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EXHIBIT 4.1    
  

AMENDMENT  

TO  

RIGHTS AGREEMENT DATED DECEMBER 19, 1995  

        This Amendment executed between Valmont Industries, Inc. (the "Company") and First National Bank of Omaha dated as of July 29, 2002 amends the
Rights Agreement between the Company and First National of Omaha dated December 19, 1995 (the "Rights Agreement"). 

RECITALS  

        A.    Pursuant
to the terms of the Rights Agreement, First National Bank of Omaha serves as the Rights Agent (as defined in the Rights Agreement). 

        B.    Section 21
of the Rights Agreement permits the Company to remove a Rights Agent and appoint a successor Rights Agent. 

        C.    The
Company desires to appoint the Bank of New York as successor Rights Agent pursuant to a resolution adopted by the Board of Directors of the Company on July 22,
2002. 

        D.    Pursuant
to Section 21 of the Rights Agreement, the Company has provided notification to First National of Omaha that it intends to remove First National of Omaha
as Rights Agent and appoint the Bank of New York as successor Rights Agent. 

        NOW,
THEREFORE, the Company and First National of Omaha agree as follows: 

Effective
July 29, 2002, the term "Rights Agent" shall be amended to mean the Bank of New York and its successors and assigns or any successor entity appointed by the Company. 

The
fifth sentence of Section 21 is deleted and is replaced with the following: 

Any
successor Rights Agent, whether appointed by the Company or by such a court, shall be a corporation organized and doing business under the laws of the United States or of any state of the United
States or the District of Columbia so long as such corporation is in good standing, and is authorized under such laws to exercise corporate trust powers and is subject to supervision or examination by
federal or state authority and which has at the time of its appointment as Rights Agent a combined capital and surplus of at least $50 million. 

        Section 26
is amended by deleting the address for the Rights Agent provided for and inserting instead: 

The
Bank of New York

One Wall Street

New York, NY 10286 

        This
amendment shall be governed by and construed in accordance with the laws of the State of Delaware. 

        This
amendment may be executed in counterparts and each such counterpart shall be deemed to be an original. 

        The
Rights Agreement as amended by this Amendment shall be read together to constitute one agreement. 

	VALMONT INDUSTRIES, INC.	 	FIRST NATIONAL BANK OF OMAHA
	

/s/  TERRY J. MCCLAIN      
 By:    Terry J. McClain

Title: Senior Vice President and

          Chief Financial Officer	
 	

/s/  JOHN E. LENIHAN      
 By: John E. Lenihan

Title: Sr. Trust Officer

        The
Bank of New York herewith accepts appointment as successor Rights Agent effective July 29, 2002 as described in the attached Amendment to Rights Agreement between Valmont
Industries, Inc. and First National Bank of Omaha dated December 19, 1995. 

	 	 	THE BANK OF NEW YORK
	

 	
 	

/s/  WILLIAM F. POWERS      
 By: William F. Powers

Title: Assistant Vice President

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Exhibit 10.6    
  

 
 

GAS SALES AGREEMENT
  
  BETWEEN
  
  TEJAS GAS MARKETING, LLC
  
  "BUYER"
  
  AND
  
  CORPUS CHRISTI GAS MARKETING, L.P.
  
  AND
  
  CORPUS CHRISTI GAS PROCESSING, L.P.

  "SELLER"    
  

 
 

TABLE OF CONTENTS    
  

	ARTICLE
 
	CONTENT
 
	 	PAGE
 

	I	DEFINITIONS	 	1
	

II	

QUANTITY	
 	

2
	

III	

POINT(S) OF DELIVERY	
 	

3
	

IV	

DELIVERY PRESSURE	
 	

3
	

V	

MEASURING EQUIPMENT AND TESTING	
 	

4
	

VI	

MEASUREMENT SPECIFICATIONS	
 	

5
	

VII	

QUALITY	
 	

7
	

VIII	

PRICE, BILLING AND PAYMENT	
 	

8
	

IX	

TERM	
 	

8
	

X	

WARRANTIES, INDEMNIFICATION	
 	

9
	

XI	

FORCE MAJEURE	
 	

9
	

XII	

TAXES	
 	

9
	

XIII	

GOVERNMENTAL REGULATIONS	
 	

10
	

XIV	

CERTAIN ADDITIONAL OBLIGATIONS OF EACH PARTY	
 	

10
	

XV	

ASSIGNMENT	
 	

11
	

XVI	

MISCELLANEOUS	
 	

11

 
 
 

GAS SALES CONTRACT    
  

        THIS CONTRACT is made and entered into by and between TEJAS GAS MARKETING,
LLC, a Delaware limited liability company, hereinafter referred to as "Buyer", and CORPUS CHRISTI GAS MARKETING, L.P., a Texas
limited partnership, and CORPUS CHRISTI GAS PROCESSING, L.P., a Texas limited partnership, hereinafter collectively referred to as "Seller." 

        WHEREAS, Seller has a supply of natural gas which is available for sale to Buyer; and 

        WHEREAS, Buyer desires to purchase from Seller, and Seller desires to sell to Buyer, natural gas upon the terms and conditions hereinafter
set forth. 

        NOW, THEREFORE, in consideration of the sum of Ten Dollars ($10.00) paid by Seller to Buyer, the receipt and sufficiency of which are
hereby acknowledged, and of the mutual covenants and contracts herein set forth, the parties have agreed as follows: 

 
 

ARTICLE I
  
    DEFINITIONS    
  

        Except as otherwise specified in context, the following words and terms as used herein shall have the meanings indicated. 

        1.1  The
term "Agua Dulce Index" as used herein means the "Midpoint" price for the "South-Corpus Christi, Agua Dulce hub" as reported in the "DAILY PRICE SURVEY" of  GAS DAILY (as published by Pasha Publications,
 Inc.). The Agua Dulce Index applicable to deliveries on any business day hereunder shall be the
Agua Dulce Index reported for the "Flow Date" for such business day. For example, if Thursday the 21st was a business day and Excess Gas, as described below, were delivered and received on the 21st,
the Agua Dulce Index applicable to such deliveries would be the price reported for the Flow Date of the 21st as listed in the GAS DAILY published on the
21st. The Agua Dulce Index applicable to deliveries on any weekend day or holiday hereunder shall be the Agua Dulce Index reported for the "Flow Date" for the immediately preceding business day. For
example, if Excess Gas were delivered and received on Saturday the 23rd, the Agua Dulce Index applicable to such deliveries would be the price reported for the Flow Date of Friday the 22nd as listed
in the GAS DAILY published on the 22nd. 

        1.2  The
term "Btu" as used herein means British Thermal Unit: the amount of heat required to raise the temperature of one (1) pound of pure water, one
(1) degree Fahrenheit from fifty-eight and five-tenths (58.5) degrees Fahrenheit to fifty-nine and five-tenths (59.5) degrees Fahrenheit. 

        1.3  The
term "cubic foot" as used herein means the volume of gas contained in one (1) cubic foot of space at a standard pressure of 14.65 pounds per square inch
absolute and a standard temperature of sixty (60) degrees Fahrenheit. 

        1.4  The
word "day" as used herein means a period of twenty-four (24) consecutive hours beginning at 9:00 A.M. Central Time on any calendar day and
ending at 9:00 A.M. Central Time on the following calendar day. 

        1.5  The
term "Facility" means Seller's Gregory processing plant located in San Patricio County, Texas. 

        1.6  The
term "gas" as used herein means natural gas, including gas well gas, casinghead gas or the residue gas resulting from processing either casinghead gas or gas well
gas. 

        1.7  The
term "gross heating value" as used herein means the number of Btu's liberated by the complete combustion, at constant pressure, of one (1) cubic foot of gas
with air, the temperature of gas, air, and products of combustion being sixty (60) degrees Fahrenheit and all of the water formed by 

1

 

the combustion reaction being condensed to the liquid state. The gross heating value of the gas shall be corrected for the water vapor content of the gas being delivered, except that as long as the
water vapor content is seven (7) pounds or less per one million (1,000,000) cubic feet, the gas shall be assumed to be dry. The terms "heating value" or "Btu content" as used herein shall be
deemed to mean "gross heating value" as defined above. 

        1.8  The
term "Index Price" as used herein, to be used in pricing for a month, means the price (per MMBtu) reported as "DELIVERED SPOT-GAS PRICES, Houston Ship
Channel/Beaumont, Texas Index (large packages only)" from the first publication each month of McGraw-Hill, Inc.'s Inside FERC's Gas Market
Report. If Inside FERC's Gas Market Report ceases to publish the Inside FERC "Index Price" substantially in its current form as
of the effective date hereof, Buyer and Seller shall, during the term of this Contract, use good faith efforts to mutually agree upon a replacement "Index Price" hereunder which best approximates the
Houston Ship Channel/Beaumont, Texas, Delivered Spot-Gas Index Price in its current form as of the effective date hereof. 

        1.9  The
term "Mcf" as used herein means one thousand cubic feet of gas. 

        1.10 The
term "MMBtu" as used herein means one million British Thermal Units. 

        1.11 The
word "month" as used herein means the period commencing at 9:00 A.M. on the first day of the calendar month and ending at 9:00 A.M. on the first day
of the next succeeding calendar month. 

        1.12 The
term "psia" as used herein means pounds per square inch absolute. 

        1.13 The
term "psig" as used herein means pounds per square inch gauge. 

        1.14 The
term "residue gas" means all of Seller's and Seller's affiliates' gas available for delivery at the tailgate of Seller's Gregory Processing Plant located in San
Patricio County, Texas, at meter number 31-5200-00 and at HPL meter station 3358. 

        1.15 The
word "year" as used herein means a period of twelve (12) consecutive months. 

 
 

ARTICLE II
  
    QUANTITY    
  

        2.1  Subject
to the other terms and provisions hereof, Seller shall sell and deliver, or cause to be delivered to Buyer, at the Point(s) of Delivery hereunder, and Buyer
shall buy one hundred percent (100%) of all of Seller's and Seller's affiliates' residue gas available for delivery, each day. On or before the sixth (6th) business day prior to the first day of each
month, Seller will nominate to Buyer the quantity of residue gas available to be tendered for delivery to Buyer at the Point of Delivery each day during such month (the "Nominated Quantity"). The
Nominated Quantity for any month, plus or minus a ten percent (10%) tolerance, is herein called the "Minimum Daily Quantity." In the event Buyer purchases more than the Minimum Daily Quantity on any
day, the difference between the quantity of residue gas actually received by Buyer on such day and the Minimum Daily Quantity shall be deemed "Excess Gas." If, and to the extent that, Seller sells and
delivers to Buyer at the Point(s) of Delivery during any month residue gas produced from wells that were newly connected and not available to be included in the nominations for such month as set forth
above, then for the remainder of such month the residue gas delivered from such newly connected wells shall be deemed "Excess Gas" for pricing purposes under Section 8.1 hereof. Seller shall
endeavor to notify Buyer prior to any significant changes in Seller's deliveries of residue gas hereunder. 

        2.2  Seller
shall be responsible for all regulatory filings, and all coordination and nomination requirements of upstream pipelines and third party suppliers utilized by
Seller hereunder. Buyer shall be responsible for all regulatory filings and all coordination and nomination requirements of downstream pipelines and third party purchasers and transporters utilized by
Buyer hereunder, and 

2

 

responsible for maintaining third-party, firm transportation agreements as necessary for Buyer to meet its obligations hereunder. 

 
 

ARTICLE III
  
    POINT(S) OF DELIVERY    
  

        3.1  The
Point(s) of Delivery for all gas to be purchased hereunder shall be at Buyer's or Buyer's designee's meter at the following locations: 

	LOCATION
 
	 	MAXIMUM INSTANTANEOUS

RATES

OF DELIVERY
	 	MAXIMUM OPERATING

PRESSURE

	Primary:

Gregory Processing Plant tailgate

Meter #31-5200-00

San Patricio County, Texas	 	100,000 MMBtu/day	 	650 psig*

*See below
	Secondary:

Houston Pipeline

Meter #3358

San Patricio County, Texas	 	100,000 MMBtu/day	 	850 psig

        Except
as provided below, all residue gas will be accepted by Buyer at the "Primary" Point of Delivery, and Buyer will cause the pressures at the Primary Point of Delivery not to exceed
650 psig. However. if, to the extent that, and only for so long as (i) the residue gas available under this Agreement exceeds Buyer's and all of its affiliates' gas requirements to supply their
Ingleside Markets, or (ii) Buyer is unable to accept all of the residue gas at the Primary Point of Delivery due to an event of force majeure as provided in Section 11.1, then
(iii) the pressure at the Primary Point of Delivery may increase to not more 850 psig and Buyer may also accept residue gas at the Point of Delivery designated "Secondary." Buyer will notify
Seller of each event that causes Buyer to increase pressures at the Primary Point of Delivery or deliveries at the Secondary Point of Delivery, and the reasons therefor, as soon as reasonably
practicable, and will again notify Seller upon the correction of the event. 

        3.2  Buyer
or Buyer's designee owns and shall maintain and operate metering and measurement equipment at the Point(s) of Delivery. 

        3.3  Title
to all gas sold and delivered hereunder shall pass from Seller to Buyer at the Point(s) of Delivery. As between parties hereto, Seller shall be responsible for any
damage or injury caused by the
gas until the same shall have been delivered to Buyer at the Point(s) of Delivery. Buyer shall be deemed to be in exclusive control and possession thereof after receipt by Buyer at the Point(s) of
Delivery and shall be responsible for any damage or injury caused thereby. 

 
 

ARTICLE IV
  
    DELIVERY PRESSURE    
  

        4.1  The
gas delivered hereunder by Seller to Buyer shall be delivered at the Point(s) of Delivery at a pressure sufficient to overcome the operating pressures at such
Point(s) of Delivery. Buyer shall cause such operating pressures not to exceed the Maximum Operating Pressure listed in Paragraph 3.1. 

3

 
 
 

ARTICLE V
  
    MEASURING EQUIPMENT AND TESTING    
  

        5.1  Buyer,
or its designee, shall maintain and operate at its own expense the measuring station(s) at the Point(s) of Delivery through which the quantity of gas purchased
and sold hereunder shall be measured. Seller may install, maintain and operate, at its own expense, such check measuring equipment as desired; provided, that such equipment shall be installed so as
not to interfere with the operation of Buyer's or its designee's measuring equipment. 

        5.2  The
measuring equipment shall be constructed, installed and operated in accordance with the following depending on the type of meters used: 

        a.    Orifice
Meters—in accordance with ANSI/API 2530 (American Gas Association Report No. 3), Orifice Metering of Natural Gas and
Other Hydrocarbon Fluids, Second Edition, dated September 1985, and any subsequent amendments. revisions or modifcations thereof and shall include the use of flange
connections. Should gas pulsation problems occur upstream of the Point(s) of Delivery, Seller or its designee, or down stream of the Point(s) of Delivery, Buyer or its designee, shall take whatever
steps necessary to mitigate such pulsation. 

        b.    Positive
Meters—in accordance with the American Gas Association Measurement Committee Report No. 6 (American Gas Association Report No. 6) dated
January 1971, and any subsequent amendments, revisions or modifications thereof. 

        c.    Turbine
Meters—in accordance with the American Gas Association Measurement Committee Report No. 7 (American Gas Association Report No. 7), First
Revision, dated November 1984, and any subsequent amendments, revisions or modifications thereof. 

        d.    Electronic
Transducers and Flow Computers (solar and otherwise)—in accordance with the applicable American Gas Association standards, including but not
limited to American Gas Association Measurement Committee Report Nos. 3, 5, 6 and 7 and any subsequent amendments, revisions, or modifications thereof. 

Notwithstanding
anything contained in this Section to the contrary, Buyer or its designee shall not be required to replace or make any alterations to its measuring equipment as a result of any
subsequent amendments, revisions or modifications of the American Gas Association Reports cited in Subparagraphs (a) through (d) of this Section, unless the Parties mutually agree to
such replacement or alteration. 

        5.3  Buyer
shall give reasonable notice to Seller in order that Seller may have a representative present to observe any cleaning, changing, repairing, inspecting, testing,
calibrating or adjusting of the measuring equipment at the Point(s) of Delivery. The official charts (recordings) from the measuring equipment shall remain the property of Buyer or its designee. Upon
request, Buyer or its designee will submit its records and charts, together with calculations therefrom, to Seller for inspection and verification, subject to return to Buyer or its designee within
ten (10) days after receipt thereof. 

        5.4  The
accuracy of all measuring equipment shall be verified by Buyer or its designee at reasonable intervals and, if requested, in the presence of a representative of
Seller. Buyer or its designee shall verify the accuracy of such equipment once every three (3) months unless Seller requests a special test as described below; provided, however, that when
daily deliveries of gas at any Point of Delivery average ten thousand (10,000) Mcf per day or greater during any month, the accuracy of the measuring equipment shall be verified once every month. If,
upon any test, the measuring equipment is found to be inaccurate by two percent (2%) or less, previous readings of such equipment will be considered correct in computing the deliveries of gas
hereunder, but such equipment shall immediately be adjusted to record accurately. If, upon any test, the measuring equipment is found to be inaccurate by more that two percent (2%) of the average flow
rate since the last test, then any previous recordings 

4

 

of such equipment shall be corrected to zero (0) error for any period which is known definitely or agreed upon, utilizing the procedure set forth in Paragraph (e) of this Section. If
such period is not known or agreed upon, such correction shall be made for a period covering one-half (1/2) of the time
elapsed since the date of the latest test, but not to exceed sixteen (16) days when the equipment is tested every month and not to exceed forty-five (45) days when the
equipment is tested every three (3) months. In the event Seller desires a special test of any measuring equipment, at least seventy-two (72) hours advance notice shall be
given to Buyer by Seller, and both Parties shall cooperate to secure a prompt test of the accuracy of such equipment. If the measuring equipment so tested is found to be inaccurate by two percent (2%)
or less, Buyer shall have the right to bill Seller for the costs incurred due to such special test, including any labor and transportation costs, and Seller shall pay such costs promptly upon invoice
therefore. 

        5.5  If,
for any reason, any measurement equipment is out of adjustment, out of service, or out of repair and the total calculated hourly flow rate through each meter run is
found to be in error by an amount of the magnitude described in Section 5.4, the total quantity of Gas delivered shall be redetermined in accordance with the first of the following methods
which is feasible: 

        a.    By
using the registration of any check meter(s), (if installed and accurately registering subject to testing as described in Section 5.4); or 

        b.    Where
parallel multiple meter runs exist, by calculation using the registration of such parallel meter runs; provided that they are measuring gas from upstream headers in
common with the faulty metering equipment, are not controlled by separate regulators, and are accurately registering; or 

        c.    By
correcting the error by rereading of the official charts, or by straightforward application of a correcting factor to the quantities recorded for the period (if the
net percentage of error is ascertainable by calibration, tests or mathematical calculation); or 

        d.    By
estimating the quantity, based. upon deliveries made during periods of similar conditions when the meter was registering accurately. 

        5.6  Buyer
or its designee shall retain and preserve for a period of at least four (4) years all test data, charts and other similar records. 

 
 

ARTICLE VI
  
    MEASUREMENT SPECIFICATIONS    
  

        The measurements of the quantity and quality of all Gas delivered at the Point(s) of Delivery shall be conducted in accordance with the following: 

        6.1  The
unit of volume for measurement shall be one (1) cubic foot. Such measured volumes, converted to Mcf, shall be multiplied by their gross heating value per
cubic foot and divided by 1,000 to determine MMBtu delivered hereunder. 

        6.2  Subject
to Section 5.2 hereof, computations for gas measurement shall be made in accordance with the following depending on the type of meters used: 

        a.    Orifice
meters—ANSI/API 2530 (American Gas Association Report No. 3), Orifice Metering of Natural Gas and Other Hydrocarbon
Fluids, Second Edition, dated September 1985, and any subsequent amendments, revisions, or modifications thereof. 

        b.    Positive
meters—American Gas Association Measurement Committee Report No. 6 (American Gas Association Report No. 6), dated January 1971,
and any subsequent amendments, revisions or modifications thereof. 

5

 

        c.    Turbine
meters—American Gas Association Measurement Committee Report No. 7 (American Gas Association Report No. 7); First Revision, dated
November 1984, and any subsequent amendments, revisions or modifications thereof. 

        d.    Electronic
transducers and flow computers—American Gas Association Report Nos. 3, 5, 6 & 7 and any subsequent amendments, revisions or modifications
thereof. 

        6.3  The
temperature of the gas shall be determined by a recording thermometer installed so that it may record the temperature of the gas flowing through the meters, or such
other means of recording temperature as may be mutually agreed upon by the Parties. The average of the record to the nearest one degree Fahrenheit (1°F), obtained while gas is being
delivered, shall be the applicable flowing gas temperature for the period under consideration. 

        6.4  The
specific gravity of the gas shall be determined by a recording gravitometer or chromatographic device installed and located at a suitable point to record
representative specific gravity of the gas being
metered or, at Buyer's or its designee's option, by spot samples or continuous sampling using standard type gravity methods. If a recording gravitometer or chromatographic device is used, the gravity
to the nearest one-thousandth (0.001) obtained while gas is being delivered shall be the specific gravity of the gas used for the recording period. If the spot sample or continuous
sampling method is used, the gravity to the nearest one-thousandth (0.001) shall be determined once a month from a gas analysis. The result should be applied during such month for the
determination of gas volumes delivered. 

        6.5  Adjustments
to measured gas volumes for the effects of supercompressibility shall be made in accordance with accepted American Gas Association standards. Buyer or its
designee shall obtain appropriate carbon dioxide and nitrogen mole fraction values for the gas delivered as may be required to compute such adjustments in accordance with standard testing procedures.
At Buyer's or its designee's option, equations for the calculation of supercompressibility may be taken from either the American Gas Association Manual for the Determination of Supercompressibility
Factors for Natural Gas, dated December, 1962 (also known as the "NX-19 Manual") or American Gas Association Report No. 8, dated December 1985, Compressibility and
Supercompressibility for Natural Gas and Other Hydrocarbon Gases, latest revision. 

        6.6  For
purposes of measurement and meter calibration, the atmospheric pressure for each of the Point(s) of Delivery shall be assumed to be the pressure value determined by
Buyer, or its designee, for the county elevation at which such point is located pursuant to generally accepted industry practices irrespective of the actual atmospheric pressure at such Point from
time to time. 

        6.7  The
gross heating value of the gas delivered at the Point(s) of Delivery shall be determined at least once each quarter by means of some approved method of general use
in the gas industry. Provided, however, that when daily deliveries of gas at any Point of Delivery average ten thousand (10,000) Mcf or greater during any month, the gross heating value of the gas
delivered at any Point of Delivery shall be taken monthly at a suitable point on the Facility to be representative of the gas being metered. 

        6.8  Other
tests to determine water content, sulfur, and other impurities in the gas shall be conducted whenever requested by either Party and shall be conducted in
accordance with standard industry testing procedures. The Party requested to perform such test(s), shall bear the cost of such test(s) only in the event the gas tested is determined not to be within
the quality specification set forth below. If the gas is within such quality specification, the requesting Party shall bear the cost of such test(s). 

        6.9  If
at any time during the term hereof a new method or technique is developed with respect to gas measurement or the determination of the factors used in such gas
measurement, then such new 

6

 

method or technique may be substituted for the method set forth in this Article when such methods or techniques are in accordance with the currently accepted standards of the American Gas
Association. 

 
 

ARTICLE
  
    VII QUALITY    
  

        7.1  All
natural gas delivered at the Point(s) of Delivery (subject to the receiving pipeline quality specifications) hereunder shall conform to the following specifications: 

        a.    Water Vapor: The gas shall not have a water vapor content in excess of seven (7) pounds of water vapor per one
million (1,000,000) cubic feet of gas. 

        b.    Hydrogen Sulfide: Subject to the provisions of Subparagraph (h) below, the gas shall not contain more than
one-quarter (1/4) grain of hydrogen sulfide per one hundred (100) cubic feet of gas at the Point(s) of Delivery, as determined by quantitative tests. 

        c.    Total Sulfur: Subject to the provisions of Subparagraph (h) below, the gas shall not contain more than five
(5) grains of total sulfur per one hundred (100) cubic feet of gas at the Point(s) of Delivery, as determined by quantitative tests. 

        d.    Temperature: The gas shall not have a temperature less than forty degrees Fahrenheit (40°F) or more than one
hundred twenty degrees Fahrenheit (120°F). 

        e.    Carbon Dioxide: Subject to the provisions of Subparagraph (h) below, the gas shall not contain more than two
percent (2%) by volume of carbon dioxide at the Point(s) of Delivery. 

        f.      Oxygen: Subject to the provisions of Subparagraph (h) below, the gas shall contain no more than one percent (1%) by
volume of oxygen at the Point(s) of Delivery. 

        g.    Nitrogen: Subject to the provisions of Subparagraph (h) below, the gas shall not contain more than two percent (2%)
by volume of nitrogen at the Point(s) of Delivery. 

        h.    Nonhydrocarbons: Notwithstanding the foregoing provisions of this Section 7.1 to the contrary, the gas shall not
contain more than three percent (3%) by volume of total nonhydrocarbons at the Point(s) of
Delivery. Nonhydrocarbons shall include, but not be limited to, water, hydrogen sulfide, sulfur, carbon dioxide, oxygen and nitrogen. 

        i.      Objectionable Liquids and Solids and Dilution: The gas shall be free of objectionable liquids and solids, shall not
contain any hydrocarbons which might condense to free liquids in the pipeline under normal pipeline conditions and shall be commercially free from dust, gums, gum-forming constituents, and
other liquids or solid matter which might become separated from the gas in the course of transportation through pipelines. 

        j.      Gross Heating Value: The gas shall not have a Gross Heating Value less than nine hundred fifty (950) Btu per Cubic
Foot of Gas or more than one thousand, one hundred fifty (1,150) Btu per cubic foot of gas. 

        7.2  In
the event the gas delivered at any of the Point(s) of Delivery hereunder should fail to meet any of the quality specifications stated above, then Buyer shall notify
Seller and Seller shall make a diligent effort to correct the situation. Buyer shall have the right to refuse to accept such gas for so long as the Seller is unable to deliver gas conforming to such
specifications. 

        7.3  In
the event Seller is unable, either physically or economically, to conform the Gas to such specifications within thirty (30) days after Buyer's notification to
Seller of the situation, then this Agreement shall terminate effective at the end of said thirty (30) day period, whereupon neither Party shall have any future rights, obligations or
liabilities hereunder. 

7

 

 
 

ARTICLE VIII
  
    PRICE, BILLING AND PAYMENT    
  

        8.1  The
price for each MMBtu of gas sold and delivered hereunder shall be as follows: 

        a.    The
price for each MMBtu of the Minimum Daily Quantity sold and delivered hereunder during any month shall be the Index Price minus *. 

        b.    The
price for each MMBtu of Excess Gas sold and delivered hereunder during each day shall be the * Index Price applicable to such day. 

        8.2  On
or before the sixteenth (16th) day of each calendar month, Seller will render to Buyer a statement setting forth the total quantity of gas, in terms of Mcf and MMBtu,
delivered hereunder at the Point(s) of Delivery during the immediately preceding calendar month and the amount payable therefor. Buyer agrees to pay Seller by wire transfer in immediately available
funds pursuant to written wire transfer instructions provided by Seller to Buyer from time to time the full undisputed amount payable according to such statement, consistent with the terms hereof, on
or before the later of the twenty-sixth (26th) day of each month or ten (10) days following the receipt thereof by Buyer. Should Buyer fail to pay any undisputed amount when 8.3 the same
becomes due, interest shall accrue thereon at a rate equal to the prime rate from time to time in effect and charged by the Citibank, N. A., New York, New York (but in no event greater than the
maximum rate of interest permitted by law), with adjustments in such rate to be made on the same day as any change in such prime rate, for any period during which the same shall be overdue, such
interest to be paid when the amount past due is paid. In the event of any dispute, Buyer and Seller shall meet and promptly resolve such dispute. 

        8.4  Each
party hereto or its representative shall have the right at all reasonable times to examine the books and records of the other party to the extent necessary to
verify the accuracy of any statement, charge, computation or demand made under or pursuant to this contract. 

        8.5  Any
notice, request, demand, statement, payment or other correspondence shall be mailed to the post office address of each of the parties hereto, hereinafter stated, or
to such other address as such party may hereafter designate to the other in writing: 

	Seller:	Corpus Christi Gas Marketing, L.P.

2501 Cedar Springs, Suite 600

Dallas, Texas 75201

Attn: Contract Administration
	

Buyer:	

Tejas Gas Marketing, LLC

909 Fannin, Suite 700

Houston, Texas 77010

Attn: Contract Administrator

 
 

ARTICLE IX
  
    TERM    
  

        9.1  Subject
to the other terms and conditions of this Contract, this Contract shall be effective and operative on March 1, 2001, unless mutually agreed otherwise, and
shall continue in full force and effect through March l, 2006, and month to month thereafter until terminated by either party upon at least thirty (30) days prior written notice. 

	*
	Denotes
Confidential Portion Omitted and Filed Separately with the Commission 

8

 
 
 

ARTICLE X
  
    WARRANTIES, INDEMNIFICATION    
  

        10.1 Seller
represents and warrants to Buyer that it has full and unqualified title and authority to sell all gas delivered hereunder, and that such is free from all liens
and adverse claims. Seller further represents and warrants to Buyer that all gas delivered hereunder shall conform to the quality specifications set forth in Article VII hereof. Seller will
indemnify Buyer against all suits, debts, damages, costs and expenses arising from any losses or damages sustained by Buyer or its gas purchasers in the Ingleside markets to whom the gas purchased by
Buyer hereunder is resold, resulting from any failure of such gas to conform to the quality specifications prescribed herein. The agreement of Seller in the preceding sentence of this
Section 10.1 shall survive termination of this Agreement. 

 
 

ARTICLE XI
  
    FORCE MAJEURE    
  

        11.1 The
term "force majeure" as employed herein shall mean acts and events not within the control of the party claiming suspension and shall include acts of God, strikes,
lockouts or other industrial disturbances, inability to obtain pipe or other material or equipment or labor, wars, riots, insurrections, epidemics, landslides, lightning, earthquakes, fires, storms,
floods, washouts, interruptions by government or court orders, present or future orders of any regulatory body having proper jurisdiction, civil disturbances, explosions, breakage, or accident to
machinery or lines of pipe, freezing of wells or pipelines, and any other cause whether of the kind herein enumerated or otherwise. not within the control of the party claiming suspension and which,
by the exercise of due diligence, such party is unable to overcome. 

        Such
causes or contingencies affecting the performance by either party, however, shall not relieve it of liability in the event of its concurring negligence or in the event of its
failure to use reasonable diligence to remedy the situation and remove the cause in an adequate manner and with all reasonable dispatch, nor shall such causes or contingencies relieve either party of
liability otherwise unless such party shall give notice and full particulars of the same in writing or by telegraph to the other party as soon as possible after the occurrence relied on. 

        11.2 In
the event of either Buyer or Seller being, rendered unable by force majeure to itself or a necessary third party to wholly or in part carry out its obligations under
the provisions of this Contract, it is agreed that the obligations of the party affected by such force majeure, other than the obligation to make payments thereunder, shall be suspended during the
continuance of any inability so caused but for no longer period, and such cause shall, so far as possible, be remedied with all reasonable dispatch. Nothing contained herein, however, shall be
construed to require either party to settle a strike against its will. 

 
 

ARTICLE XII
  
    TAXES    
  

        12.1 Seller
shall be responsible for all taxes levied on gas prior to its delivery to Buyer hereunder (including any taxes based on Seller's gross receipts or income derived
from the sale of gas hereunder) at the rate or rates existing as of the date of this Contract. Subject to paragraph 11.2 of this Article, Buyer will reimburse Seller to the full extent of any
new, or increased rate, of such taxes imposed after the date of this Contract. 

        12.2 Buyer
shall have the option to either pay such additional taxes or charges (as enumerated in 11.1 above) or to give Seller thirty (30) days' written notice that
it will not pay such taxes or charges. Within thirty (30) days of Seller's receipt of Buyer's notice, Seller shall, at its sole discretion, either 

9

 

(i) release Buyer of its obligation of reimbursing Seller for such additional taxes or charges throughout the term of this Contract or (ii) terminate the Contract; provided, however, if
Seller elects to so terminate the Contract and if any such additional taxes or charges have accrued prior to the effective date of termination, then Buyer will reimburse Seller for the amount of such
taxes or charges which accrued subsequent to the date Buyer first received notice of the new or increased taxes. 

 
 

ARTICLE XIII
  
    GOVERNMENTAL REGULATIONS    
  

        13.1 This
Contract is subject to all valid existing and future Rules, Regulations, Orders, Laws or Proclamations of governmental authorities (both federal and state,
including both civil and military) having jurisdiction over the parties hereto or the subject matter hereof. 

        13.2 If
at any time during the term hereof, any governmental authority having jurisdiction over the parties hereto or the subject matter hereof shall take action as to
Seller or Buyer whereby the purchase, sale, transportation, other handling (including without limitation compression or treating), delivery and receipt of Gas as contemplated hereunder shall be
proscribed or subjected to terms, conditions, regulations, restraints, or price or rate controls, including but not limited to Gas inventory, reservation or similar charges, ceiling or limits that, in
the sole judgment of Seller or Buyer, are unduly burdensome to that Party, such Party may thereafter, upon ninety (90) days' written notice, terminate this Contract, without further liability
hereunder, except as to payment due at the time of such termination. 

 
 

ARTICLE XIV
  
    CERTAIN ADDITIONAL OBLIGATIONS OF EACH PARTY    
  

        14.1 Except
as further provided in this Section 14.1, throughout the term of this Agreement, Seller shall be required to insure that all gas delivered at the tailgate
of the Facility, including not only Seller's residue gas, as herein defined, but also all other gas delivered at the tailgate of Facility on behalf of third parties (subject to the terms of contracts
existing with such third parties as of April 30, 2001) shall
be tendered for delivery to Buyer, not to exceed 100 thousand MMBtu per day. Such 100 thousand MMBtu per day shall be satisfied first, to the extent possible, by residue gas owned by
Seller that is sold to Buyer pursuant to this Contract, and then, by gas delivered to Buyer at the tailgate of the Facility on behalf of third parties. Except as provided below, Seller agrees that as
a condition to processing third-party gas through the Facility (other than pursuant to contracts existing with third parties as of April 30, 2001), any owner of such third-party gas will first
be required to demonstrate to Seller that such owner has entered into an agreement with Buyer or Buyer's affiliate for Buyer's or it's affiliate's purchase and/or transport of any such third-party gas
that Seller is to deliver at the tailgate of the Facility. Notwithstanding the above, (a) during any time when the pressure at the Primary Point of Delivery exceeds 650 psig, Seller will not be
obligated to satisfy the conditions and obligations stated in this Section prior to agreeing to process through the Facility third-party gas not then under contract to Buyer or Seller; and
(b) if the pressure at the Primary Point of Delivery exceeds 650 psig for ninety (90) consecutive days or more, Seller's obligations under this Section 14.1 with respect to third
party gas will terminate for all purposes. Buyer shall comply with applicable laws and regulations, including the avoidance of any discrimination prohibited by law, with respect to any party
requesting transportation of gas processed in the Facility. If Seller transfers any of its ownership interest in the Facility and/or this Contract during the term of this Agreement, then as a
condition to the effectiveness of any such transfer the assignee shall be required to expressly knowledge its awareness of, and to assume, the provisions of this Section 14.1. 

        14.2 If,
and solely to the extent that, any contract in existence on April 30, 2001, between any third party and Seller to provide transportation of gas owned by such
third party from the tailgate of the 

10

 

Facility to parties other than Buyer, then Buyer shall, or shall cause it's affiliates to, provide such transportation in accordance with the terms of such existing contract, provided that:
(a) the consideration, if any, payable by such third party under the terms of such existing contract specifically for those transportation services downstream of the Facility shall be payable
one-half to Seller and one-half to Buyer or its affiliate that provides such transportation services, and (b) any direct, actual costs incurred by Buyer or its affiliate
to provide such transportation services, to the extent reasonably substantiated to Seller, shall be borne one-half by Seller and one-half by Buyer. 

 
 

ARTICLE XV
  
    ASSIGNMENT    
  

        15.1 The
terms and provisions of this Contract shall be binding upon and inure to the benefit of the successors, assigns of legal representatives of the parties hereto
and/or to any purchaser of the Facility, provided that neither party shall assign this Contract or any portion thereof, or any of its rights and obligations hereunder, to any third party,
(other than affiliates of Seller or a purchaser of the Facility) without the prior written consent of the other, which consent will not be unreasonably withheld, and provided further, that either
party shall have the right to pledge or mortgage its respective rights hereunder for the security of its indebtedness without the prior written consent of the other. 

 
 

ARTICLE XVI
  
    MISCELLANEOUS    
  

        16.1 This
Contract constitutes the entire contract between the parties and no other matter, oral or written, prior to the date hereof, shall vary, alter or aid the
interpretation of the provisions hereof. The headings and captions in this Contract are for convenience and shall not constitute a part of the contract or be considered interpretive thereof. 

        16.2 Buyer
and Seller acknowledge and agree that no third party, including Buyer's Customer, is an intended beneficiary of this contract. Accordingly, no third party, other
than a permitted successor or assign of Seller or Buyer under the provisions of Section 15.1 hereof, shall ever be entitled to claim any of the rights or benefits, or to enforce any of the
obligations, arising under the terms of this Contract. 

        16.3 This
Contract was prepared jointly by the parties hereto and not by either party to the exclusion of the other. 

        16.4 This
Contract shall be governed by the laws of the State of Texas. 

        16.5 The
failure of either party hereto to exercise any right granted hereunder shall not impair nor be deemed as a waiver of such party's privilege of exercising such right
at any subsequent time or times. 

        16.6 It
is further agreed that no modification or change of the terms of this Contract shall be enforceable unless and until such modification or change is reduced to
writing and executed by both parties. 

11

 

        IN WITNESS WHEREOF, the parties hereto have caused this instrument to be executed in multiple originals of equal dignity by their
respective representatives thereunto duly authorized. 

        EXECUTED
effective as of the lst day of March, 2001. 

	 	 	TEJAS GAS MARKETING, LLC
	

 	
 	

By:	
 	

/s/  ROBERT CLARK      

	 	 	Name:	 	Robert Clark

	 	 	Title:	 	Senior Vice President

	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	CORPUS CHRISTI GAS MARKETING, L.P.
	

 	
 	

By:	
 	

/s/  JAMES R. WALES      

	 	 	Name:	 	James R. Wales

	 	 	Title:	 	Executive Vice President

12

 
 

AMENDMENT TO GAS SALES AGREEMENT    
  

        This Amendment is made and entered into this 1st day of October, 2001, by and between TEJAS GAS MARKETING, LLC,
hereinafter referred to as "Buyer," and CROSSTEX CCNG MARKETING, L.P., a successor in interest to CORPUS CHRISTI GAS MARKETING,
L.P. AND CROSSTEX CCNG PROCESSING LTD., a successor in interest to CORPUS CHRISTI GAS PROCESSING, L.P. hereinafter
collectively referred to as "Seller". 

WITNESSETH  

        WHEREAS, Seller and Buyer previously entered into that certain Gas Sales Agreement effective March 1, 2001 (the "Agreement"). 

        WHEREAS,
Seller and Buyer have agreed to amend the Agreement as described herein effective as of October 1, 2001. 

        NOW
THEREFORE, in consideration of the mutual covenants and conditions herein contained the parties hereto covenant and agree as follows: 

 
 

I.    
  

        The Agreement is hereby amended by deleting Paragraph 2.1 of Article II, QUANTITY in its entirety and substituting a new Paragraph 2.1 as
follows: 

        "2.1
Subject to the other terms and provisions hereof, Seller shall sell and deliver, or cause to be delivered to Buyer, at the Point(s) of Delivery hereunder, and Buyer shall buy one
hundred percent (100%) of all of Seller's and Seller's affiliates' residue gas available for delivery each day. On or before the sixth (6th) business day prior to the first day of each month (the
"Nomination Deadline"), Seller will nominate to Buyer the quantity of residue gas available to be tendered for delivery to Buyer at the Point of Delivery each day during such month (the "Nominated
Quantity"). In the event that Seller fails to provide Buyer with the Nominated Quantity for the succeeding month by the Nomination Deadline, the Nominated Quantity for such given month will be
determined by taking the average of the actual quantity of residue gas delivered to Buyer by Seller during the ten (10) days prior to the Nomination Deadline. The Nominated Quantity for any
month, plus or minus a ten percent (10%) tolerance is herein called the "Minimum Daily Quantity." In the event Buyer purchases more than the
Minimum Daily Quantity on any day, the difference between the quantity of residue gas actually received by Buyer on such day and the Minimum Daily Quantity shall be deemed "Excess Gas." If, and to the
extent that, Seller sells and delivers to Buyer at the Point(s) of Delivery during any month residue gas produced from wells that were newly connected and not available to be included in the
nominations for such month as set forth above, then for the remainder of such month the residue gas delivered from such newly connected wells shall be deemed "Excess Gas" for pricing purposes under
Section 8.1 hereof. In the event Seller delivers less than the Minimum Daily Quantity on any Day, the difference between the Minimum Daily Quantity and the quantity of Residue Gas actually
received by Buyer on such Day shall be deemed "Deficiency Gas" for pricing purposes under Section 8.1 hereof. Seller shall endeavor to notify Buyer prior to any significant changes in Seller's
deliveries of residue gas hereunder." 

 
 

II.    
  

        The Agreement is hereby amended by adding the following Section "c." to the end of Paragraph 8.1 of Article VIII, PRICE, BILLING AND PAYMENT: 

        "c.
The price to be paid by Seller to Buyer for each MMBtu of Deficiency Gas shall be the difference between the Index Price minus * per
MMBtu and the "Midpoint" price for the "East- Houston-Katy, Katy plant tailgate" as reported in the "DAILY PRICE SURVEY" of PLATTS GAS DAILY (as published by The
McGraw-Hill Companies, Inc.)." 

	*
	Denotes
Confidential Portion Omitted and Filed Separately with the Commission 

 
 

III.    
  

        The Agreement is hereby amended by adding the following Section "d." to the end of Paragraph 8.1 of Article VIII, PRICE, BILLING AND PAYMENT: 

        "If
gas is purchased either from 9:00 A.M. Central Time Saturday through 9:00 A.M. Central Time Monday (the "Weekend") or on a Federal Bank Reserve holiday (the "Holiday"),
the gas will be priced at the Index Price the day following the Weekend or the Holiday." 

 
 

IV.    
  

        The Agreement is hereby amended by adding the following to the end of Paragraph 8.2 of Article VIII, PRICE, BILLING, AND PAYMENT: 

        "In
the event that Seller is required to pay Buyer for Deficiency Gas during a given Month, then the amounts due to both parties for such Month shall be aggregated and Buyer and Seller
shall discharge their obligations to pay through netting, in which case Buyer, when owing the greater aggregate amount may pay to Seller the difference between the amounts owed." 

 
 

V.    
  

        The Agreement is hereby amended by adding the following sentence to the end of the first paragraph of Section 11.1 of Article XI, FORCE MAJEURE: 

        "Premature,
partial or entire failure of Seller's Gas supply does not constitute a Force Majeure event." 

        This
Amendment shall become effective as of October 1, 2001. 

        Except
as herein specifically modified and amended, all terms, provisions, covenants and conditions of the Agreement shall remain in full force and effect. 

        IN
WITNESS WHEREOF, this Amendment to Gas Sales Agreement has been executed in duplicate originals on the dates written below. 

	BUYER:	 	SELLER:
	 	 	 	 	 	 	 
	TEJAS GAS MARKETING LLC	 	CROSSTEX CCNG MARKETING, L.P.
	 	 	 	 	 	 	 
	BY:	 	/s/  ROBERT CLARK      
	 	BY:	 	/s/  JAMES R. WALES      

	TITLE:	 	Robert Clark
	 	TITLE:	 	James R. Wales

	DATE:	 	Senior Vice President
	 	DATE:	 	Executive Vice President

QuickLinks

Exhibit 10.6

GAS SALES AGREEMENT BETWEEN TEJAS GAS MARKETING, LLC "BUYER" AND CORPUS CHRISTI GAS MARKETING, L.P. AND CORPUS CHRISTI GAS PROCESSING, L.P. "SELLER"

TABLE OF CONTENTS

GAS SALES CONTRACT

ARTICLE I DEFINITIONS

ARTICLE II QUANTITY

ARTICLE III POINT(S) OF DELIVERY

ARTICLE IV DELIVERY PRESSURE

ARTICLE V MEASURING EQUIPMENT AND TESTING

ARTICLE VI MEASUREMENT SPECIFICATIONS

ARTICLE VII QUALITY

ARTICLE VIII PRICE, BILLING AND PAYMENT

ARTICLE IX TERM

ARTICLE X WARRANTIES, INDEMNIFICATION

ARTICLE XI FORCE MAJEURE

ARTICLE XII TAXES

ARTICLE XIII GOVERNMENTAL REGULATIONS

ARTICLE XIV CERTAIN ADDITIONAL OBLIGATIONS OF EACH PARTY

ARTICLE XV ASSIGNMENT

ARTICLE XVI MISCELLANEOUS

AMENDMENT TO GAS SALES AGREEMENT

I.

II.

III.

IV.

V.

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