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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 10-Q







|þ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ---------------------------------------------------------------------------------------

for the quarterly period ended June 30, 2015

OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

for the transition period from
 to

Commission File Number: 001-35459





WHITING USA
TRUST II

(Exact name of registrant as specified in its charter)







|                                                         |  |  |  |                    
|-------------------------------------------------------- |  |  |  | -------------------
|Delaware                                                 |  |  |  | 38-7012326         
|(State or other jurisdiction of                          |  |  |  | (I.R.S. Employer   
|incorporation or organization)                           |  |  |  | Identification No.)
|                                                         |  | 
|The Bank of New York Mellon
Trust Company, N.A., Trustee |  |  |  |                    
|Global Corporate Trust                                   |  |  |  |                    
|919 Congress Avenue                                      |  |  |  |                    
|Austin, Texas                                            |  |  |  | 78701              
|(Address of principal executive offices)                 |  |  |  | (Zip Code)         



|                                                     |  |                |  | 
|---------------------------------------------------- |  | -------------- |  | 
|                                                     |  | (512) 236-6599 |  | 
|(Registrants telephone number, including area code)





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 þ No  ̈

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   ̈            No   ̈



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.:



|                          |  |                                               |  |                         |  |                            
|------------------------- |  | --------------------------------------------- |  | ----------------------- |  | ---------------------------
|Large accelerated filer  ̈ |  | Accelerated filer þ                           |  | Non-accelerated filer  ̈ |  | Smaller reporting company  ̈
|                          |  | (Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes  ̈ No þ

As of August 7, 2015, 18,400,000 Units of Beneficial Interest in Whiting USA Trust II were outstanding.









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TABLE OF CONTENTS



|                                |  |                                                                                                 |  |   
|------------------------------- |  | ----------------------------------------------------------------------------------------------- |  | --
|Glossary of Certain Definitions |  | 3                                                                                              
|                                | 
|PART I  Financial Information  |  |                                                                                                
|                                |  |                                                                                                
|Item 1.                         |  | Financial Statements (Unaudited)                                                                |  | 6 
|                                |  | Statements of Assets, Liabilities and Trust Corpus as of June 30, 2015 and December 31,
2014    |  | 6 
|                                |  | Statements of Distributable Income for the Three and Six Months Ended June 30, 2015 and
2014    |  | 6 
|                                |  | Statements of Changes in Trust Corpus for the Three and Six Months Ended June 30, 2015 and
2014 |  | 6 
|                                |  | Notes to Modified Cash Basis Financial Statements                                               |  | 7 
|Item 2.                         |  | Trustees Discussion and Analysis of Financial Condition and Results of Operations              |  | 11
|Item 3.                         |  | Quantitative and Qualitative Disclosures About Market Risk                                      |  | 19
|Item 4.                         |  | Controls and Procedures                                                                         |  | 19
|                                | 
|PART II  Other Information     |  |                                                                                                
|                                |  |                                                                                                
|Item 1A.                        |  | Risk Factors                                                                                    |  | 20
|Item 6.                         |  | Exhibits                                                                                        |  | 20
|Signatures                      |  | 21                                                                                             
|Exhibit Index                   |  | 22                                                                                             



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GLOSSARY OF CERTAIN DEFINITIONS

The following are definitions of significant terms used in this report:

August 2015 distribution The cash distribution to Trust unitholders of record on August 19, 2015, which is payable on
or before August 31, 2015.

Bbl One stock tank barrel, or 42 U.S. gallons liquid volume, used in this report in
reference to oil and other liquid hydrocarbons.

BOE One stock tank barrel of oil equivalent, computed on an
approximate energy equivalent basis that one Bbl of crude oil equals six Mcf of natural gas and one Bbl of crude oil equals one Bbl of natural gas liquids.

Btu orBritish thermal unit The quantity of heat required to raise the temperature of one pound of water
one degree Fahrenheit.

completion The installation of permanent equipment for the production of oil or natural gas, or
in the case of a dry hole, the reporting of abandonment to the appropriate agency.

COPAS The Council of Petroleum
Accountants Societies, Inc.

costless collar An options position where the proceeds from the sale of a call option at
its inception fund the purchase of a put option at its inception.

deterministic method The method of estimating
reserves or resources using a single value for each parameter (from the geoscience, engineering or economic data) in the reserves calculation.

differential The difference between a benchmark price of oil and natural gas, such as the NYMEX crude oil spot price, and
the wellhead price received.

FASB ASC The Financial Accounting Standards Board Accounting Standards Codification.

February 2014 distribution The cash distribution to Trust unitholders of record on February 19, 2014 that was paid on
March 3, 2014.

February 2015 distribution The cash distribution to Trust unitholders of record on
February 19, 2015 that was paid on March 2, 2015.

field An area consisting of either a single reservoir or
multiple reservoirs, all grouped on or related to the same individual geological structural feature and/or stratigraphic condition. There may be two or more reservoirs in a field that are separated vertically by intervening impervious strata, or
laterally by local geologic barriers, or both. Reservoirs that are associated by being in overlapping or adjacent fields may be treated as a single or common operational field. The geological terms structural feature and
stratigraphic condition are intended to identify localized geological features as opposed to the broader terms of basins, trends, provinces, plays, areas of interest, etc.

GAAP Generally accepted accounting principles in the United States of America.

gross wells The total wells in which a working interest is owned.

lease operating expense or LOE The expenses of lifting oil or gas from a producing formation to the
surface, constituting part of the current operating expenses of a working interest, and also including labor, superintendence, supplies, repairs, short-lived assets, maintenance, allocated overhead costs and other expenses incidental to production,
but not including lease acquisition or drilling or completion expenses.

May 2014 distribution The cash distribution to
Trust unitholders of record on May 20, 2014 that was paid on May 30, 2014.

May 2015 distribution The cash
distribution to Trust unitholders of record on May 20, 2015 that was paid on June 1, 2015.

MBbl One thousand
barrels of crude oil or other liquid hydrocarbons.



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MBOE One thousand BOE.

Mcf One thousand standard cubic feet, used in reference to natural gas.

MMBOE One million BOE.

MMBtu One million Btu.

MMcf One million standard cubic feet, used in reference to natural gas.

net profits interest or NPI 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.

net wells The sum of the fractional working interests owned in gross wells.

NYMEX The New York Mercantile Exchange.

plugging and abandonment Refers to the sealing off of fluids in the strata penetrated by a well so that the fluids from one
stratum will not escape into another or to the surface. Regulations of many states require plugging of abandoned wells.

proved
reserves Those reserves 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 all of the following:



| | a. | The area identified by drilling and limited by fluid contacts, if any, and
| | -- | --------------------------------------------------------------------------



| | b. | 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.
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Reserves that can be produced
economically through application of improved recovery techniques (including, but not limited to, fluid injection) are included in the proved classification when both of the following occur:



| | a. | 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
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | b. | 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 before 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.

reasonable certainty If deterministic
methods are used, reasonable certainty means a high degree of confidence that the quantities will be recovered. If probabilistic methods are used, there should be at least a 90 percent probability that the quantities actually recovered will equal or
exceed the estimate. A high degree of confidence exists if the quantity is much more likely to be achieved than not, and, as changes due to increased availability of geoscience (geological, geophysical and geochemical), engineering and economic data
are made to estimated ultimate recovery with time, reasonably certain estimated ultimate recovery is much more likely to increase or remain constant than to decrease.



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reserves Estimated remaining quantities of oil and gas and related substances
anticipated to be economically producible, as of a given date, by application of development projects to known accumulations. In addition, there must exist, or there must be a reasonable expectation that there will exist, the legal right to produce
or a revenue interest in the production, installed means of delivering oil and gas or related substances to market, and all permits and financing required to implement the project.

reservoir A porous and permeable underground formation containing a natural accumulation of producible crude oil and/or
natural gas that is confined by impermeable rock or water barriers and is individual and separate from other reservoirs.

royalty The amount or fee paid to the owner of mineral rights, expressed as a percentage or fraction of gross income from
crude oil or natural gas produced and sold, unencumbered by expenses relating to the drilling, completing or operating of the affected well.

SEC The United States Securities and Exchange Commission.

working interest The interest in a crude oil and natural gas property (normally a leasehold interest) that gives the owner
the right to drill, produce and conduct operations on the property and to share in production, subject to all royalties, overriding royalties and other burdens and the obligation to share in all costs of exploration, development and operations and
all risks in connection therewith.

workover Operations on a producing well to restore or increase production.



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PART I  FINANCIAL INFORMATION

Item 1. Financial Statements.

WHITING USA TRUST II

Statements of Assets, Liabilities and Trust Corpus (Unaudited)

(In thousands, except unit data)





|                                                                                                    |  |              |        |  |                  |   |        | 
|--------------------------------------------------------------------------------------------------- |  | ------------ | ------ |  | ---------------- | - | ------ | 
|                                                                                                    |  | June 30,2015 |        |  | December 31,2014 |  
|ASSETS                                                                                              |  |              |        |  |                  |   |        | 
|Cash and short-term investments                                                                     |  | $            | 277    |  |                  | $ | 290    | 
|Investment in net profits interest, net                                                             |  |              | 52,223 |  |                  |   | 57,789 | 
|                                                                                                    |  |              |        |  |                  |   |        | 
|Total assets                                                                                        |  | $            | 52,500 |  |                  | $ | 58,079 | 
|                                                                                                    |  |              |        |  |                  |   |        | 
|                                                                                                    |  |             
|LIABILITIES AND TRUST CORPUS                                                                        |  |              |        |  |                  |   |        | 
|Reserve for Trust expenses                                                                          |  | $            | 277    |  |                  | $ | 290    | 
|Trust corpus (18,400,000 Trust units issued and outstanding at June 30, 2015 and
December 31, 2014) |  |              | 52,223 |  |                  |   | 57,789 | 
|                                                                                                    |  |              |        |  |                  |   |        | 
|Total liabilities and Trust corpus                                                                  |  | $            | 52,500 |  |                  | $ | 58,079 | 
|                                                                                                    |  |              |        |  |                  |   |        | 

Statements of Distributable Income (Unaudited)

(In thousands, except distributable income per unit data)





|                                                         |  |                            |          |  |                          |   |          |      |  |   |          |  |  |   |          | 
|-------------------------------------------------------- |  | -------------------------- | -------- |  | ------------------------ | - | -------- | ---- |  | - | -------- |  |  | - | -------- | 
|                                                         |  | Three Months EndedJune 30, |          |  | Six Months EndedJune 30, |  
|                                                         |  | 2015                       |          |  | 2014                     |   |          | 2015 |  |   | 2014     | 
|Income from net profits interest                         |  | $                          | 536      |  |                          | $ | 12,595   |      |  | $ | 6,712    |  |  | $ | 24,786   | 
|General and administrative expenses                      |  |                            | (212)    |  |                          |   | (214)    |      |  |   | (463)    |  |  |   | (515)    | 
|Cash reserves (withheld) used for current Trust expenses |  |                            | (88)     |  |                          |   | (36)     |      |  |   | 13       |  |  |   | 65       | 
|State income tax withholding                             |  |                            | -        |  |                          |   | (3)      |      |  |   | (5)      |  |  |   | (8)      | 
|                                                         |  |                            |          |  |                          |   |          |      |  |   |          |  |  |   |          | 
|Distributable income                                     |  | $                          | 236      |  |                          | $ | 12,342   |      |  | $ | 6,257    |  |  | $ | 24,328   | 
|                                                         |  |                            |          |  |                          |   |          |      |  |   |          |  |  |   |          | 
|                                                         |  |                            |          | 
|Distributable income per unit                            |  | $                          | 0.012803 |  |                          | $ | 0.670762 |      |  | $ | 0.340058 |  |  | $ | 1.322193 | 
|                                                         |  |                            |          |  |                          |   |          |      |  |   |          |  |  |   |          | 



Statements of
Changes in Trust Corpus (Unaudited)

(In thousands)





|                                                   |  |                            |         |  |                          |   |          |      |  |   |         |  |  |   |          | 
|-------------------------------------------------- |  | -------------------------- | ------- |  | ------------------------ | - | -------- | ---- |  | - | ------- |  |  | - | -------- | 
|                                                   |  | Three Months EndedJune 30, |         |  | Six Months EndedJune 30, |  
|                                                   |  | 2015                       |         |  | 2014                     |   |          | 2015 |  |   | 2014    | 
|Trust corpus, beginning of period                  |  | $                          | 54,986  |  |                          | $ | 138,461  |      |  | $ | 57,789  |  |  | $ | 144,990  | 
|Distributable income                               |  |                            | 236     |  |                          |   | 12,342   |      |  |   | 6,257   |  |  |   | 24,328   | 
|Distributions to unitholders                       |  |                            | (236)   |  |                          |   | (12,342) |      |  |   | (6,257) |  |  |   | (24,328) | 
|Amortization of investment in net profits interest |  |                            | (2,763) |  |                          |   | (5,892)  |      |  |   | (5,566) |  |  |   | (12,421) | 
|                                                   |  |                            |         |  |                          |   |          |      |  |   |         |  |  |   |          | 
|Trust corpus, end of period                        |  | $                          | 52,223  |  |                          | $ | 132,569  |      |  | $ | 52,223  |  |  | $ | 132,569  | 
|                                                   |  |                            |         |  |                          |   |          |      |  |   |         |  |  |   |          | 



The accompanying notes are an integral
part of these modified cash basis financial statements.



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WHITING USA TRUST II

NOTES TO MODIFIED CASH BASIS FINANCIAL STATEMENTS

(Unaudited)



|1. | ORGANIZATION OF THE TRUST
|-- | -------------------------

Formation of the Trust  Whiting USA Trust II (the Trust) is a statutory trust formed on
December 5, 2011 under the Delaware Statutory Trust Act, pursuant to a trust agreement (the Trust agreement) among Whiting Oil and Gas Corporation (Whiting Oil and Gas), as trustor, The Bank of New York Mellon Trust
Company, N.A., as Trustee (the Trustee) and Wilmington Trust, National Association, as Delaware Trustee (the Delaware Trustee). The initial capitalization of the Trust estate was funded by Whiting Petroleum Corporation
(Whiting) on December 8, 2011.

The Trust was created to acquire and hold a term net profits interest (NPI)
for the benefit of the Trust unitholders pursuant to a conveyance from Whiting Oil and Gas, a 100%-owned subsidiary of Whiting, to the Trust. The term NPI is an interest in certain of Whiting Oil and Gas properties located in the Permian
Basin, Rocky Mountains, Gulf Coast and Mid-Continent regions (the underlying properties). The NPI is the only asset of the Trust, other than cash reserves held for future Trust expenses. As of December 31, 2014, these oil and gas
properties included interests in approximately 1,314 gross (388.7 net) producing oil and gas wells.

The NPI is passive in nature, and the
Trustee has no management control over and no responsibility relating to the operation of the underlying properties. The NPI entitles the Trust to receive 90% of the net proceeds from the sale of production from the underlying properties. The NPI
will terminate on the later to occur of (1) December 31, 2021, or (2) the time when 11.79 MMBOE have been produced from the underlying properties and sold (which amount is the equivalent of 10.61 MMBOE in respect of the Trusts right
to receive 90% of the net proceeds from such reserves pursuant to the NPI), and the Trust will soon thereafter wind up its affairs and terminate, after which it will pay no further distributions. As of June 30, 2015 on a cumulative accrual
basis, 5.19 MMBOE (49%) of the Trusts total 10.61 MMBOE have been produced and sold, and the remaining minimum reserve quantities of 5.42 MMBOE (at the 90% NPI) are projected to be produced prior to December 31, 2021, based on the
Trusts reserve report as of December 31, 2014. Since the Trust is not currently expected to contractually terminate until December 31, 2021, additional reserves and production attributable to the NPI may be available for distribution
to unitholders (also based on the 2014 year-end reserve report) between the time that the Trusts minimum 10.61 MMBOE have been produced and sold and the expected December 31, 2021 termination date of the Trust occurs. The Trusts
2014 Annual Report on Form 10-K includes additional information on the Trusts reserves as of December 31, 2014.

The Trustee
can authorize the Trust to borrow money for the purpose of paying Trust administrative or incidental expenses that exceed cash held by the Trust. The Trustee may authorize the Trust to borrow from the Trustee, Whiting or the Delaware Trustee as a
lender, provided that the terms of the loan are similar to the terms it would grant to a similarly situated commercial customer with whom it did not have a fiduciary relationship. The Trustee may also deposit funds awaiting distribution in an
account with itself, which may be a non-interest bearing account, and make other short term investments with the funds distributed to the Trust. As of June 30, 2015 and December 31, 2014, the Trust had no outstanding borrowings.

Initial Issuance of Trust Units and Net Profits Interest Conveyance  On March 21, 2012, the registration statement on
Form S-1/S-3 (Registration No. 333-178586) filed by Whiting and the Trust in connection with the initial public offering of the Trusts units was declared effective by the SEC. On March 28, 2012, the Trust issued 18,400,000 Trust
units to Whiting in exchange for the conveyance of the term NPI, which is described above, from Whiting Oil and Gas. Immediately thereafter, Whiting completed an initial public offering of units of beneficial interest in the Trust, selling
18,400,000 Trust units to the public at $20.00 per unit.



|2. | BASIS OF ACCOUNTING
|-- | -------------------

Interim Financial Statements The accompanying unaudited financial information has been prepared
by the Trustee in accordance with the instructions to the Quarterly Report on Form 10-Q. The accompanying financial information is prepared on a comprehensive basis of accounting other than GAAP. In the opinion of the Trustee, the accompanying
financial statements include all adjustments (consisting of normal and recurring adjustments) necessary to present fairly, in all material respects, the results of the Trust for the interim periods presented. However, operating results for the
periods presented are not necessarily indicative of the results that may be expected for the full year. The modified cash basis financial statements and related notes included in this Quarterly Report on Form 10-Q should be read in conjunction
with the Trusts financial statements and related notes included in the Trusts 2014 Annual Report on Form 10-K.



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Term Net Profits Interest  The Trust uses the modified cash basis of
accounting to report Trust receipts from the term NPI and payments of expenses incurred. Actual cash distributions to the Trust are made based on the terms of the conveyance that created the Trusts NPI. The term NPI entitles the Trust to
receive revenues (oil, gas and natural gas liquid sales) less expenses (the amount by which all royalties; lease operating expenses including well workover costs; development costs; production and property taxes; maintenance expenses; producing
overhead; and amounts that may be reserved for future development, maintenance or operating expenses, which reserve amounts may not exceed $2.0 million; exceed hedge payments received by Whiting under hedge contracts and other non-production
revenue) of the underlying properties multiplied by 90% (term NPI percentage). Actual cash receipts may vary due to timing delays of cash receipts from the property operators or purchasers and due to wellhead and pipeline volume balancing agreements
or practices.

Modified Cash Basis of Accounting The financial statements of the Trust, as prepared on a
modified cash basis, reflect the Trusts assets, liabilities, Trust corpus, earnings and distributions, as follows:



| | a) | Income from net profits interest is recorded when NPI distributions are received by the Trust;
| | -- | ----------------------------------------------------------------------------------------------



| | b) | Distributions to Trust unitholders are recorded when paid by the Trust;
| | -- | -----------------------------------------------------------------------



| | c) | Trust general and administrative expenses (which include the Trustees fees as well as accounting, engineering, legal, and other professional
fees) are recorded when paid;
| | -- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | d) | Cash reserves for Trust expenses may be established by the Trustee for certain expenditures that would not be recorded as contingent liabilities
under GAAP;
| | -- | ------------------------------------------------------------------------------------------------------------------------------------------------------------



| | e) | Amortization of the investment in net profits interest is calculated based on the units-of-production method. Such amortization is charged directly
to Trust corpus and does not affect distributable income; and
| | -- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| | f) | The Trust evaluates impairment of the investment in net profits interest by comparing the undiscounted cash flows expected to be realized from the
investment in net profits interest to the NPI carrying value. If the expected future undiscounted cash flows are less than the carrying value, the Trust recognizes an impairment loss for the difference between the carrying value and the estimated
fair value of the investment in net profits interest. The fair value of the NPI is determined using the expected net discounted future cash flows from the underlying properties that are attributable to the net profits interest. The determination as
to whether the NPI is impaired requires a significant amount of judgment by the Trustee and is based on the best information available to the Trustee at the time of the evaluation.
| | -- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

While these statements differ from financial statements prepared in accordance with GAAP, the modified cash basis of reporting revenues and
distributions is considered to be the most meaningful for the Trusts activities and results because quarterly distributions to the Trust unitholders are based on net cash receipts. This comprehensive basis of accounting other than GAAP
corresponds to the accounting permitted for royalty trusts by the SEC as specified by FASB ASC Topic 932, Extractive Activities  Oil and Gas: Financial Statements of Royalty Trusts.

Most accounting pronouncements apply to entities whose financial statements are prepared in accordance with GAAP, directing such entities to
accrue or defer revenues and expenses in a period other than when such revenues are received or expenses are paid. Because the Trusts financial statements are prepared on the modified cash basis as described above, however, most accounting
pronouncements are not applicable to the Trusts financial statements.

Recent Accounting Pronouncements
There were no accounting pronouncements issued during the six months ended June 30, 2015 applicable to the Trust or its financial statements.



|3. | INVESTMENT IN NET PROFITS INTEREST
|-- | ----------------------------------

Whiting Oil and Gas conveyed the NPI to the Trust in exchange for 18,400,000 Trust units. The investment in net profits
interest was recorded at the historical cost basis of Whiting on March 28, 2012, the date of conveyance (except for the derivatives which were reflected at their fair value as of March 31, 2012), and was determined to be $194.0 million. As
of December 31, 2014, the investment in net profits interest with a carrying value of $120.6 million was written down to its fair value of $57.8 million, resulting in a $62.8 million impairment charged directly to Trust corpus. Accumulated
amortization of the investment in net profits interest as of June 30, 2015 and December 31, 2014 was $5.6 million and zero, respectively.



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|4. | INCOME TAXES
|-- | ------------

The Trust is a grantor trust and therefore is not subject to federal income taxes. Accordingly, no recognition is given to
federal income taxes in the Trusts financial statements. The Trust unitholders are treated as the owners of Trust income and corpus, and the entire taxable income of the Trust is reported by the Trust unitholders on their respective tax
returns.

For Montana state income tax purposes, Whiting must withhold from its NPI payments to the Trust, an amount equal to 6% of the
net amount payable to the Trust from the sale of oil and gas in Montana. For Arkansas, Colorado, Michigan, Mississippi, New Mexico, North Dakota and Oklahoma, neither the Trust nor Whiting is withholding the income tax due such states on
distributions made to an individual resident or nonresident Trust unitholder, as long as the Trust is taxed as a grantor trust under the Internal Revenue Code.



|5. | DISTRIBUTION TO UNITHOLDERS
|-- | ---------------------------

Actual cash distributions to the Trust unitholders depend on the volumes of and prices received for oil, natural gas and
natural gas liquids produced from the underlying properties, among other factors. Quarterly cash distributions during the term of the Trust are made by the Trustee 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 50th day following the end of each quarter. Such amounts equal the excess, if any, of the cash received by the Trust during the quarter, over the expenses of the Trust paid during such quarter,
subject to any adjustments for changes made by the Trustee during such quarter to any cash reserves established for future expenses of the Trust.



|6. | RELATED PARTY TRANSACTIONS
|-- | --------------------------

Plugging and Abandonment During the three and six months ended June 30, 2015, Whiting
incurred $0.1 million and $0.2 million, respectively, of plugging and abandonment costs on the underlying properties. Pursuant to the terms of the conveyance agreement, plugging and abandonment charges relating to the underlying properties, net of
any proceeds received from the salvage of equipment, are funded entirely by Whiting and are not therefore included as a deduction in the calculation of net proceeds or otherwise deducted from Trust unitholders over the term of the Trust.

Operating Overhead Pursuant to the terms of its applicable joint operating agreements, Whiting deducts from the
gross oil and gas sales proceeds an overhead fee to operate those underlying properties for which Whiting has been designated as the operator. Additionally, with respect to those underlying properties for which Whiting is the operator but where
there is no operating agreement in place, Whiting deducts from the gross proceeds an overhead fee calculated in the same manner that Whiting allocates overhead to other similarly owned properties, which is customary practice in the oil and gas
industry. Operating overhead activities include various engineering, legal, and administrative functions. The fee is adjusted annually pursuant to COPAS guidelines and will increase or decrease each year based on changes in the year-end index of
average weekly earnings of crude petroleum and natural gas workers. The following table presents the Trusts portion of these overhead charges for the distributions made during the three and six months ended June 30, 2015 and 2014:



|                                                   |  |                             |         |  |  |  |                           |   |         |  |  |      |  |   |         |  |      |  |  |   |         | 
|-------------------------------------------------- |  | --------------------------- | ------- |  |  |  | ------------------------- | - | ------- |  |  | ---- |  | - | ------- |  | ---- |  |  | - | ------- | 
|                                                   |  | Three Months Ended
June 30, |         |  |  |  | Six Months Ended
June 30, |  
|                                                   |  | 2015                        |         |  |  |  | 2014                      |   |         |  |  | 2015 |  |   |         |  | 2014 | 
|Total overhead charges                             |  | $                           | 414,107 |  |  |  |                           | $ | 435,573 |  |  |      |  | $ | 837,563 |  |      |  |  | $ | 875,051 | 
|Overhead charge per month per active operated well |  | $                           | 423     |  |  |  |                           | $ | 445     |  |  |      |  | $ | 428     |  |      |  |  | $ | 447     | 

Administrative Services Fee Under the terms of the administrative services
agreement, the Trust is obligated to pay a quarterly administration fee of $50,000 to Whiting 60 days following the end of each calendar quarter. General and administrative expenses in the Trusts statements of distributable income for the
three and six months ended June 30, 2015 include $50,000 and $100,000, respectively, for quarterly administrative fees paid to Whiting, and general and administrative expenses in the Trusts statements of distributable income for the three
and six months ended June 30, 2014 also include $50,000 and $100,000, respectively, for quarterly administrative fees paid to Whiting.

Trustee Administrative Fee Under the terms of the Trust agreement, the Trust pays an annual administrative fee to
the Trustee of $175,000, which is paid in four quarterly installments of $43,750 each and is billed in arrears. Starting in 2017, such fee escalates by 2.5% each year. General and administrative expenses in the Trusts statements of
distributable income for the three and six months ended June 30, 2015 include $43,750 and $87,500, respectively, for quarterly administrative fees paid to the Trustee, and general and administrative expenses in the Trusts statements of
distributable income for the three and six months ended June 30, 2014 include $43,750 and $87,500, respectively, for quarterly administrative fees paid to the Trustee.



9



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##### Table of Contents

Letter of Credit In June 2012, Whiting established a $1.0 million
letter of credit for the Trustee in order to provide it with a mechanism to pay the operating expenses of the Trust, in the event that Whiting should fail to lend funds to the Trust if requested to do so by the Trustee. This letter of credit will
not be used to fund NPI distributions to unitholders, and Whiting has no obligation to lend funds to the Trust. If the Trustee were to draw on the letter of credit or borrow funds from Whiting or otherwise, no further distributions would be made to
unitholders until all such amounts have been repaid by the Trust.



|7. | SUBSEQUENT EVENT
|-- | ----------------

On August 6, 2015, the Trustee announced the Trust distribution of net profits for the second quarterly payment period
in 2015. Unitholders of record on August 19, 2015 are expected to receive a distribution of $0.158632 per Trust unit, which is payable on or before August 31, 2015. This aggregate distribution to all Trust unitholders is expected to
consist of net cash proceeds of $3.2 million paid by Whiting to the Trust, less a provision of $250,000 for estimated Trust expenses and $3,044 for Montana state income tax withholdings.



10



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##### Table of Contents

Item 2. Trustees Discussion and Analysis of Financial Condition and
Results of Operations

References to the Trust in this document refer to Whiting USA Trust II. References to
Whiting in this document refer to Whiting Petroleum Corporation and its subsidiaries. References to Whiting Oil and Gas in this document refer to Whiting Oil and Gas Corporation, a 100%-owned subsidiary of Whiting Petroleum
Corporation.

The following review of the Trusts financial condition and results of operations should be read in conjunction with
the financial statements and notes thereto, as well as the Trustees discussion and analysis contained in the Trusts 2014 Annual Report on Form 10-K. The Trusts Annual Report on Form 10-K, Quarterly Reports on Form 10-Q,
Current Reports on Form 8-K and all amendments to those reports are available on the SECs website www.sec.gov.

Note Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q includes forward-looking statements within the meaning of Section 27A of the Securities
Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical facts included in this Quarterly Report on Form 10-Q, including without limitation the statements
under Trustees Discussion and Analysis of Financial Condition and Results of Operations are forward-looking statements. No assurance can be given that such expectations will prove to have been correct. When used in this document,
the words believes, expects, anticipates, intends or similar expressions are intended to identify such forward-looking statements. The following important factors, in addition to those discussed
elsewhere in this Quarterly Report on Form 10-Q, could affect the future results of the energy industry in general, and Whiting and the Trust in particular, and could cause actual results to differ materially from those expressed in such
forward-looking statements:



| |  |  | the effect of changes in commodity prices and conditions in the capital markets;
| | - |  | --------------------------------------------------------------------------------



| |  |  | uncertainty of estimates of oil and natural gas reserves and production;
| | - |  | ------------------------------------------------------------------------



| |  |  | risks incident to the operation and drilling of oil and natural gas wells;
| | - |  | --------------------------------------------------------------------------



| |  |  | future production and development costs;
| | - |  | ----------------------------------------



| |  |  | the inability to access oil and natural gas markets due to market conditions or operational impediments;
| | - |  | --------------------------------------------------------------------------------------------------------



| |  |  | failure of the underlying properties to yield oil or natural gas in commercially viable quantities;
| | - |  | ---------------------------------------------------------------------------------------------------



| |  |  | the effect of existing and future laws and regulatory actions;
| | - |  | --------------------------------------------------------------



| |  |  | competition from others in the energy industry;
| | - |  | -----------------------------------------------



| |  |  | inflation or deflation; and
| | - |  | ---------------------------



| |  |  | other risks described under the caption Risk Factors in the Trusts 2014 Annual Report on Form 10-K.
| | - |  | ------------------------------------------------------------------------------------------------------

All subsequent written and oral forward-looking statements attributable to Whiting or the Trust or persons acting on behalf of Whiting or the
Trust are expressly qualified in their entirety by these factors. The Trustee assumes no obligation, and disclaims any duty, to update these forward-looking statements.

Overview and Trust Termination

The
Trust does not conduct any operations or activities. The Trusts purpose is, in general, to hold the NPI, to distribute to unitholders cash that the Trust receives pursuant to the NPI, and to perform certain administrative functions with
respect to the NPI and the Trust units. The Trust derives substantially all of its income and cash flows from the NPI, which was in turn subject to commodity hedge contracts through December 31, 2014 (which effects impacted the February 2015
distribution and ceased thereafter). The NPI entitles the Trust to receive 90% of the net proceeds from the sale of production from the underlying properties.

Oil and gas prices historically have been volatile and may fluctuate widely in the future. The table below highlights these price trends by
listing quarterly average NYMEX crude oil and natural gas prices for the periods indicated through June 30, 2015. The May 2015 distribution occurring in the second quarter of 2015 was mainly affected, however, by January 2015 through March 2015
oil prices and December 2014 through February 2015 natural gas prices.



11



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##### Table of Contents

|                        |  |      |   |       |  |      |  |    |       |    |  |    |   |        |  |    |  |    |       |    |  |  |   |       |  |  |  |   |        |  |  |  |   |       |  |  |  |   |       |  |  |  |   |       |  |  |  |   |       | 
|----------------------- |  | ---- | - | ----- |  | ---- |  | -- | ----- | -- |  | -- | - | ------ |  | -- |  | -- | ----- | -- |  |  | - | ----- |  |  |  | - | ------ |  |  |  | - | ----- |  |  |  | - | ----- |  |  |  | - | ----- |  |  |  | - | ----- | 
|                        |  | 2013 |   | 2014  |  | 2015
|                        |  | Q1   |   | Q2    |  | Q3   |  | Q4 |       | Q1 |  | Q2 |   | Q3     |  | Q4 |  | Q1 |       | Q2
|Crude oil (per Bbl)     |  |      | $ | 94.34 |  |      |  | $  | 94.23 |    |  |    | $ | 105.82 |  |    |  | $  | 97.50 |    |  |  | $ | 98.62 |  |  |  | $ | 102.98 |  |  |  | $ | 97.21 |  |  |  | $ | 73.12 |  |  |  | $ | 48.57 |  |  |  | $ | 57.96 | 
|Natural gas (per MMBtu) |  |      | $ | 3.34  |  |      |  | $  | 4.10  |    |  |    | $ | 3.58   |  |    |  | $  | 3.60  |    |  |  | $ | 4.93  |  |  |  | $ | 4.68   |  |  |  | $ | 4.07  |  |  |  | $ | 4.04  |  |  |  | $ | 2.99  |  |  |  | $ | 2.61  | 

Oil prices have fallen significantly since reaching highs of over $105.00 per Bbl in June 2014, dropping below
$45.00 per Bbl in March 2015. Natural gas prices have also declined from over $4.80 per MMBtu in April 2014 to below $2.50 per MMBtu in April 2015. In addition, forecasted prices for both oil and gas for 2015 have also declined. Lower oil and gas
prices on production from the underlying properties could cause the following: (i) a reduction in the amount of net proceeds to which the Trust is entitled; and (ii) a reduction in the amount of oil, natural gas and natural gas liquids
that is economic to produce from the underlying properties causing an extension of the length of time required to produce 11.79 MMBOE (10.61 MMBOE at the 90% NPI). If prices remain at current levels, the amount of net proceeds to which the Trust is
entitled is likely to be substantially lower than the net proceeds the Trust has received and distributed to Trust unitholders in the past. Alternatively, higher oil and natural gas prices may potentially result in an increase in the amount of oil,
natural gas and natural gas liquids that is economic to produce from the underlying properties. All costless collar hedge contracts that Whiting entered into, and in turn conveyed to the Trust, terminated as of December 31, 2014 (which hedging
effects extended through the February 2015 distribution to unitholders) and no additional hedges are allowed to be placed on the Trust assets. Consequently, for all future quarterly payments there will be no cash settlement gains or losses on
commodity derivatives, and the Trust has increased exposure to oil and natural gas price volatility.

Trust Termination.The NPI
will terminate on the later to occur of (1) December 31, 2021, or (2) the time when 11.79 MMBOE (10.61 MMBOE at the 90% NPI) have been produced and sold from the underlying properties, and the Trust will soon thereafter wind up its
affairs and terminate, after which it will pay no further distributions. Since the assets of the Trust are depleting assets, a portion of each cash distribution paid on the Trust units is to be considered by investors as a return of capital, with
the remainder being considered as a return on investment or yield. As a result, the market price of the Trust units will decline to zero at termination of the Trust. As of June 30, 2015 on a cumulative accrual basis, 5.19 MMBOE (49%) of
the Trusts total 10.61 MMBOE have been produced and sold (of which proceeds from the sale of 319 MBOE, which is 90% of 354 MBOE, will be distributed to the unitholders in the Trusts forthcoming August 2015 distribution). The remaining
minimum reserve quantities are projected to be produced prior to December 31, 2021, based on the Trusts reserve report as of December 31, 2014. Since the net profit interest is not currently expected to contractually terminate until
December 31, 2021, however, additional reserves and production attributable to the NPI may be available for distribution to unitholders (also based on the 2014 year-end reserve report) between the time that the Trusts minimum 10.61 MMBOE
have been produced and sold and the expected December 31, 2021 termination date of the net profit interest occurs. Accordingly, the Trusts remaining reserves attributable to the 90% NPI were estimated to be 6.60 MMBOE as of
December 31, 2014, which is more than the minimum, but there is no assurance that the Trust will receive more than the minimum amount of reserves. The Trusts 2014 Annual Report on Form 10-K includes additional information on the
Trusts reserves as of December 31, 2014.

Capital Expenditure Activities

The primary goal of the planned capital expenditures relative to the underlying properties is to mitigate a portion of the natural decline in
production from producing properties. The underlying properties have a capital expenditure budget per the December 31, 2014 reserve report of $27.5 million estimated to be spent over seven years. No assurance can be given, however, that any
such expenditures will be made, or if made, will result in production in commercially paying amounts, if any, or that the characteristics of any newly developed well will match the characteristics of existing wells on the underlying properties or
the operators historical drilling success rate. In addition, no assurance can be given that Whitings actual level of capital expenditures on the underlying properties will meet this $27.5 million amount of budgeted capital expenditures
over the next seven years. With respect to fields for which Whiting is not the operator, Whiting has limited control over the timing and amount of capital expenditures relative to such fields. Please read the Trusts Annual Report on Form 10-K
for the fiscal year ended December 31, 2014, Item 1A. Risk Factors Whiting has limited control over activities on the underlying properties that Whiting does not operate, which could reduce production from the underlying properties,
increase capital expenditures and reduce cash available for distribution to Trust unitholders.

During each twelve-month period
beginning on the later to occur of (1) December 31, 2017 and (2) the time when 8.24 MMBOE have been produced from the underlying properties and sold (which is the equivalent of 7.41 MMBOE attributable to the 90% NPI) (in either case,
the capital expenditure limitation date), the sum of the capital expenditures and amounts reserved for approved capital expenditure projects for such twelve-month period may not exceed the average annual capital expenditure amount. The
average annual capital expenditure amount means the quotient of (x) the sum of the capital expenditures and amounts reserved for approved capital expenditure projects with respect to the three twelve-month periods ending on the
capital expenditure limitation date, divided by (y) three. Commencing on the capital expenditure limitation date, and each anniversary of the capital expenditure limitation date thereafter, the average annual capital expenditure amount will be
increased by 2.5% to account for expected increased costs due to inflation.



12



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##### Table of Contents

The following table presents the underlying properties aggregate capital expenditures
attributable to the February 2015 and May 2015 distributions (in thousands):



|                |  |                          |       | 
|--------------- |  | ------------------------ | ----- | 
|Region          |  | 2015 CapitalExpenditures |      
|Rocky Mountains |  | $                        | 2,030 | 
|Permian Basin   |  |                          | 843   | 
|Gulf Coast      |  |                          | 80    | 
|Mid-Continent   |  |                          | 31    | 
|                |  |                          |       | 
|Total           |  | $                        | 2,984 | 
|                |  |                          |       | 



13



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##### Table of Contents

Results of Trust Operations

Comparison of Results of the Trust for the Six Months Ended June 30, 2015 and 2014

The following is a summary of income from net profits interest and distributable income received by the Trust for the six
months ended June 30, 2015 and 2014, consisting of the February and May distributions for each respective period (dollars in thousands, except per Bbl, per Mcf and per BOE amounts):



|                                                    |  |                          |                |  |      |   |                | 
|--------------------------------------------------- |  | ------------------------ | -------------- |  | ---- | - | -------------- | 
|                                                    |  | Six Months EndedJune 30, |               
|                                                    |  | 2015                     |                |  | 2014 |  
|Sales volumes:                                      |  |                          |                |  |      |   |                | 
|Oil from underlying properties (Bbl) (a)            |  |                          | 573,364  (c)   |  |      |   | 618,858  (e)   | 
|Natural gas from underlying properties (Mcf)        |  |                          | 1,010,546  (c) |  |      |   | 1,160,415  (e) | 
|                                                    |  |                          |                |  |      |   |                | 
|Total production (BOE)                              |  |                          | 741,788        |  |      |   | 812,261        | 
|Average sales prices:                               |  |                          |                |  |      |   |                | 
|Oil (per Bbl) (a)                                   |  | $                        | 53.12          |  |      | $ | 85.82          | 
|Effect of oil hedges on average price (per Bbl) (b) |  |                          | 1.72           |  |      |   | -              | 
|                                                    |  |                          |                |  |      |   |                | 
|Oil net of hedging (per Bbl)                        |  | $                        | 54.84          |  |      | $ | 85.82          | 
|                                                    |  |                          |                |  |      |   |                | 
|                                                    |  |                         
|Natural gas (per Mcf)                               |  | $                        | 3.74  (d)      |  |      | $ | 5.54  (d)      | 
|                                                    |  |                          |                |  |      |   |                | 
|Cost metrics:                                       |  |                          |                |  |      |   |                | 
|Lease operating expenses (per BOE)                  |  | $                        | 31.07          |  |      | $ | 28.68          | 
|Production tax rate (percent of total revenues)     |  |                          | 5.1%           |  |      |   | 5.3%           | 
|Revenues:                                           |  |                          |                |  |      |   |                | 
|Oil sales (a)                                       |  | $                        | 30,457  (c)    |  |      | $ | 53,109  (e)    | 
|Natural gas sales                                   |  |                          | 3,780  (c)     |  |      |   | 6,433  (e)     | 
|                                                    |  |                          |                |  |      |   |                | 
|Total revenues                                      |  | $                        | 34,237         |  |      | $ | 59,542         | 
|                                                    |  |                          |                |  |      |   |                | 
|Costs:                                              |  |                          |                |  |      |   |                | 
|Lease operating expenses                            |  | $                        | 23,048         |  |      | $ | 23,296         | 
|Production taxes                                    |  |                          | 1,737          |  |      |   | 3,154          | 
|Development costs                                   |  |                          | 2,983          |  |      |   | 5,552          | 
|Cash settlements on commodity derivatives (b)       |  |                          | (989)          |  |      |   | -              | 
|                                                    |  |                          |                |  |      |   |                | 
|Total costs                                         |  | $                        | 26,779         |  |      | $ | 32,002         | 
|                                                    |  |                          |                |  |      |   |                | 
|                                                    |  |                         
|Net proceeds                                        |  | $                        | 7,458          |  |      | $ | 27,540         | 
|Net profits percentage                              |  |                          | 90%            |  |      |   | 90%            | 
|                                                    |  |                          |                |  |      |   |                | 
|                                                    |  |                         
|Income from net profits interest                    |  | $                        | 6,712          |  |      | $ | 24,786         | 
|                                                    |  |                          |                |  |      |   |                | 
|Provision for estimated Trust expenses              |  |                          | (450)          |  |      |   | (450)          | 
|Montana state income tax withheld                   |  |                          | (5)            |  |      |   | (8)            | 
|                                                    |  |                          |                |  |      |   |                | 
|Distributable income                                |  | $                        | 6,257          |  |      | $ | 24,328         | 
|                                                    |  |                          |                |  |      |   |                | 







|(a) | Oil includes natural gas liquids.
|--- | ---------------------------------



|(b) | As discussed in Item 3. Quantitative and Qualitative Disclosures About Market Risk in this Quarterly Report on Form 10-Q, all costless collar
hedge contracts terminated as of December 31, 2014 (which hedging effects extended through the quarterly payment period covered by the February 2015 distribution to unitholders), and no additional hedges are allowed to be placed on Trust
assets. Therefore, there will be no further cash settlements on commodity hedges, and the Trust has increased exposure to oil and natural gas price volatility for all distributions subsequent to the February 2015 distribution.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(c) | Oil and gas sales volumes and related revenues for the six months ended June 30, 2015 (consisting of Whitings February 2015 and May 2015
distributions to the Trust) generally represent crude oil production from October 2014 through March 2015 and natural gas production from September 2014 through February 2015.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Table of Contents

|(d) | The average sales price of natural gas for the gas production months within the distribution period exceeded the average NYMEX gas prices for those
same months within the period due to the liquids rich content of a portion of the natural gas volumes produced by the underlying properties.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(e) | Oil and gas sales volumes and related revenues for the six months ended June 30, 2014 (consisting of Whitings February 2014 and May 2014
distributions to the Trust) generally represent crude oil production from October 2013 through March 2014 and natural gas production from September 2013 through February 2014.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Income from Net Profits Interest.  Income from net profits interest is recorded on a cash basis when NPI proceeds are
received by the Trust from Whiting. NPI proceeds that Whiting remits to the Trust are based on the oil and gas production for which Whiting has received payment within one month following the end of the most recent fiscal quarter. Whiting receives
payment for its crude oil sales generally within 30 days following the month in which it is produced, and Whiting receives payment for its natural gas sales generally within 60 days following the month in which it is produced. Income from net
profits interest is generally a function of oil and gas revenues, lease operating expenses, production taxes, development costs and cash settlements on commodity derivatives as follows:

Revenues.    Oil and natural gas revenues decreased $25.3 million (or 42%) during the six months
ended June 30, 2015 as compared to the same 2014 period. Sales revenue is a function of average commodity prices realized and oil and gas volumes sold. The decline in revenue between periods was due to lower realized oil and natural gas prices,
as well as lower oil and natural gas production volumes. The average sales price realized for crude oil (before the effects of hedging) and natural gas decreased by 38% and 32%, respectively, between periods due to lower NYMEX oil and natural gas
prices. Crude oil production volumes declined by 45 MBbls (or 7%) and natural gas volumes declined by 150 MMcf (or 13%), when comparing the first half of 2015 to the same period in 2014 primarily due to normal field production decline, and
differences in timing associated with revenues received from non-operated parties. The decrease in oil and gas production was partially offset, however, by i) two wells that were shut-in for a portion of the 2014 period that came back online during
February 2014 and ii) one newly drilled well and two recompleted wells that came online during the last twelve months. Based on the December 31, 2014 reserve report, overall production attributable to the underlying properties is expected to
decline at an average year-over-year rate of approximately 8.0% from 2015 through the estimated December 31, 2021 NPI termination date.

Lease Operating Expenses.    Lease operating expenses decreased $0.2 million (or 1%) during the
first six months of 2015 compared to the same 2014 period primarily due to a $2.4 million decrease in oilfield goods and services and other operating costs, which were largely offset by $2.2 million in higher ad valorem taxes between periods. LOE on
a per BOE basis, however, increased 8% from $28.68 during the first half of 2014 to $31.07 for the same 2015 period. This higher LOE rate was mainly due to overall production declining at a faster rate than the fixed and semi-variable costs
attributable to the underlying properties.

Production Taxes.  Production taxes are typically calculated
as a percentage of oil and gas revenues, and production taxes as a percent of revenues remained relatively consistent for the six months ended June 30, 2015 and 2014 at 5.1% and 5.3%, respectively. Overall production taxes for the first half of
2015, however, decreased $1.4 million (or 45%) as compared to the same 2014 period, primarily due to lower oil and natural gas sales revenue between periods.

Development Costs.Development costs for the six months ended June 30, 2015 were $2.6 million (or 46%)
lower as compared to the same 2014 period. This decrease was primarily related to i) fewer well recompletions in the DEB, Keystone South and Agua Dolce fields between periods, which totaled $2.2 million and ii) reduced drilling and facility
expansion costs of $0.7 million in the Rangely Weber field.

Cash Settlements on Commodity
Derivatives.  In connection with Whitings conveyance of the net profits interest to the Trust, Whiting entered into certain costless collar hedge contracts in order to reduce the Trusts exposure to oil price volatility. If
market prices were lower than a collars price floor when the cash settlement amount was calculated, Whiting received cash proceeds from the contract counterparty. Conversely, if market prices were higher than a collars price ceiling when
the cash settlement amount was calculated, Whiting was required to pay the contract counterparty.

Cash settlements
relating to these hedges resulted in a gain of $1.0 million for the six months ended June 30, 2015, which had the effect of increasing the average price of crude oil by $1.72 per Bbl for the period. As a result, the total net crude oil price of
$54.84 per Bbl included a premium of 3% related to the effects of hedging for the first half of 2015. There were no cash settlements for these hedges during the six months ended June 30, 2014. All hedge related pricing impacts ceased after the
February 2015 distribution, while the Trusts net profits interest is currently projected to terminate on December 31, 2021 based on the Trusts December 31, 2014 reserve report. Therefore, no commodity price hedges will impact
future Trust distributions beginning with the May 2015 distribution and continuing through the NPI termination, which has the effect of increasing the Trusts exposure to oil and natural gas price volatility.



15



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##### Table of Contents

Comparison of Results of the Trust for the Three Months Ended June 30, 2015 and 2014

The following is a summary of income from net profits interest and distributable income received by the Trust for the three months ended June 30, 2015
and 2014, consisting of the May distributions for each respective period (dollars in thousands, except per Bbl, per Mcf and per BOE amounts):



|                                                |  |                            |              |  |      |   |              | 
|----------------------------------------------- |  | -------------------------- | ------------ |  | ---- | - | ------------ | 
|                                                |  | Three Months EndedJune 30, |             
|                                                |  | 2015                       |              |  | 2014 |  
|Sales volumes:                                  |  |                            |              |  |      |   |              | 
|Oil from underlying properties (Bbl) (a)        |  |                            | 283,384  (c) |  |      |   | 297,248  (d) | 
|Natural gas from underlying properties (Mcf)    |  |                            | 509,062  (c) |  |      |   | 528,361  (d) | 
|                                                |  |                            |              |  |      |   |              | 
|Total production (BOE)                          |  |                            | 368,228      |  |      |   | 385,308      | 
|Average sales prices:                           |  |                            |              |  |      |   |              | 
|Oil (per Bbl) (a)                               |  | $                          | 41.33        |  |      | $ | 86.77        | 
|Natural gas (per Mcf)                           |  | $                          | 3.04         |  |      | $ | 6.16  (e)    | 
|Cost metrics:                                   |  |                            |              |  |      |   |              | 
|Lease operating expenses (per BOE)              |  | $                          | 28.30        |  |      | $ | 28.42        | 
|Production tax rate (percent of total revenues) |  |                            | 5.1%         |  |      |   | 5.3%         | 
|Revenues:                                       |  |                            |              |  |      |   |              | 
|Oil sales (a)                                   |  | $                          | 11,711  (c)  |  |      | $ | 25,792  (d)  | 
|Natural gas sales                               |  |                            | 1,549  (c)   |  |      |   | 3,255  (d)   | 
|                                                |  |                            |              |  |      |   |              | 
|Total revenues                                  |  | $                          | 13,260       |  |      | $ | 29,047       | 
|                                                |  |                            |              |  |      |   |              | 
|Costs:                                          |  |                            |              |  |      |   |              | 
|Lease operating expenses                        |  | $                          | 10,422       |  |      | $ | 10,950       | 
|Production taxes                                |  |                            | 680          |  |      |   | 1,529        | 
|Development costs                               |  |                            | 1,563        |  |      |   | 2,573        | 
|Cash settlements on commodity derivatives (b)   |  |                            | -            |  |      |   | -            | 
|                                                |  |                            |              |  |      |   |              | 
|Total costs                                     |  | $                          | 12,665       |  |      | $ | 15,052       | 
|                                                |  |                            |              |  |      |   |              | 
|                                                |  |                           
|Net proceeds                                    |  | $                          | 595          |  |      | $ | 13,995       | 
|Net profits percentage                          |  |                            | 90%          |  |      |   | 90%          | 
|                                                |  |                            |              |  |      |   |              | 
|                                                |  |                           
|Income from net profits interest                |  | $                          | 536          |  |      | $ | 12,595       | 
|                                                |  |                            |              |  |      |   |              | 
|Provision for estimated Trust expenses          |  |                            | (300)        |  |      |   | (250)        | 
|Montana state income tax withheld               |  |                            | -            |  |      |   | (3)          | 
|                                                |  |                            |              |  |      |   |              | 
|Distributable income                            |  | $                          | 236          |  |      | $ | 12,342       | 
|                                                |  |                            |              |  |      |   |              | 







|(a) | Oil includes natural gas liquids.
|--- | ---------------------------------



|(b) | As discussed in Item 3. Quantitative and Qualitative Disclosures About Market Risk in this Quarterly Report on Form 10-Q, all costless collar
hedge contracts terminated as of December 31, 2014 (which hedging effects extended through the quarterly payment period covered by the February 2015 distribution to unitholders), and no additional hedges are allowed to be placed on Trust
assets. Therefore, there will be no further cash settlements on commodity hedges, and the Trust has increased exposure to oil and natural gas price volatility for all distributions subsequent to the February 2015 distribution.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(c) | Oil and gas sales volumes and related revenues for the three months ended June 30, 2015 (consisting of Whitings May 2015 distribution to
the Trust) generally represent crude oil production from January 2015 through March 2015 and natural gas production from December 2014 through February 2015.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(d) | Oil and gas sales volumes and related revenues for the three months ended June 30, 2014 (consisting of Whitings May 2014 distribution to
the Trust) generally represent crude oil production from January 2014 through March 2014 and natural gas production from December 2013 through February 2014.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(e) | The average sales price of natural gas for the gas production months within the distribution period exceeded the average NYMEX gas prices for those
same months within the period due to the liquids rich content of a portion of the natural gas volumes produced by the underlying properties.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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Income from Net Profits Interest.  Income from net profits interest is recorded
on a cash basis when NPI proceeds are received by the Trust from Whiting. NPI proceeds that Whiting remits to the Trust are based on the oil and gas production for which Whiting has received payment within one month following the end of the most
recent fiscal quarter. Whiting receives payment for its crude oil sales generally within 30 days following the month in which it is produced, and Whiting receives payment for its natural gas sales generally within 60 days following the month in
which it is produced. Income from net profits interest is generally a function of oil and gas revenues, lease operating expenses, production taxes and development costs as follows:

Revenues.     Oil and natural gas revenues decreased $15.8 million (or 54%) during the three months
ended June 30, 2015 as compared to the same 2014 period. Sales revenue is a function of average commodity prices realized and oil and gas volumes sold. The decline in revenue between periods was due to lower realized oil and natural gas prices,
in addition to lower oil and natural gas production volumes. The average sales price realized for crude oil and natural gas decreased by 52% and 51%, respectively, between periods due to lower NYMEX oil and natural gas prices. Crude oil production
volumes declined by 14 MBbls (or 5%) and natural gas volumes declined by 19 MMcf (or 4%), when comparing the second quarter of 2015 to the same period in 2014 primarily due to normal field production decline. The decrease in oil and gas production
was partially offset, however, by i) two wells that were shut-in for a portion of the 2014 period that came back online during February 2014, ii) one newly drilled well and two recompleted wells that came online during the last twelve months and
iii) differences in timing associated with revenues received from non-operated parties. Based on the December 31, 2014 reserve report, overall production attributable to the underlying properties is expected to decline at an average
year-over-year rate of approximately 8.0% from 2015 through the estimated December 31, 2021 NPI termination date.

Lease Operating Expenses.Lease operating expenses decreased $0.5 million (or 5%) during the
second quarter of 2015 compared to the same 2014 period primarily due to a $1.4 million decrease in oilfield goods and services and other operating costs, which was partially offset by $0.9 million in higher ad valorem taxes between periods. LOE on
a per BOE basis, however, decreased slightly between periods from $28.42 during the three months ended June 30, 2014 to $28.30 for the same 2015 period. This decrease in LOE rate was mainly related to the net decrease in overall LOE of $0.5
million between periods, which declined at a faster rate than overall production volumes during the same time period.

Production Taxes.  Production taxes are typically calculated as a percentage of oil and gas revenues, and
production taxes as a percent of revenues remained relatively consistent for the three months ended June 30, 2015 and 2014 at 5.1% and 5.3%, respectively. Overall production taxes for the second quarter of 2015, however, decreased $0.8 million
(or 56%) as compared to the same 2014 period, primarily due to lower oil and natural gas sales revenue between periods.

Development Costs.Development costs for the three months ended June 30, 2015 were $1.0
million (or 39%) lower as compared to the same 2014 period. This decrease was primarily related to fewer well recompletions in the DEB field between periods, which totaled $0.7 million.

Liquidity and Capital Resources

The Trust has no source
of liquidity or capital resources other than cash flows from the NPI. 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. Administrative expenses include payments to the Trustee and the Delaware Trustee, a quarterly fee paid to Whiting pursuant to an administrative services agreement, and expenses in connection with the discharge of the Trustees
duties, including third party engineering, audit, accounting and legal fees. Each quarter, the Trustee determines the amount of funds available for distribution to unitholders. Available funds are the excess cash, if any, received by the Trust from
the NPI and other sources (such as interest earned on any amounts reserved by the Trustee) that quarter, over the Trusts expenses for that quarter. Available funds are reduced by any cash the Trustee decides to hold as a reserve against future
liabilities. In the event that the net proceeds for any computation period is a negative amount, the Trust will receive no payment for that period, and any such negative amount plus accrued interest at the prevailing money market rate will be
deducted from gross proceeds in the following computation period for purposes of determining the net proceeds for that period. The Trustee may borrow funds required to pay liabilities if the Trustee determines that the cash on hand and the cash to
be received are insufficient to cover the Trusts liabilities. If the Trustee borrows funds, the Trust unitholders will not receive distributions until the borrowed funds are repaid.



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Income to the Trust from the NPI is based on the calculation and definitions of gross
proceeds and net proceeds contained in the conveyance agreement, which is filed as an exhibit to this report, and reference is hereby made to such conveyance agreement for the actual definitions of gross proceeds and
net proceeds.

Whiting may reserve from the gross proceeds amounts up to a total of $2.0 million at any time for future
development, maintenance or operating expenses. However, Whiting has not funded such a reserve since the inception of the Trust, including during the three and six months ended June 30, 2015 and 2014. Instead, Whiting deducted from the gross
proceeds only actual costs paid for development, maintenance and operating expenses.

Plugging and abandonment costs related to the
underlying properties, net of any proceeds received from the salvage of equipment, cannot be included as a deduction in the calculation of net proceeds pursuant to the terms of the conveyance agreement. During the three and six months ended
June 30, 2015, Whiting incurred $0.1 million and $0.2 million, respectively, of plugging and abandonment charges on the underlying properties that were not charged to the unitholders of the Trust.

In June 2012, Whiting established a $1.0 million letter of credit for the Trustee in order to provide a mechanism for the Trustee to pay the
operating expenses of the Trust, in the event that Whiting should fail to lend funds to the Trust if requested to do so by the Trustee. This letter of credit will not be used to fund NPI distributions to unitholders, and Whiting has no obligation to
lend funds to the Trust. If the Trustee were to draw on the letter of credit or borrow funds from Whiting or otherwise, no further distributions would be made to unitholders until all such amounts have been repaid by 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.

Future Trust Distributions to Unitholders

On August 6, 2015, the Trustee announced the Trust distribution of net profits for the second quarterly payment period in 2015.
Unitholders of record on August 19, 2015 are expected to receive a distribution of $0.158632 per Trust unit, which is payable on or before August 31, 2015. This aggregate distribution to all Trust unitholders is expected to consist of net
cash proceeds of $3.2 million paid by Whiting to the Trust, less a provision of $250,000 for estimated Trust expenses and $3,044 for Montana state income tax withholdings. There were no realized gains or losses on hedge settlements during the second
quarterly payment period for 2015 due to the termination of all costless collar hedge contracts as of December 31, 2014 (which hedging effects extended through the February 2015 distribution to unitholders). No additional hedges are allowed to
be placed on the Trust assets, and therefore, no commodity price hedges will impact future Trust distributions, which has the effect of increasing the Trusts exposure to oil and natural gas price volatility.

New Accounting Pronouncements

There
were no accounting pronouncements issued during the six months ended June 30, 2015 applicable to the Trust or its financial statements.

Critical
Accounting Policies and Estimates

A disclosure of critical accounting policies and the more significant judgments and estimates used
in the preparation of the Trusts financial statements is included in Item 7 of the Trusts Annual Report on Form 10-K for the year ended December 31, 2014. There have been no significant changes to the critical accounting
policies during the six months ended June 30, 2015.



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##### Table of Contents

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Commodity Hedge Contracts

The
primary asset of and source of income to the Trust is the term NPI, which generally entitles the Trust to receive 90% of the net proceeds from oil and gas production from the underlying properties. Consequently, the Trust is exposed to market risk
from fluctuations in oil and gas prices. Through 2014, however, the NPI was subject to commodity hedge contracts in the form of costless collars entered into by Whiting, which reduced the NPIs exposure to crude oil price volatility.

The revenues derived from the underlying properties depend substantially on prevailing crude oil, natural gas and natural gas liquids prices.
As a result, commodity prices also affect the amount of cash flow available for distribution to the Trust unitholders. Lower prices may also reduce the amount of oil, natural gas and natural gas liquids that Whiting can economically produce. Whiting
sells the oil, natural gas and natural gas liquid production from the underlying properties under floating market price contracts each month. Whiting entered into certain hedge contracts through December 31, 2014 to manage the exposure to crude
oil price volatility associated with revenues generated from the underlying properties, and to achieve more predictable cash flows. However, all hedging contracts terminated as of December 31, 2014, which hedging effects extended through the
quarterly payment period covered by the February 2015 distribution to unitholders. No additional hedges are allowed to be placed on Trust assets, and the Trust cannot therefore enter into derivative contracts for speculative or trading purposes.

Item 4. 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 forms. 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 Whiting 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 Trust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 (i) the Trust agreement and (ii) the conveyance of the NPI, the Trustee relies on
(A) information provided by Whiting, including historical operating data, plans for future operating and capital expenditures, reserve information and information relating to projected production, and (B) conclusions and reports regarding
reserves by the Trusts independent reserve engineers. For a description of certain risks relating to these arrangements and risks relating to the Trustees reliance on information reported by Whiting and included in the Trusts
results of operations, see the Trusts Annual Report on Form 10-K for the fiscal year ended December 31, 2014, Item 1A. Risk Factors The Trust and the Trust unitholders have no voting or managerial rights with respect to the
underlying properties. As a result, neither the Trust nor the Trust unitholders have any ability to influence the operation of the underlying properties.

Changes in Internal Control over Financial Reporting.During the quarter ended June 30, 2015, there has been no change
in the Trusts internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Trusts internal control over financial reporting. 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 Whiting.



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##### Table of Contents

PART II  OTHER INFORMATION

Item 1A. Risk Factors

Risk factors relating to the Trust are contained in Item 1A of the Trusts Annual Report on Form 10-K for the fiscal year ended
December 31, 2014. No material change to such risk factors has occurred during the six months ended June 30, 2015.

Item 6. Exhibits

The exhibits listed in the accompanying exhibit index are filed as part of this Quarterly Report on Form 10-Q.



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SIGNATURES

Pursuant to the requirements 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.



| |  |                      |  |                                                 |  |                 |  | 
| |  | -------------------- |  | ----------------------------------------------- |  | --------------- |  | 
| |  | WHITING USA TRUST II |  |                                                
| |  |                      | 
| |  | By:                  |  | THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. |  |                
| |  |                      |  |                                                
| |  |                      |  | By:                                             |  | /s/ MIKE ULRICH |  | 
| |  |                      |  |                                                 |  | Mike Ulrich     |  | 
| |  |                      |  |                                                 |  | Vice President  |  | 

August 7, 2015

The Registrant, Whiting USA Trust II, 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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EXHIBIT INDEX



|               |  |             |  |                                                                                                                                                                                                                                                                                                                                                                                |  | 
|-------------- |  | ----------- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |  | 
|Exhibit
Number |  | Description
|3.1*           |  |             |  | Certificate of Trust of Whiting USA Trust II [Incorporated herein by reference to Exhibit 3.3 to the Registration Statement on Form S-1 (Registration No.
333-178586)].                                                                                                                                                                                                        |  | 
|               |  |             | 
|3.2*           |  |             |  | Amended and Restated Trust Agreement, dated March 28, 2012, by and among Whiting Oil and Gas Corporation, The Bank of New York Mellon Trust Company, N.A.
as Trustee and Wilmington Trust, National Association, as Delaware Trustee [Incorporated herein by reference to Exhibit 3.1 to the Trusts Current Report on Form 8-K filed on March 28, 2012
(File No. 001-35459)]. |  | 
|               |  |             | 
|10.1*          |  |             |  | Conveyance and Assignment, dated March 28, 2012, from Whiting Oil and Gas Corporation to The Bank of New York Mellon Trust Company, N.A. as Trustee of
Whiting USA Trust II [Incorporated herein by reference to Exhibit 10.1 to the Trusts Current Report on Form 8-K filed on March 28, 2012 (File No. 001-35459)].                                                         |  | 
|               |  |             | 
|10.2*          |  |             |  | Administrative Services Agreement, dated March 28, 2012, by and between Whiting Oil and Gas Corporation and Whiting USA Trust II [Incorporated herein by
reference to Exhibit 10.2 to the Trusts Current Report on Form 8-K filed on March 28, 2012 (File No. 001-35459)].                                                                                                    |  | 
|               |  |             | 
|31             |  |             |  | Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                                                                                       |  | 
|               |  |             | 
|32             |  |             |  | Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                                                                                       |  | 



(*  Asterisk indicates exhibit previously filed with the SEC and incorporated herein by reference.)



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