extent ECA's working interest in a PUD well is less than 100%, the Trust's share of proceeds would be
proportionately reduced. Pursuant to the Development Agreement, however, ECA will only satisfy its drilling obligation when it has drilled 52 equivalent wells. Therefore, any reduction in production
proceeds attributable to a PUD Well caused by ECA having less than a 100% working
interest in the well will be offset by the requirement to drill additional wells to achieve a total of 52 equivalent wells.

The
Trust will make quarterly cash distributions of substantially all of its cash receipts, after deducting Trust administrative expenses and the costs incurred as a result of being a
publicly traded entity, on or about 60 days following the completion of each quarter through (and including) the quarter ending March 31, 2030 (the "Termination Date"). The first
quarterly distribution was made on August 31, 2010 to record unitholders as of August 16, 2010. The Trust will begin to liquidate on the Termination Date and will soon thereafter wind up
its affairs and terminate. At the Termination Date, 50% of each of the PDP Royalty Interest and the PUD Royalty Interest will revert automatically to ECA. The remaining 50% of each of the PDP Royalty
Interest and the PUD Royalty Interest will be sold, and the net proceeds will be distributed pro rata to the unitholders soon after the Termination Date. ECA will have a first right of refusal to
purchase the remaining 50% of the royalty interests at the Termination Date.

In
order to provide support for cash distributions on the common units, ECA has agreed to subordinate 4,401,250 of the Trust units it owns, which constitute 25% of the outstanding trust
units. The subordinated units are entitled to receive pro rata distributions from the Trust each quarter if and to the extent there is sufficient cash to provide a cash distribution on the common
units which is at least equal to the applicable quarterly subordination threshold. However, if there is not sufficient cash to fund such a distribution on all trust units, the distribution with
respect to the subordinated units will be reduced or eliminated for such quarter in order to make a distribution, to the extent possible, of up to the subordination threshold amount on the common
units. In exchange for agreeing to subordinate these trust units, and in order to provide additional financial incentive to ECA to perform its drilling obligation and operations on the Underlying
Properties in an efficient and cost-effective manner, ECA

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ECA MARCELLUS TRUST I

NOTES TO FINANCIAL STATEMENTS (Continued)

FOR THE PERIODS ENDED DECEMBER 31, 2010

NOTE 1. Organization of the Trust (Continued)

is
entitled to receive incentive distributions equal to 50% of the amount by which the cash available for distribution on all of the Trust units in any quarter exceeds 150% of the subordination
threshold for such quarter. ECA's right to receive the incentive distributions will terminate upon the expiration of the subordination period.

ECA
incurred costs of approximately $5.0 million for floor price contracts that were transferred to the Trust. ECA is entitled to reimbursement for these expenditures plus
interest accrued at 10% per annum only if and to the extent distributions to Trust unitholders would otherwise exceed the incentive threshold. This reimbursement will be deducted, over time, from the
50% of cash available for distribution in excess of the incentive thresholds otherwise payable to the Trust unitholders.

The
subordinated units will automatically convert into common units on a one-for-one basis and ECA's right to receive incentive distributions and to recoup the
reimbursement amount will terminate, at the end of the fourth full calendar quarter following ECA's satisfaction of its drilling obligation to the Trust. Accordingly, ECA bears the risk that it will
not be partially or fully reimbursed for the floor price contracts transferred to the Trust. ECA
currently expects that it will complete its drilling obligation on or before March 31, 2013 and that, accordingly, the subordinated units will convert into common units on or before
March 31, 2014. In the event of delays, it will have until March 31, 2014 under its contractual obligation to drill all the PUD Wells, in which event the subordinated units would convert
into common units on or before March 31, 2015. The period during which the subordinated units are outstanding is referred to as the "subordination period."

The
business and affairs of the Trust are managed by The Bank of New York Mellon Trust Company, N.A. as Trustee. Although ECA operates all of the Producing Wells and substantially all of
the PUD Wells, ECA has no ability to manage or influence the management of the Trust.

NOTE 2. Basis of Presentation

The preparation of financial statements requires the Trust to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent
assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Without limiting the foregoing statement, the information
furnished is based upon certain estimates of the revenues attributable to the Trust from natural gas production for the three month and inception to date periods ended December 31, 2010 and is
therefore subject to adjustment in future periods to reflect actual production for the periods presented.

NOTE 3. Significant Accounting Policies

The accompanying audited financial information has been prepared by the Trustee in accordance with the instructions to Form 10-K. The financial statements of the Trust
differ from financial statements prepared in accordance with generally accepted accounting principles in the United States of America ("GAAP") because certain cash reserves may be established for
contingencies, which would not be accrued in financial statements prepared in accordance with GAAP. Amortization of expired floor price contract premiums does not reduce Distributable Income, rather
it is charged directly to Trust Corpus. Amortization of the investment in overriding royalty interests calculated on a unit-of-production basis is charged directly to Trust
Corpus. This comprehensive basis of accounting

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ECA MARCELLUS TRUST I

NOTES TO FINANCIAL STATEMENTS (Continued)

FOR THE PERIODS ENDED DECEMBER 31, 2010

NOTE 3. Significant Accounting Policies (Continued)

other
than GAAP corresponds to the accounting permitted for royalty Trusts by the U.S. Securities and Exchange Commission as specified by FASB ASC Topic 932 Extractive ActivitiesOil and
Gas: Financial Statements of Royalty Trusts. Income determined on the basis of GAAP would include all expenses incurred for the period presented. However, the Trust serves as a
pass-through entity, with expenses for depreciation, depletion, and amortization, interest and income taxes being based on the status and elections of the Trust unitholders. General and
administrative expenses, production taxes or any other allowable costs are charged to the Trust only when cash has been paid for those expenses. In addition, the royalty interest is not burdened by
field and lease operating expenses. Thus, the statement purports to show distributable income, defined as income of the Trust available for distribution to the Trust unitholders before application of
those additional expenses, if any, for depreciation, depletion, and amortization, interest and income taxes. The revenues are reflected net of existing royalties and overriding royalties and have been
reduced by gathering/post-production expenses.

Cash:

Cash consists of highly liquid instruments with maturities at the time of acquisition of three months or less.

Use of Estimates in the Preparation of Financial Statements:

The preparation of financial statements requires the Trust to make estimates and assumptions that affect the reported amounts of assets
and liabilities and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Revenue and Expenses:

The Trust serves as a pass-through entity, with items of depletion, interest income and expense, and income tax attributes
being based upon the status and election of the unitholders. Thus, the Statements of Distributable Income purport to show Income available for distribution before application of those unitholders'
additional expenses, if any, for depletion, interest income and expense, and income taxes.

The
Trust uses the accrual basis to recognize revenue, with royalty income recorded as reserves are extracted from the Underlying Properties and sold. Expenses are recognized when paid.

Royalty Interest in Gas Properties:

The Royalty Interests in gas properties are assessed to determine whether their net capitalized cost is impaired, whenever events or
changes in circumstances indicate that its carrying amount may not be recoverable, pursuant to Accounting Standards Codification 360, Property, Plant and Equipment ("ASC 360"). The Trust will
determine if a writedown is necessary to its investment in the Royalty Interests in gas properties to the extent that total capitalized costs, less accumulated amortization, exceed undiscounted future
net revenues attributable to proved gas reserves of the Underlying Properties. The Trust will then provide a writedown to the extent that the net capitalized costs exceed the fair value of the
investment in net profits interests attributable to proved gas reserves of the Underlying Properties. Any such writedown would not reduce Distributable Income, although it would

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ECA MARCELLUS TRUST I

NOTES TO FINANCIAL STATEMENTS (Continued)

FOR THE PERIODS ENDED DECEMBER 31, 2010

NOTE 3. Significant Accounting Policies (Continued)

reduce
Trust Corpus. No impairment in the Underlying Properties was recognized during the periods ended December 31, 2010. Significant dispositions or abandonment of the Underlying Properties
are charged to Royalty Interests and the Trust Corpus.

Amortization
of the Royalty Interests in gas properties is calculated on a units-of-production basis, whereby the Trust's cost basis in the properties is divided
by Trust total proved reserves to derive an amortization rate per reserve unit. Such amortization does not reduce Distributable Income, rather it is charged directly to Trust Corpus. Revisions to
estimated future units-of-production are treated on a prospective basis beginning on the date significant revisions are known.

The
conveyance of the Royalty Interests to the Trust was accounted for as a purchase transaction. The $352,100,000 reflected in the Statements of Assets, Liabilities and Trust Corpus as
Royalty Interests in Gas Properties represents 17,605,000 Trust Units valued at $20.00 per unit. The carrying value of the Trust's investment in the Royalty Interests is not necessarily indicative of
the fair value of such Royalty Interests.

Accrued Interest Payable:

Accrued interest payable to ECA by the Trust is calculated at 10% per annum on the outstanding balance of the floor contract premiums
payable, but is not recorded by the Trust until paid. As of December 31, 2010, the amount of unrecorded accrued interest payable to ECA was $313,156.

NOTE 4. Commodity Hedges

The Trust is exposed to risk fluctuations in energy prices in the normal course of operations. ECA conveyed to the Trust natural gas derivative floor price contracts and entered into a
back-to-back swap agreement with the Trust which conveyed the benefit of certain swap agreements which ECA had previously entered into with third parties. The volumes covered
by these agreements equate to approximately 50% of the estimated natural gas to be produced by the Trust properties through March 31, 2014. The swap contracts relate to approximately 7,500
MMBtu per day at a weighted average price of $6.78 per MMBtu for the period from April 1, 2010 through June 30, 2012. The price of the floor hedging contracts is $5.00 per MMBtu on a
total volume of 11,268,000 MMBtu for the period from October 1, 2010 through March 31, 2014. The Trust uses the cash method to account for commodity contracts. Under this method, gains
or losses associated with the contracts are recognized at the time the hedged production occurs. Hedge proceeds realized for the quarter and inception to date for the periods ended December 31,
2010 totalled $2,302,920 and $5,746,831, respectively. The fair market values of the commodity contracts are not included in the accompanying financial statements, as the statements are presented on a
modified cash basis of accounting.

NOTE 5. Income Taxes

The Trust is a Delaware statutory trust, which is taxed as a partnership for federal and state income taxes. Accordingly, no provision for federal or state income taxes has been made.

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ECA MARCELLUS TRUST I

NOTES TO FINANCIAL STATEMENTS (Continued)

FOR THE PERIODS ENDED DECEMBER 31, 2010

NOTE 6. Related Party Transactions

Trustee Administrative Fee:

Under the terms of the Trust Agreement, the Trust pays an annual administrative fee of $150,000 to the Trustee, which may be adjusted
beginning on the fifth anniversary of the Trust as provided in the Trust Agreement. These costs, as well as those to be paid to ECA pursuant to the Administrative Services Agreement referred to below,
will be deducted by the Trust in the period paid. The Trustee waived its administrative fee for the quarter ended June 30, 2010, but does not intend to waive the fee for any other quarter.

Administrative Services Fee:

The Trust entered into an Administrative Services Agreement with ECA that obligates the Trust to pay ECA each quarter an administrative
services fee for accounting, bookkeeping and informational services to be performed by ECA on behalf of the Trust relating to the Royalties. The annual fee of $60,000 is payable in equal quarterly
installments. After the completion of ECA's drilling obligation, under certain circumstances, ECA and the Trustee each may terminate the Administrative Services Agreement at any time following
delivery of notice no less than 90 days prior to the date of termination. ECA waived its administrative services fee for the quarter ended June 30, 2010, but does not intend to waive the
fee for any other quarter.

Drilling Support Lien:

As described in Note 1, ECA has granted to the Trust the Drilling Support Lien on ECA's interest in the Marcellus Shale
formation in the AMI (except the Producing Wells and any other wells which are already producing and not subject to the Royalty Interests) in order to secure the estimated amount of the drilling costs
for the Trust's interests in the PUD Wells. The Drilling Support Lien is limited to $91 million, and as ECA fulfills its drilling obligation over time, the total dollar amount is to be
proportionately reduced. As of December 31, 2010, ECA had received a partial release of the Drilling Support Lien in the amount of approximately $16.9 million.

NOTE 7. Subsequent Events

As of February 23, 2011, two additional PUD wells had been brought online by ECA that were producing 2,653 Mcf per day net to the Trust's interest. Also, twelve additional PUD
wells have been drilled and are undergoing or awaiting completion operations.

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Supplemental Reserve Information (Unaudited):

Information
regarding estimates of the proved gas reserves attributable to the Trust are based on reports prepared by independent petroleum engineering
consultants. Such estimates were prepared in accordance with guidelines established by the Securities and Exchange Commission. Accordingly, the estimates were based on existing economic and operating
conditions. Numerous uncertainties are inherent in estimating reserve volumes and values and such estimates are subject to change as additional information becomes available.

The
reserves actually recovered and the timing of production of these reserves may be substantially different from the original estimates.

The
standardized measure of discounted future net cash flows was determined based on reserve estimates prepared by the independent petroleum engineering consultants, Ryder Scott.

The
following table reconciles the estimated quantities of the proved natural gas reserves attributable to the Trust's interest from inception of the Trust to December 31, 2010:

Natural Gas
(Mmcf)Proved reserves:Balance at Inception


108,640Revisions of previous estimates


(1,608
)Production


(4,583
)December 31, 2010


102,449Proved developed reserves:December 31, 2010


42,487


Standardized
Measure of Discounted Future Net Cash Flows Relating to Proved Reserves:

The
standardized measure of discounted future net cash flows relating to proved oil and gas reserves and the changes in standardized measure of discounted future net cash flows relating
to proved oil and gas reserves were prepared in accordance with the provisions of FASB ASC topic Extractive ActivitiesOil and Gas. Future cash inflows were computed by applying prices at
year end to estimated future production.

The
following is the standardized measure of discounted future net cash flows as of December 31, 2010 (in thousands):

2010Future cash inflows

$
475,909Future production taxes


Future production costs


(54,872
)Future net cash flows before discount


421,03710% discount to present value


(189,795
)Standardized measure of discounted future net cash flows related to proved oil and gas reserves(1)

$
231,242


(1)No
provision for federal or state income taxes has been provided for in the calculation because taxable income is passed through to the unitholders of the
Trust.


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Changes
in Standardized Measure of Discounted Future Net Cash Flows:

The
following schedule reconciles the changes from inception to December 31, 2010 in the standardized measure of discounted future net cash flows relating to proved reserves (in
thousands):

2010Standardized measure of discounted future net cash flows at inception of Trust

$
205,875Net proceeds to the Trust


(22,672
)Revisions of previous estimates


(3,629
)Accretion of discount


20,587Net change in price and production cost


37,682Other


(6,601
)Standardized measure of discounted future net cash flows at end of period

$
231,242


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Item 9.Changes in and Disagreements with Accountants on Accounting and Financial  Disclosure.

None.

Item 9A.Controls and Procedures.

Evaluation of Disclosure Controls and Procedures.The Trustee maintains disclosure controls and procedures designed to ensure that
information
required to be disclosed by the Trust in the reports that it files or submits under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time
periods specified in the SEC's rules and regulations promulgated by the SEC. Disclosure controls and procedures include controls and procedures designed to ensure that information required to be
disclosed by the Trust is accumulated and communicated by ECA to The Bank of New York Mellon Trust Company, N.A., as Trustee of the Trust, and its employees who participate in the preparation of the
Trust's periodic reports as appropriate to allow timely decisions regarding required disclosure.

As
of the end of the period covered by this report, the Trustee carried out an evaluation of the Trustee's disclosure controls and procedures. Mike Ulrich, as Trust Officer of the
Trustee, has concluded that the disclosure controls and procedures of the Trust are effective.

Due
to the contractual arrangements of the Trust Agreement and the conveyances, the Trustee relies on (i) information provided by ECA, including historical operating data, plans
for future operating and capital expenditures, reserve information and information relating to projected production, and (ii) conclusions and reports regarding reserves by the Trust's
independent reserve engineers. See "Trustee's Discussion and Analysis of Financial Condition and Results of Operations" in this Annual Report on Form 10-K, for a description of
certain risks relating to these arrangements and reliance on information when reported by ECA to the Trustee and recorded in the Trust's results of operation.

Changes in Internal Control over Financial Reporting.During the quarter ended December 31, 2010, there has been no change in the
Trustee's
internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Trustee's internal control over financial reporting relating to the Trust. The
Trustee notes for purposes of clarification that it has no authority over, and makes no statement concerning, the internal control over financial reporting of ECA.

This
Form 10-K does not include a report of the Trust's assessment regarding internal control over financial reporting.

Item 9B.Other Information.

None.

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PART III

Item 10.Directors, Executive Officers and Corporate Governance.

The
Trust has no directors or executive officers. The Trustee is a corporate Trustee that may be removed by the affirmative vote of the holders of not less
than a majority of the outstanding Trust units at a meeting at which a quorum is present.

Section 16(a) Beneficial Ownership Reporting Compliance

Section 16(a) of the Exchange Act of 1934 requires the holders of more than 10 percent of the Trust units to file with
the SEC reports regarding their ownership and changes in ownership of the Trust units. The Trustee is not aware of any 10 percent unitholder having failed to comply with all
Section 16(a) filing requirements in 2010.

Audit Committee and Nominating Committee

Because the Trust does not have a board of directors, it does not have an audit committee, an audit committee financial expert or a
nominating committee.

Code of Ethics

The Trust does not have a principal executive officer, principal financial officer, principal accounting officer or controller and,
therefore, has not adopted a code of ethics applicable to such persons. However, employees of the Trustee must comply with the bank's code of ethics.

Item 11.Executive Compensation.

During the year ended December 31, 2010 the Trustee received administrative fees from the Trust pursuant to the Trust Agreement.
The Trust does not have any executive officers, directors or employees. Because the Trust does not have a board of directors, it does not have a compensation committee.

Item 12.Security Ownership of Certain Beneficial Owners and Management and Related Unitholder Matters.

Based
on filings with the SEC, the Trustee is not aware of any holders of 5% or more of the units except as set forth below. The following information has been obtained from filings with
the SEC on Schedule 13D and/or Schedule13G.

Beneficial Owner

Trust Common Units
Beneficially
Owned

Percent
of ClassEnergy Corporation of America


3,001,733


22.7


In
addition, as described elsewhere in this report, Energy Corporation of America is the beneficial owner of 4,401,250 Subordinated Units in the Trust.

Not
applicable.

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The
registrant knows of no arrangement, including any pledge by any person of securities of the registrant or any of its parents, the operation of which may at a subsequent date result
in a change of control of the registrant.

Item 13.Certain Relationships, Related Transactions and Director Independence.

Development Agreement

Under the terms of the Development Agreement, ECA is obligated to drill all of the PUD Wells by March 31, 2013. In the event of
delays, ECA will have until March 31, 2014 to fulfill its drilling obligation. In order to secure the estimated amount of the drilling costs for the Trust's interests in the PUD Wells, ECA
granted to the Trust a lien on ECA's interest in the Marcellus Shale formation in the AMI, excluding the Producing Wells and any other wells which were producing and not subject to the Royalties.

Administrative Services

Under the terms of the Administrative Services Agreement, the Trust pays a quarterly administration fee of $15,000 to ECA. General and
administrative expenses in the Trust's statements of distributable income for the twelve months ending December 31, 2010 include $30,000 for quarterly administrative fees paid to ECA. ECA
elected to waive its $15,000 Administrative Services Fee for the quarter ended June 30, 2010.

After
the completion of ECA's drilling obligation, ECA and the Trustee each may terminate the provisions of the Administrative Services Agreement relating to the provision by ECA of
administrative services at any time following delivery of notice no less than 90 days prior to the date of termination.

Trustee Administration Fee

Under the terms of the Trust Agreement, the Trust pays an annual administrative fee to the Trustee of $150,000, paid in four quarterly
installments of $37,500. The Trust also pays an annual administrative fee to the Delaware Trustee of $2,400. General and administrative expenses in the Trust's statements of distributable income for
the twelve months ending December 31, 2010 include $37,500 for quarterly administrative fees paid to the Trustee. The Trustee elected to waive its $37,500 Trustee Administrative Fee for the
quarter ended June 30, 2010 and the $37,500 Trustee Administrative Fee for the quarter ended December 31, 2010 was not paid to the Trustee until January 2011.

Registration Rights

The Trust has entered into a registration rights agreement for the benefit of ECA, John Mork and certain of his affiliates in
connection with ECA's conveyance to the Trust of the PDP Royalty Interest and the PUD Royalty Interest. In the registration rights agreement, the Trust agreed, for the benefit of ECA, John Mork and
certain of his affiliates and any of their transferees (each, a "holder"), to register the Trust units it holds. Specifically, the Trust has agreed:



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ECA,
John Mork and certain of his affiliates will have the right to require the Trust to file no more than three registration statements in aggregate.

In
connection with the preparation and filing of any registration statement, ECA will bear all costs and expenses incidental to any registration statement, excluding certain internal
expenses of the Trust, which will be borne by the Trustee, and any underwriting discounts and commissions, which will be borne by the seller of the Trust units.

Director Independence

The Trust does not have a board of directors.

Item 14.Principal Accountant Fees and Services.

The Trust does not have an audit committee. Any pre-approval and approval of all services performed by the principal
auditor or any other professional service firms and related fees are granted by the Trustee. The Trustee has appointed Ernst & Young LLP as the independent registered public accounting
firm to audit the Trust's financial statements for the fiscal year ending December 31, 2011. During fiscal 2010, Ernst & Young LLP served as the Trust's independent registered
public accounting firm.

The
following table presents the aggregate fees billed to the Trust for the fiscal year ended December 31, 2010 by Ernst & Young LLP:

Audit fees(1)

$
125,000Audit-related fees


Tax fees


150,000All other fees


Total fees

$
275,000


(1)Fees
for audit services in 2010 included fees for the reviews of the Trust's quarterly financial statements.


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PART IV

Item 15.Exhibits and Financial Statement Schedules



The following financial statements are set forth under "Financial Statements and Supplementary Data" in Item 8 of this Annual
Report on Form 10-K on the pages indicated:



Report of Independent Registered Public Accounting Firm

65Statements of Assets, Liabilities and Trust Corpus as of December 31, 2010

66Statements of Distributable Income for the Periods Ended December 31, 2010

67Statements of Trust Corpus as of December 31, 2010

68Notes to Financial Statements

69Supplemental Reserve Information (Unaudited)

75




Schedules have been omitted because they are not required, not applicable or the information required has been included elsewhere
herein.



See Exhibit Index.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this
report to be signed on its behalf by the undersigned, thereunto duly authorized.

ECA MARCELLUS TRUST IBy

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.By:

/s/ MIKE ULRICH Mike Ulrich Vice President


February 28,
2011

The
Registrant, ECA Marcellus Trust I, has no principal executive officer, principal financial officer, board of directors or persons performing similar functions. Accordingly, no
additional signatures are available and none have been provided. In signing the report above, the Trustee does not imply that it has performed any such function or that such function exists pursuant
to the terms of the Trust Agreement under which it serves.

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Appendix A

GRAPHIC

December 20,
2010

ECA
Marcellus Trust I
The Bank of New York Mellon Trust Company, N.A.
919 Congress Avenue
Suite 500
Austin, Texas 78701

Gentlemen:

At
your request, Ryder Scott Company (Ryder Scott) has prepared an estimate of the proved reserves, future production, and income attributable to certain royalty interests of ECA
Marcellus Trust I as of December 31, 2010. The subject properties are located in the state of Pennsylvania. The reserves and income data were estimated based on the definitions and
disclosure guidelines of the United States Securities and Exchange Commission (SEC) contained in Title 17, Code of Federal Regulations, Modernization of Oil and Gas Reporting, Final Rule released
January 14, 2009 in the Federal Register (SEC regulations). The results of our third party study, completed on December 20, 2010, are presented herein. The properties reviewed by Ryder
Scott represent 100 percent of the total net proved gas reserves of ECA Marcellus Trust I.

The
estimated reserves and future net income amounts presented in this report, as of December 31, 2010 are related to hydrocarbon prices. The hydrocarbon prices used in the
preparation of this report are based on the average prices during the 12-month period prior to the ending date of the period covered in this report, determined as unweighted arithmetic
averages of the prices in effect on the first-day-of-the-month for each month within such period, unless prices were defined by contractual arrangements
as required by the SEC regulations. Actual future prices may vary significantly from the prices required by SEC regulations; therefore, volumes of reserves actually recovered and the amounts of income
actually received may differ significantly from the estimated quantities presented in this report. The results of this study are summarized below.

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SEC PARAMETERSEstimated Net Reserves and Income Data  Certain and Royalty Interests of  ECA Marcellus Trust I  As of December 31, 2010

ProvedDevelopedProducing

Non-Producing

Undeveloped

Total ProvedNet Remaining ReservesGasMMCF


38,151


4,335


59,963


102,449Income DataFuture Gross Revenue

$
177,224,127

$
20,138,777

$
278,545,731

$
475,908,635Deductions


20,433,824


2,321,988


32,116,137


54,871,949Future Net Income (FNI)

$
156,790,303

$
17,816,789

$
246,429,594

$
421,036,686Discounted FNI @ 10%

$
88,223,682

$
10,533,827

$
132,484,986

$
231,242,495


All
gas volumes are reported on an as "sold basis" expressed in millions of cubic feet (MMCF) at the official temperature and pressure bases of the areas in which the gas reserves are
located.

The
estimates of the reserves, future production, and income attributable to properties in this report were prepared using the economic software package PHDWin Petroleum Economic
Evaluation Software, a copyrighted program of TRC Consultants L.C. Ryder Scott has found this program to be generally acceptable, but notes that certain summaries and calculations may vary due to
rounding and may not exactly match the sum of the properties being summarized. Furthermore, one line economic summaries may vary slightly from the more detailed cash flow projections of the same
properties, also due to rounding. The rounding differences are not material.

The
future gross revenue is normally after the deduction of production taxes but in the State of Pennsylvania this is zero. For ECA Marcellus Trust I, the deductions only incorporate gas
transportation costs since the Trust will own only a royalty interest. The future net income is before the deduction of state and federal income taxes and general administrative overhead, and has not
been adjusted for outstanding loans that may exist nor does it include any adjustment for cash on hand or undistributed income. Gas reserves account for the remaining 100 percent of total
future gross revenue from proved reserves.

The
discounted future net income shown above was calculated using a discount rate of 10 percent per annum compounded monthly. Future net income was discounted at four other
discount rates, which were also compounded monthly. These results are shown in summary form as follows.

Discount Rate
Percent

Discounted Future Net Income
As of December 31, 2010
Total Proved5

$
298,155,9848

$
253,886,53612

$
212,492,88015

$
189,752,408


The
results shown above are presented for your information and should not be construed as our estimate of fair market value.

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Reserves Included in This Report

The proved reserves included herein conform to the definitions as set forth in the Securities and Exchange Commission's Regulations
Part 210.4-10(a). An abridged version of the SEC reserves definitions from 210.4-10(a) entitled "Petroleum Reserves Definitions" is included as an attachment to this
report.

The
various reserve status categories are defined in the attachment to this report entitled "Petroleum Reserves Definitions." The developed proved non-producing reserves
included herein consist of the behind-pipe category.

No
attempt was made to quantify or otherwise account for any accumulated gas production imbalances that may exist. The gas volumes included herein do not attribute gas consumed in
operations as reserves.

Reserves
are those estimated remaining quantities of petroleum which are anticipated to be economically producible, as of a given date, from known accumulations under defined conditions.
All reserve estimates involve some degree of uncertainty. The uncertainty depends chiefly on the amount of reliable geologic and engineering data available at the time of the estimate and the
interpretation of
these data. The relative degree of uncertainty may be conveyed by placing reserves into one of two principal classifications, either proved or unproved. Unproved reserves are less certain to be
recovered than proved reserves and may be further sub-classified as probable and possible reserves to denote progressively increasing uncertainty in their recoverability. At ECA Marcellus
Trust I's request, this report addresses only the proved reserves attributable to the properties evaluated herein.

Proved
oil and gas reserves are those quantities of oil and gas, which, by analysis of geoscience and engineering data, can be estimated with reasonable certainty to be economically
producible from a given date forward. The reserves included herein were estimated using deterministic methods.

Reserves
estimates will generally be revised as additional geologic or engineering data become available or as economic conditions change. Moreover, estimates of reserves may increase or
decrease as a result of future operations, effects of regulation by governmental agencies or geopolitical or economic risks. As a result, the estimates of oil and gas reserves have an intrinsic
uncertainty. The reserves included in this report are therefore estimates only and should not be construed as being exact quantities. They may or may not be actually recovered, and if recovered, the
revenues therefrom, and the actual costs related thereto, could be more or less than the estimated amounts.

ECA
Marcellus Trust I's operations may be subject to various levels of governmental controls and regulations. These controls and regulations may include matters relating to drilling,
production practices, environmental protection, pricing policies, various taxes and levies including income tax and are subject to change from time to time. Such changes in governmental regulations
and policies may cause volumes of reserves actually recovered and amounts of income actually received to differ from the estimated quantities.

The
estimates of reserves presented herein were based upon a detailed study of the properties in which ECA Marcellus Trust I as of December 31, 2010 owns an interest; however, we
have not made any field examination of the properties. No consideration was given in this report to potential environmental liabilities that may exist nor were any costs included for potential
liability to restore and clean up damages, if any, caused by past operating practices.

Estimates of Reserves

The estimation of reserves involves two distinct determinations. The first determination results in the estimation of the quantities of
recoverable oil and gas and the second determination results in the estimation of the uncertainty associated with those estimated quantities in accordance with the

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definitions
set forth by the Securities and Exchange Commission's Regulations Part 210.4-10(a). The process of estimating the quantities of recoverable oil and gas reserves relies
on the use of certain generally accepted analytical procedures. These analytical procedures fall into three broad categories or methods: (1) performance-based methods,
(2) volumetric-based methods and (3) analogy. These methods may be used singularly or in combination by the reserve evaluator in the process of estimating the quantities of reserves. The
reserve evaluator must select the method or combination of methods which in their professional judgment is most appropriate given the nature and amount of reliable geoscience and engineering data
available at the time of the estimate, the established or anticipated performance characteristics of the reservoir being evaluated and the stage of development or producing maturity of the property.

In
many cases, the analysis of the available geoscience and engineering data and the subsequent interpretation of this data may indicate a range of possible outcomes in an estimate
irrespective of the method selected by the evaluator. When a range in the quantity of reserves is identified, the evaluator must determine the uncertainty associated with the incremental quantities of
the reserves. If the reserve quantities are estimated using the deterministic incremental approach, the uncertainty for each discrete incremental quantity of the reserves is addressed by the reserve
category assigned by the evaluator. Therefore, it is the categorization of reserve quantities as proved, probable and/or possible that addresses the inherent uncertainty in the estimated quantities
reported. All quantities of reserves within the same reserve category have the same level of uncertainty under the SEC definitions.

Estimates
of reserves quantities and their associated reserve categories may be revised in the future as additional geoscience or engineering data become available. Furthermore,
estimates of reserves quantities and their associated reserve categories may also be revised due to other factors such as changes in economic conditions, results of future operations, effects of
regulation by governmental agencies or economic risks as previously noted herein.

The
reserves for the properties included herein were estimated by performance methods or by analogy. In general, reserves attributable to producing wells were estimated by performance
methods such as decline curve analysis which utilized extrapolations of historical production through November, 2010. In certain cases, producing reserves were estimated by a combination of
performance and analogy if there was inadequate historical performance data to establish a definitive trend and where the use of production performance data as the sole basis for the reserve estimates
was considered to be
inappropriate. Reserves attributable to non-producing and undeveloped reserves included herein were estimated by the analogy method which utilized all pertinent well and seismic data
available through November, 2010.

To
estimate economically recoverable oil and gas reserves and related future net cash flows, we consider many factors and assumptions including, but not limited to, the use of reservoir
parameters derived from geological and engineering data which cannot be measured directly, economic criteria based on current costs and SEC pricing requirements, and forecasts of future production
rates. Under the SEC regulations 210.4-10(a)(22)(v) and (26), proved reserves must be anticipated to be economically producible based on existing economic conditions including the
prices and costs at which economic producibility from a reservoir is to be determined. While it may reasonably be anticipated that the future prices received for the sale of production and the
operating costs and other costs relating to such production may also increase or decrease from existing levels, such changes were, in accordance with rules adopted by the SEC, omitted from
consideration in making this evaluation.

Energy
Corporation of America has informed us that they have furnished us all of the accounts, records, geological and engineering data, and reports and other data required for this
investigation. In preparing our forecast of future production and income, we have relied upon data furnished by Energy Corporation of America with respect to property interests owned, production and
well tests from examined wells, normal direct costs of operating the wells or leases, other costs such as transportation

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and/or
processing fees, ad valorem and production taxes, completion and development costs, product prices based on the SEC regulations. Ryder Scott reviewed such factual data for its reasonableness;
however, we have not conducted an independent verification of the data supplied by Energy Corporation of America. We consider the assumptions, data, methods and procedures used in this report
appropriate for the purpose hereof, and we have used all such methods and procedures that we consider necessary and appropriate to prepare the estimates of reserves and future net revenues herein.

Future Production Rates

Our forecasts of future production rates are based on historical performance from wells now on production. Test data and other related
information were used to estimate the anticipated initial production rates for those wells or locations that are not currently producing. If no production decline trend has been established, future
production rates were held constant, or adjusted for the effects of curtailment where appropriate, until a decline in ability to produce was anticipated. An estimated rate of decline was then applied
to depletion of the reserves. If a decline trend has been established, this trend was used as the basis for estimating future production rates. For reserves not yet on production, sales were estimated
to commence at an anticipated date furnished by Energy Corporation of America.

The
future production rates from wells now on production may be more or less than estimated because of changes in market demand or allowables set by regulatory bodies. Wells or locations
that are not currently producing may start producing earlier or later than anticipated in our estimates.

Hydrocarbon Prices

The hydrocarbon prices used herein are based on SEC price parameters using the average prices during the 12-month period
prior to the ending date of the period covered in this report, determined as the unweighted arithmetic averages of the prices in effect on the
first-day-of-the-month for each month within such period, unless prices were defined by contractual arrangements. For hydrocarbon products sold under
contract, the contract prices, including fixed and determinable escalations, exclusive of inflation adjustments, were used until expiration of the contract. Upon contract expiration, the prices were
adjusted to the 12-month unweighted arithmetic average as previously described.

Energy
Corporation of America furnished us with the above mentioned average prices in effect on December 31, 2010. These initial SEC hydrocarbon prices were determined using the
12-month average first-day-of-the-month benchmark prices appropriate to the geographic area where the hydrocarbons are sold. These benchmark
prices are prior to the adjustments for differentials as described herein. The table below summarizes the "benchmark prices" and "price reference" used for the geographic area(s) included in the
report. In certain geographic areas, the price reference and benchmark prices may be defined by contractual arrangements.

The
product prices that were actually used to determine the future gross revenue for each property reflect adjustments to the benchmark prices for gravity, quality, local conditions,
and/or distance from market, referred to herein as "differentials." The differentials used in the preparation of this report were furnished to us by Energy Corporation of America.

In
addition, the table below summarizes the net volume weighted benchmark prices adjusted for differentials and referred to herein as the "average realized prices." The average realized
prices shown in the table below were determined from the total future gross revenue before production taxes and the

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total
net reserves for the geographic area and presented in accordance with SEC disclosure requirements for each of the geographic areas included in the report.

Geographic Area

Product

Price
Reference

Average
Benchmark
Prices

Average
Realized
PricesUnited States

Gas

Henry Hub
Colorado Interstate

$
4.38/MMBTU

$
4.65/MCF


The
effects of derivative instruments designated as price hedges of oil and gas quantities are not reflected in our individual property evaluations.

Costs

Operating costs for the leases and wells in this report are supplied by Energy Corporation of America and include only those costs
directly applicable to the leases or wells. The operating costs include a portion of general and administrative costs allocated directly to the leases and wells. For operated properties, the operating
costs include an appropriate level of corporate general administrative and overhead costs. No deduction was made for loan repayments, interest expenses, or exploration and development prepayments that
were not charged directly to the leases or wells.

Development
costs were furnished to us by Energy Corporation of America and are based on authorizations for expenditure for the proposed work or actual costs for similar projects. Energy
Corporation of America's estimates of zero abandonment costs after salvage value were used in this
report. Ryder Scott has not performed a detailed study of the abandonment costs or the salvage value and makes no warranty forEnergy Corporation of
America's estimate.

Because
of the direct relationship between volumes of proved undeveloped reserves and development plans, we include in the proved undeveloped category only reserves assigned to
undeveloped locations that we have been assured will definitely be drilled. Energy Corporation of America has assured us of their intent and ability to proceed with the development activities included
in this report, and that they are not aware of any legal, regulatory, political or economic obstacles that would significantly alter their plans.

Current
costs used by Energy Corporation of America were held constant throughout the life of the properties.

It
should be noted that ECA Marcellus Trust I, which owns only a royalty interest, is only subject to the gas transportation costs and all other costs are paid by the working interest
owners and for this analysis only impact the calculation of the economic limit of the properties.

Standards of Independence and Professional Qualification

Ryder Scott is an independent petroleum engineering consulting firm that has been providing petroleum consulting services throughout
the world for over seventy years. Ryder Scott is employee-owned and maintains offices in Houston, Texas; Denver, Colorado; and Calgary, Alberta, Canada. We have over eighty engineers and geoscientists
on our permanent staff. By virtue of the size of our firm and the large number of clients for which we provide services, no single client or job represents a material portion of our annual revenue. We
do not serve as officers or directors of any publicly-traded oil and gas company and are separate and independent from the operating and investment decision-making process of our clients. This allows
us to bring the highest level of independence and objectivity to each engagement for our services.

Ryder
Scott actively participates in industry related professional societies and organizes an annual public forum focused on the subject of reserves evaluations and SEC regulations. Many
of our staff

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have
authored or co-authored technical papers on the subject of reserves related topics. We encourage our staff to maintain and enhance their professional skills by actively participating
in ongoing continuing education.

Prior
to becoming an officer of the Company, Ryder Scott requires that staff engineers and geoscientists have received professional accreditation in the form of a registered or certified
professional engineer's license or a registered or certified professional geoscientist's license, or the equivalent thereof, from an appropriate governmental authority or a recognized
self-regulating professional organization.

We
are independent petroleum engineers with respect to ECA Marcellus Trust I as of December 31, 2010. Neither we nor any of our employees have any interest in the subject
properties, and neither the employment to do this work nor the compensation is contingent on our estimates of reserves for the properties which were reviewed.

The
professional qualifications of the undersigned, the technical person primarily responsible for evaluating the reserves information discussed in this report, are included as an
attachment to this letter.

Terms of Usage

The results of our third party study, presented in report form herein, were prepared in accordance with the disclosure requirements set
forth in the SEC regulations and intended for public disclosure as an exhibit in filings made with the SEC by ECA Marcellus Trust I.

We
have provided ECA Marcellus Trust I with a digital version of the original signed copy of this report letter. In the event there are any differences between the digital version
included in filings made by ECA Marcellus Trust I and the original signed report letter, the original signed report letter shall control and supersede the digital version.

The
data and work papers used in the preparation of this report are available for examination by authorized parties in our offices. Please contact us if we can be of further service.

This
report was prepared for the exclusive use and sole benefit of ECA Marcellus Trust I as of December 31, 2010 and may not be put to other use without our prior written consent
for such use. The data and work papers used in the preparation of this report are available for examination by authorized parties in our offices. Please contact us if we can be of further service.

Very truly yours,RYDER SCOTT COMPANY, L.P.TBPE Firm Registration No. F-1580/s/ LARRY T. NELMS Larry T. Nelms, P.E.                        [SEAL] Managing Vice
President


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Professional Qualifications of Primary Technical Person

The conclusions presented in this report are the result of technical analysis conducted by teams of geoscientists and engineers from
Ryder Scott Company, L.P. Larry Thomas Nelms is the primary technical person responsible for the estimate of the reserves, future production and income.

Nelms,
an employee of Ryder Scott Company L.P. (Ryder Scott) since 1983, is a Managing Senior Vice President and also serves as a member of the Board of Directors, responsible for
coordinating and supervising staff and consulting engineers of the company in ongoing reservoir evaluation studies worldwide. Before joining Ryder Scott, Nelms served in a number of engineering
positions with Dome Petroleum, Mizel Petro Resources and Exxon. For more information regarding Mr. Nelms' geographic and job specific experience, please refer to the Ryder Scott Company website
at www.ryderscott.com/Experience/Employees.

Nelms
earned a Bachelor of Science degree in Mechanical Engineering from Mississippi State University in 1963 and a Master of Science from the University of New Mexico in 1965, and he is
a registered Professional Engineer in the State of Colorado. He is also a member of the Society of
Petroleum Engineers and the Society of Petroleum Evaluation Engineers, where he serves as chairman of the Denver Section and also served for three years on the board of directors.

As
part of his 2009 continuing education hours, Nelms attended an internally presented 16 hours of formalized training as well as the day long 2009 RSC Reserves Conference forum,
and a presentation at the Denver Section of SPEE by Dr. John Lee relating to the definitions and disclosure guidelines contained in the United States Securities and Exchange Commission Title
17, Code of Federal Regulations, Modernization of Oil and Gas Reporting, Final Rule released January 14, 2009 in the Federal Register. Nelms serves as the instructor of the PetroSkills course
entitled "Oil & Gas Reserve Evaluation" for a period of four years.

Based
on his educational background, professional training and more than 25 years of practical experience in the estimation and evaluation of petroleum reserves, Nelms has
attained the professional qualifications as a Reserves Estimator and Reserves Auditor set forth in Article III of the "Standards Pertaining to the Estimating and Auditing of Oil and Gas
Reserves Information" promulgated by the Society of Petroleum Engineers as of February 19, 2007.

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INDEX TO EXHIBITS.

Exhibit
Number



Description3.1



Certificate of Trust of ECA Marcellus Trust I (Incorporated herein by reference to Exhibit 3.1 to Registration Statement on Form S-1 (Registration No. 333-165833)).3.2



Amended and Restated Trust Agreement of ECA Marcellus Trust I, dated July 7, 2010, among Energy Corporation of America and The Bank of New York Mellon Trust Company, N.A., as Trustee, and Corporation Trust Company,
as Delaware Trustee (Incorporated herein by reference to Exhibit 3.1 to the Trust's Current Report on Form 8-K filed on July 13, 2010 (File No. 001-34800)).10.1
(1)


Perpetual Overriding Royalty Interest Conveyance (PDP), dated effective April 1, 2010, from Energy Corporation of America to The Bank of New York Mellon Trust Company, N.A., as Trustee.10.2
(1)


Perpetual Overriding Royalty Conveyance (PUD), dated effective April 1, 2010, from Energy Corporation of America to The Bank of New York Mellon Trust Company, N.A., as Trustee.10.3
(1)


Private Investor Conveyance, dated July 7, 2010, among ECA Marcellus Trust I and certain private investors named therein.10.4
(1)


Assignment of Royalty Interest, dated effective April 1, 2010, from Eastern Marketing Corporation to The Bank of New York Mellon Trust Company, N.A., as Trustee.10.5
(1)


Term Overriding Royalty Interest Conveyance (PDP), dated effective April 1, 2010 from Energy Corporation of America to Eastern Marketing Corporation.10.6
(1)


Term Overriding Royalty Conveyance (PUD), dated effective April 1, 2010, from Energy Corporation of America to Eastern Marketing Corporation.10.7
(1)


Administrative Services Agreement, dated July 7, 2010, between Energy Corporation of America and The Bank of New York Mellon Trust Company, N.A., as Trustee.10.8
(1)


Development Agreement, dated July 7, 2010, between Energy Corporation of America and The Bank of New York Mellon Trust Company, N.A., as Trustee.10.9
(1)


Swap Agreement, dated July 7, 2010, between Energy Corporation of America and ECA Marcellus Trust I.10.10
(1)


Drilling Support Lien, dated July 7, 2010, by and between Energy Corporation of America and The Bank of New York Mellon Trust Company, N.A., as Trustee.10.11
(1)


Royalty Interest Lien, dated July 7, 2010, by and between Energy Corporation of America and The Bank of New York Mellon Trust Company, N.A., as Trustee.10.12
(1)


Registration Rights Agreement, dated July 7, 2010, by and among ECA Marcellus Trust I, Energy Corporation of America, and certain affiliates of Energy Corporation of America.31
*


Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 200232
*


Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002


(1)Exhibit
previously filed with the SEC and incorporated herein by reference to the exhibit of like designation filed with the Trust's Current Report on
Form 8-K filed on July 13, 2010 (File No. 001-34800).*Filed
herewith.


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