Exhibit 99.3

MANAGEMENTS REPORT

The consolidated financial
statements as at and for the years ended December 31, 2013 and December 31, 2012 of Penn West Petroleum Ltd. were prepared by management in accordance with accounting principles generally accepted in Canada. In preparing the consolidated
financial statements, management has made estimates because a precise determination of certain assets and liabilities is dependent on future events. The financial and operating information presented in this report is consistent with that shown in
the consolidated financial statements.

Management maintains a system of internal controls to provide reasonable assurance that all assets are safeguarded
and to facilitate the preparation of relevant, reliable and timely financial records for the preparation of statements. An internal evaluation was carried out under the supervision of our CEO and CFO of the effectiveness of our internal control over
financial reporting as defined in Rule 13a-15 under the Exchange Act and as defined in Canada by NI 52-109. The assessment was based on the framework in Internal Control  Integrated Framework (1992) issued by the Committee of Sponsoring
Organizations of the Treadway Commission (COSO). Based on that evaluation, the CEO and the CFO concluded that as of December 31, 2013 our internal control over financial reporting was effective.

The consolidated financial statements have been examined by the external auditors and approved by the Board of Directors. The Board of Directors
financial statement related responsibilities are fulfilled through the Audit Committee. The Audit Committee is composed entirely of independent directors. The Audit Committee recommends appointment of the external auditors to the Board of Directors,
assesses their independence, and approves their fees. The Audit Committee meets regularly with management and the external auditors to discuss reporting and control issues and to ensure each party is properly discharging its responsibilities. The
external auditors have full and unrestricted access to the Audit Committee to discuss their audit and their related findings as to the integrity of the financial reporting process.



|                     |  |                                |  | 
|-------------------- |  | ------------------------------ |  | 
|/s/ David E. Roberts |  | /s/ Todd H. Takeyasu           |  | 
|                     |  |                               
|David E. Roberts     |  | Todd H. Takeyasu               |  | 
|President & CEO      |  | Executive Vice President & CFO |  | 
|                     |  |                               
|March 6, 2014        |  |                                |  | 



2013 ANNUAL FINANCIAL
STATEMENTS 1



---

INDEPENDENT AUDITORS REPORT OF REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Shareholders of Penn West Petroleum Ltd.

We have audited the accompanying consolidated financial statements of Penn West Petroleum Ltd., which comprise the consolidated balance sheets as at
December 31, 2013 and December 31, 2012, the consolidated statements of income (loss), changes in shareholders equity and cash flows for the years then ended, and notes, comprising a summary of significant accounting policies and
other explanatory information.

Managements Responsibility for the Consolidated Financial Statements

Management is responsible for the preparation and fair presentation of these consolidated financial statements in accordance with International Financial
Reporting Standards as issued by the International Accounting Standards Board, and for such internal control as management determines is necessary to enable the preparation of consolidated financial statements that are free from material
misstatement, whether due to fraud or error.

Auditors Responsibility

Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We conducted our audits in accordance with Canadian
generally accepted auditing standards and the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we comply with ethical requirements and plan and perform the audit to obtain reasonable assurance
about whether the consolidated financial statements are free from material misstatement.

An audit involves performing procedures to obtain audit evidence
about the amounts and disclosures in the consolidated financial statements. The procedures selected depend on our judgment, including the assessment of the risks of material misstatement of the consolidated financial statements, whether due to fraud
or error. In making those risk assessments, we consider internal control relevant to the entitys preparation and fair presentation of the consolidated financial statements in order to design audit procedures that are appropriate in the
circumstances. An audit also includes evaluating the appropriateness of accounting policies used and the reasonableness of accounting estimates made by management, as well as evaluating the overall presentation of the consolidated financial
statements.

We believe that the audit evidence we have obtained in our audits is sufficient and appropriate to provide a basis for our audit opinion.

Opinion

In our opinion, the consolidated financial
statements present fairly, in all material respects, the consolidated financial position of Penn West Petroleum Ltd. as at December 31, 2013 and December 31, 2012, and its consolidated financial performance and its consolidated cash flows
for the years then ended in accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board.

Other Matters

We also have audited, in accordance with
the standards of the Public Company Accounting Oversight Board (United States), Penn West Petroleum Ltd.s internal control over financial reporting as of December 31, 2013, based on the criteria established in Internal Control 
Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated March 6, 2014 expressed an unmodified (unqualified) opinion on the effectiveness of Penn West Petroleum
Ltd.s internal control over financial reporting.

/s/ KPMG LLP

KPMG LLP

Chartered Accountants

Calgary, Canada

March 6, 2014



2013 ANNUAL FINANCIAL
STATEMENTS 2



---

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and Board of Directors of Penn West Petroleum Ltd.

We have audited Penn West Petroleum Ltd.s internal control over financial reporting as of December 31, 2013, based on criteria established in
Internal Control  Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Companys management is responsible for maintaining effective internal control over financial
reporting and for its assessment of the effectiveness of internal control over financial reporting, included in Managements Annual Report on Internal Control over Financial Reporting in the Companys annual report on Form 40-F for the
year ended December 31, 2013. Our responsibility is to express an opinion on the Companys internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial
reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we
considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A companys internal control over
financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
A companys internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the
assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of
the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the
companys assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial
reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance
with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over
financial reporting as of December 31, 2013, based on criteria established in Internal Control  Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

We also have audited, in accordance with Canadian generally accepted auditing standards and the standards of the Public Company Accounting Oversight Board
(United States), the consolidated balance sheets as at December 31, 2013 and December 31, 2012, the consolidated statements of income (loss), changes in shareholders equity and cash flows for the years then ended, and our report
dated March 6, 2014 expressed an unmodified (unqualified) opinion on those consolidated financial statements.

/s/ KPMG LLP

KPMG LLP

Chartered Accountants

Calgary, Canada

March 6, 2014



2013 ANNUAL FINANCIAL
STATEMENTS 3



---

Penn West Petroleum Ltd.

Consolidated Balance Sheets



|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|------------------------------------------ |  | ---- | -- |  | ----------------- | - | ------ | ----------------- |  | - | ------ | -
|(CAD millions)                             |  | Note |    |  | December 31, 2013 |   |        | December 31, 2012 | 
|Assets                                     |  |      |    |  |                   |   |        |                   |  |   |        |  
|Current                                    |  |      |    |  |                   |   |        |                   |  |   |        |  
|Accounts receivable                        |  |      | 4  |  |                   | $ | 263    |                   |  | $ | 364    |  
|Other                                      |  |      | 4  |  |                   |   | 57     |                   |  |   | 79     |  
|Deferred funding assets                    |  |      | 5  |  |                   |   | 139    |                   |  |   | 187    |  
|Risk management                            |  |      | 11 |  |                   |   | 2      |                   |  |   | 76     |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|                                           |  |      |    |  |                   |   | 461    |                   |  |   | 706    |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|Non-current                                |  |      |    |  |                   |   |        |                   |  |   |        |  
|Deferred funding assets                    |  |      | 5  |  |                   |   | 184    |                   |  |   | 238    |  
|Exploration and evaluation assets          |  |      | 6  |  |                   |   | 645    |                   |  |   | 609    |  
|Property, plant and equipment              |  |      | 7  |  |                   |   | 9,392  |                   |  |   | 10,892 |  
|Goodwill                                   |  |      | 8  |  |                   |   | 1,912  |                   |  |   | 1,966  |  
|Risk management                            |  |      | 11 |  |                   |   | 50     |                   |  |   | 26     |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|                                           |  |      |    |  |                   |   | 12,183 |                   |  |   | 13,731 |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|Total assets                               |  |      |    |  |                   | $ | 12,644 |                   |  | $ | 14,437 |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|Liabilities and Shareholders Equity       |  |      |    |  |                   |   |        |                   |  |   |        |  
|Current                                    |  |      |    |  |                   |   |        |                   |  |   |        |  
|Accounts payable and accrued liabilities   |  |      | 4  |  |                   | $ | 654    |                   |  | $ | 764    |  
|Dividends payable                          |  |      | 15 |  |                   |   | 68     |                   |  |   | 129    |  
|Current portion of long-term debt          |  |      | 9  |  |                   |   | 64     |                   |  |   | 5      |  
|Risk management                            |  |      | 11 |  |                   |   | 24     |                   |  |   | 9      |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|                                           |  |      |    |  |                   |   | 810    |                   |  |   | 907    |  
|Non-current                                |  |      |    |  |                   |   |        |                   |  |   |        |  
|Long-term debt                             |  |      | 9  |  |                   |   | 2,394  |                   |  |   | 2,685  |  
|Decommissioning liability                  |  |      | 10 |  |                   |   | 603    |                   |  |   | 635    |  
|Risk management                            |  |      | 11 |  |                   |   | 16     |                   |  |   | 35     |  
|Deferred tax liability                     |  |      | 12 |  |                   |   | 1,102  |                   |  |   | 1,350  |  
|Other non-current liabilities              |  |      | 14 |  |                   |   | 9      |                   |  |   | 5      |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|                                           |  |      |    |  |                   |   | 4,934  |                   |  |   | 5,617  |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|Shareholders equity                       |  |      |    |  |                   |   |        |                   |  |   |        |  
|Shareholders capital                      |  |      | 13 |  |                   |   | 9,124  |                   |  |   | 8,985  |  
|Other reserves                             |  |      | 13 |  |                   |   | 80     |                   |  |   | 97     |  
|Deficit                                    |  |      |    |  |                   |   | (1,494 | )                 |  |   | (262   | )
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|                                           |  |      |    |  |                   |   | 7,710  |                   |  |   | 8,820  |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  
|Total liabilities and shareholders equity |  |      |    |  |                   | $ | 12,644 |                   |  | $ | 14,437 |  
|                                           |  |      |    |  |                   |   |        |                   |  |   |        |  

Subsequent events (Notes 11, 15 and 22)

Commitments and contingencies (Note 19)

See accompanying notes
to the consolidated financial statements.



|                                                                          |  |                    |  | 
|------------------------------------------------------------------------- |  | ------------------ |  | 
|Approved on behalf of the Board of Directors of Penn West Petroleum Ltd.:
|                                                                          |  |                   
|/s/ Richard L. George                                                     |  | /s/ James C. Smith |  | 
|                                                                          |  |                   
|Richard L. George                                                         |  | James C. Smith     |  | 
|Chairman                                                                  |  | Director           |  | 



2013 ANNUAL FINANCIAL
STATEMENTS 4



---

Penn West Petroleum Ltd.

Consolidated Statements of Income (Loss)



|                                               |  |      |    |  |                        |   |        |      |  |   |       |  
|---------------------------------------------- |  | ---- | -- |  | ---------------------- | - | ------ | ---- |  | - | ----- | -
|                                               |  |      |    |  | Year ended December 31 |  
|(CAD millions, except per share amounts)       |  | Note |    |  | 2013                   |   |        | 2012 | 
|Oil and natural gas sales                      |  |      |    |  |                        | $ | 2,827  |      |  | $ | 3,235 |  
|Royalties                                      |  |      |    |  |                        |   | (507   | )    |  |   | (595  | )
|                                               |  |      |    |  |                        |   |        |      |  |   |       |  
|                                               |  |      |    |  |                        |   | 2,320  |      |  |   | 2,640 |  
|Risk management gain (loss)                    |  |      |    |  |                        |   |        |      |  |   |       |  
|Realized                                       |  |      |    |  |                        |   | 8      |      |  |   | 48    |  
|Unrealized                                     |  |      | 11 |  |                        |   | (94    | )    |  |   | 156   |  
|                                               |  |      |    |  |                        |   |        |      |  |   |       |  
|                                               |  |      |    |  |                        |   | 2,234  |      |  |   | 2,844 |  
|                                               |  |      |    |  |                        |   |        |      |  |   |       |  
|Expenses                                       |  |      |    |  |                        |   |        |      |  |   |       |  
|Operating                                      |  |      |    |  |                        |   | 853    |      |  |   | 1,019 |  
|Transportation                                 |  |      |    |  |                        |   | 29     |      |  |   | 29    |  
|General and administrative                     |  |      |    |  |                        |   | 160    |      |  |   | 172   |  
|Restructuring                                  |  |      |    |  |                        |   | 38     |      |  |   | 13    |  
|Share-based compensation                       |  |      | 14 |  |                        |   | 32     |      |  |   | (10   | )
|Depletion, depreciation and impairment         |  |      | 7  |  |                        |   | 1,792  |      |  |   | 1,525 |  
|Impairment of goodwill                         |  |      | 8  |  |                        |   | 48     |      |  |   |      |  
|Loss (gain) on dispositions                    |  |      |    |  |                        |   | 14     |      |  |   | (359  | )
|Exploration and evaluation                     |  |      | 6  |  |                        |   | 44     |      |  |   | 17    |  
|Unrealized risk management loss (gain)         |  |      | 11 |  |                        |   | (48    | )    |  |   | 5     |  
|Unrealized foreign exchange loss (gain)        |  |      |    |  |                        |   | 126    |      |  |   | (32   | )
|Financing                                      |  |      | 9  |  |                        |   | 184    |      |  |   | 199   |  
|Accretion                                      |  |      | 10 |  |                        |   | 43     |      |  |   | 54    |  
|                                               |  |      |    |  |                        |   |        |      |  |   |       |  
|                                               |  |      |    |  |                        |   | 3,315  |      |  |   | 2,632 |  
|                                               |  |      |    |  |                        |   |        |      |  |   |       |  
|Income (loss) before taxes                     |  |      |    |  |                        |   | (1,081 | )    |  |   | 212   |  
|                                               |  |      |    |  |                        |   |        |      |  |   |       |  
|                                               |  |      |   
|Deferred tax expense (recovery)                |  |      | 12 |  |                        |   | (243   | )    |  |   | 63    |  
|                                               |  |      |    |  |                        |   |        |      |  |   |       |  
|Net and comprehensive income (loss)            |  |      |    |  |                        | $ | (838   | )    |  | $ | 149   |  
|                                               |  |      |    |  |                        |   |        |      |  |   |       |  
|Net income (loss) per share                    |  |      |    |  |                        |   |        |      |  |   |       |  
|Basic                                          |  |      | 16 |  |                        | $ | (1.72  | )    |  | $ | 0.31  |  
|Diluted                                        |  |      | 16 |  |                        | $ | (1.72  | )    |  | $ | 0.31  |  
|Weighted average shares outstanding (millions) |  |      |    |  |                        |   |        |      |  |   |       |  
|Basic                                          |  |      | 16 |  |                        |   | 485.8  |      |  |   | 475.6 |  
|Diluted                                        |  |      | 16 |  |                        |   | 485.8  |      |  |   | 475.8 |  

See accompanying notes to the consolidated financial statements.



2013 ANNUAL FINANCIAL
STATEMENTS 5



---

Penn West Petroleum Ltd.

Consolidated Statements of Cash Flows



|                                          |  |      |    |  |                        |   |       |      |  |   |        |  
|----------------------------------------- |  | ---- | -- |  | ---------------------- | - | ----- | ---- |  | - | ------ | -
|                                          |  |      |    |  | Year ended December 31 |  
|(CAD millions)                            |  | Note |    |  | 2013                   |   |       | 2012 | 
|Operating activities                      |  |      |    |  |                        |   |       |      |  |   |        |  
|Net income (loss)                         |  |      |    |  |                        | $ | (838  | )    |  | $ | 149    |  
|Depletion, depreciation and impairment    |  |      |    |  |                        |   | 1,792 |      |  |   | 1,525  |  
|Impairment of goodwill                    |  |      |    |  |                        |   | 48    |      |  |   |       |  
|Loss (gain) on dispositions               |  |      |    |  |                        |   | 14    |      |  |   | (359   | )
|Exploration and evaluation                |  |      |    |  |                        |   | 44    |      |  |   | 17     |  
|Accretion                                 |  |      |    |  |                        |   | 43    |      |  |   | 54     |  
|Deferred tax expense (recovery)           |  |      |    |  |                        |   | (236  | )    |  |   | 63     |  
|Share-based compensation                  |  |      |    |  |                        |   | 15    |      |  |   | (18    | )
|Unrealized risk management loss (gain)    |  |      |    |  |                        |   | 46    |      |  |   | (151   | )
|Unrealized foreign exchange loss (gain)   |  |      |    |  |                        |   | 126   |      |  |   | (32    | )
|Decommissioning expenditures              |  |      | 10 |  |                        |   | (66   | )    |  |   | (92    | )
|Change in non-cash working capital        |  |      | 17 |  |                        |   | 51    |      |  |   | 37     |  
|                                          |  |      |    |  |                        |   |       |      |  |   |        |  
|                                          |  |      |    |  |                        |   | 1,039 |      |  |   | 1,193  |  
|                                          |  |      |    |  |                        |   |       |      |  |   |        |  
|Investing activities                      |  |      |    |  |                        |   |       |      |  |   |        |  
|Capital expenditures                      |  |      |    |  |                        |   | (816  | )    |  |   | (1,752 | )
|Property dispositions (acquisitions), net |  |      |    |  |                        |   | 525   |      |  |   | 1,615  |  
|Change in non-cash working capital        |  |      | 17 |  |                        |   | (44   | )    |  |   | (168   | )
|                                          |  |      |    |  |                        |   |       |      |  |   |        |  
|                                          |  |      |    |  |                        |   | (335  | )    |  |   | (305   | )
|                                          |  |      |    |  |                        |   |       |      |  |   |        |  
|Financing activities                      |  |      |    |  |                        |   |       |      |  |   |        |  
|Decrease in long-term debt                |  |      |    |  |                        |   | (356  | )    |  |   | (496   | )
|Issue of equity                           |  |      |    |  |                        |   | 12    |      |  |   | 3      |  
|Dividends paid                            |  |      |    |  |                        |   | (360  | )    |  |   | (395   | )
|                                          |  |      |    |  |                        |   |       |      |  |   |        |  
|                                          |  |      |    |  |                        |   | (704  | )    |  |   | (888   | )
|                                          |  |      |    |  |                        |   |       |      |  |   |        |  
|Change in cash                            |  |      |    |  |                        |   |      |      |  |   |       |  
|Cash, beginning of year                   |  |      |    |  |                        |   |      |      |  |   |       |  
|                                          |  |      |    |  |                        |   |       |      |  |   |        |  
|Cash, end of year                         |  |      |    |  |                        | $ |      |      |  | $ |       |  
|                                          |  |      |    |  |                        |   |       |      |  |   |        |  

See accompanying notes to the consolidated financial statements.



2013 ANNUAL FINANCIAL
STATEMENTS 6



---

Penn West Petroleum Ltd.

Statements of Changes in Shareholders Equity



|                                               |      |  |    |                      |  |   |               |  |  |         |     |   |       |   |        |   |  |   |       |  
|---------------------------------------------- | ---- |  | -- | -------------------- |  | - | ------------- |  |  | ------- | --- | - | ----- | - | ------ | - |  | - | ----- | -
|(CAD millions)                                 |      |  |   
|                                               | Note |  |    | ShareholdersCapital |  |   | OtherReserves |  |  | Deficit |     |   | Total |  
|Balance at January 1, 2013                     |      |  |    |                      |  | $ | 8,985         |  |  | $       | 97  |   |       | $ | (262   | ) |  | $ | 8,820 |  
|Net and comprehensive loss                     |      |  |    |                      |  |   |              |  |  |         |    |   |       |   | (838   | ) |  |   | (838  | )
|Share-based compensation                       |      |  | 14 |                      |  |   |              |  |  |         | 15  |   |       |   |       |   |  |   | 15    |  
|Issued on exercise of options and share rights |      |  | 13 |                      |  |   | 44            |  |  |         | (32 | ) |       |   |       |   |  |   | 12    |  
|Issued to dividend reinvestment plan           |      |  | 13 |                      |  |   | 95            |  |  |         |    |   |       |   |       |   |  |   | 95    |  
|Dividends declared                             |      |  |    |                      |  |   |              |  |  |         |    |   |       |   | (394   | ) |  |   | (394  | )
|                                               |      |  |    |                      |  |   |               |  |  |         |     |   |       |   |        |   |  |   |       |  
|Balance at December 31, 2013                   |      |  |    |                      |  | $ | 9,124         |  |  | $       | 80  |   |       | $ | (1,494 | ) |  | $ | 7,710 |  
|                                               |      |  |    |                      |  |   |               |  |  |         |     |   |       |   |        |   |  |   |       |  



|                                               |      |  |    |                      |  |   |               |  |  |                           |     |   |       |   |      |   |  |   |       |  
|---------------------------------------------- | ---- |  | -- | -------------------- |  | - | ------------- |  |  | ------------------------- | --- | - | ----- | - | ---- | - |  | - | ----- | -
|(CAD millions)                                 |      |  |   
|                                               | Note |  |    | ShareholdersCapital |  |   | OtherReserves |  |  | RetainedEarnings(Deficit) |     |   | Total |  
|Balance at January 1, 2012                     |      |  |    |                      |  | $ | 8,840         |  |  | $                         | 95  |   |       | $ | 103  |   |  | $ | 9,038 |  
|Net and comprehensive income                   |      |  |    |                      |  |   |              |  |  |                           |    |   |       |   | 149  |   |  |   | 149   |  
|Share-based compensation                       |      |  | 14 |                      |  |   |              |  |  |                           | 27  |   |       |   |     |   |  |   | 27    |  
|Issued on exercise of options and share rights |      |  | 13 |                      |  |   | 28            |  |  |                           | (25 | ) |       |   |     |   |  |   | 3     |  
|Issued to dividend reinvestment plan           |      |  | 13 |                      |  |   | 117           |  |  |                           |    |   |       |   |     |   |  |   | 117   |  
|Dividends declared                             |      |  |    |                      |  |   |              |  |  |                           |    |   |       |   | (514 | ) |  |   | (514  | )
|                                               |      |  |    |                      |  |   |               |  |  |                           |     |   |       |   |      |   |  |   |       |  
|Balance at December 31, 2012                   |      |  |    |                      |  | $ | 8,985         |  |  | $                         | 97  |   |       | $ | (262 | ) |  | $ | 8,820 |  
|                                               |      |  |    |                      |  |   |               |  |  |                           |     |   |       |   |      |   |  |   |       |  

See accompanying notes to the consolidated financial statements.



2013 ANNUAL FINANCIAL
STATEMENTS 7



---

Notes to the Consolidated Financial Statements

(All tabular amounts are in CAD millions except numbers of common shares, per share amounts,

percentages and various figures in Note 11)

1. Structure of Penn West

Penn West Petroleum Ltd.
(Penn West or the Company) is a senior exploration and production company and is governed by the laws of the Province of Alberta, Canada. The Company operates in one segment, to explore for, develop and hold interests in oil
and natural gas properties and related production infrastructure in the Western Canada Sedimentary Basin directly and through investments in securities of subsidiaries holding such interests. Penn Wests portfolio of assets is managed at an
enterprise level, rather than by separate operating segments or business units. The Company assesses its financial performance at the enterprise level and resource allocation decisions are made on a project basis across Penn Wests portfolio of
assets, without regard to the geographic location of projects.Penn West owns the petroleum and natural gas assets or 100 percent of the equity, directly or indirectly, of the entities that carry on the remainder of the oil and natural gas
business of Penn West, except for an unincorporated joint arrangement (the Peace River Oil Partnership) in which Penn Wests wholly owned subsidiaries hold a 55 percent interest.

Penn West operates under the trade names of Penn West and Penn West Exploration.

2. Basis of presentation and statement of compliance

a) Statement of Compliance

These annual consolidated
financial statements are prepared in compliance with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board.

The annual consolidated financial statements have been prepared on a historical cost basis, except risk management assets and liabilities which are recorded
at fair value as discussed in Note 11.

The annual consolidated financial statements were approved for issuance by the Board of Directors on March 6,
2014.

b) Basis of Presentation

The annual
consolidated financial statements include the accounts of Penn West, its wholly owned subsidiaries and its proportionate interest in partnerships. Results from acquired properties are included in Penn Wests reported results subsequent to the
closing date and results from properties sold are included until the closing date.

All intercompany balances, transactions, income and expenses are
eliminated on consolidation.



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3. Significant accounting policies

a) Critical accounting judgments and key estimates

The
preparation of the consolidated financial statements in conformity with IFRS requires management to make estimates and assumptions that affect the recorded amounts of assets and liabilities, disclosure of any contingent assets and liabilities at the
date of the financial statements and the reported amounts of revenues and expenses for the period. These and other estimates are subject to measurement uncertainty and the effect on the consolidated financial statements of changes in these estimates
could be material.

Management also makes judgments while applying accounting policies that could affect amounts recorded in its consolidated financial
statements. Significant judgments include the identification of cash generating units (CGUs) for impairment testing purposes, determining whether a CGU has an impairment indicator and determining whether exploration and evaluation
(E&E) assets are technically feasible and commercially viable.

The following are the estimates that management has made in applying the
Companys accounting policies that have the most significant effect on the amounts recognized in the consolidated financial statements.

i)
Reserve estimates

Commercial petroleum reserves are determined based on estimates of petroleum-in-place, recovery factors and future oil and natural
gas prices and costs. Penn West engages an independent qualified reserve evaluator to audit or evaluate all of the Companys oil and natural gas reserves at each year-end.

Reserve adjustments are made annually based on actual oil and natural gas volumes produced, the results from capital programs, revisions to previous
estimates, new discoveries and acquisitions and dispositions made during the year and the effect of changes in forecast future crude oil and natural gas prices. There are a number of estimates and assumptions that affect the process of evaluating
reserves.

Proved reserves are the estimated quantities of crude oil, natural gas and natural gas liquids determined to be economically recoverable under
existing economic and operating conditions with a high degree of certainty (at least 90 percent) those quantities will be exceeded. Proved plus probable reserves are the estimated quantities of crude oil, natural gas and natural gas liquids
determined to be economically recoverable under existing economic and operating conditions with a 50 percent certainty those quantities will or will not be exceeded. Penn West reports production and reserve quantities in accordance with Canadian
practices and specifically in accordance with Standards of Disclosure for Oil and Gas Activities (NI 51-101).

The estimate of
proved plus probable reserves is an essential part of the depletion calculation, the impairment test and hence the recorded amount of oil and gas assets.

Penn West cautions users of this information that the process of estimating crude oil and natural gas reserves is subject to a level of uncertainty. The
reserves are based on current and forecast economic and operating conditions; therefore, changes can be made to future assessments as a result of a number of factors, which can include commodity prices, new technology, changing economic conditions,
future reservoir performance and forecast development activity.

ii) Recoverability of asset carrying values

Penn West assesses its property, plant and equipment (PP&E) and goodwill for impairment by comparing the carrying amount to the recoverable
amount of the underlying assets. The determination of the recoverable amount involves estimating the higher of an assets fair value less costs to sell or its value-in-use, the latter of which is based on its discounted future cash flows using
an applicable discount rate. Future cash flows are calculated based on estimates of future commodity prices and inflation and are discounted based on managements current assessment of market conditions.



2013 ANNUAL FINANCIAL
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iii) Recoverability of exploration and evaluation assets

E&E assets are assessed for impairment by comparing the carrying amount to the recoverable amount. The assessment of the recoverable amount involves a
number of assumptions, including the timing/likelihood/amount of commercial production, further resource assessment plans, and future revenue/costs expected from the asset, if any.

iv) Decommissioning liability

Penn West recognizes a
provision for future abandonment activities in the consolidated financial statements at the net present value of the estimated future expenditures required to settle the estimated obligation at the balance sheet date. The measurement of the
decommissioning liability involves the use of estimates and assumptions including the discount rate, the amount and expected timing of future abandonment costs and the inflation rate related thereto. The estimates were made by management and
external consultants considering current costs, technology and enacted legislation.

v) Fair value calculation on share-based payments

The fair value of share-based payments is calculated using a Black-Scholes or a Binomial Lattice option-pricing model, depending on the characteristics of the
share-based payment. There are a number of estimates used in the calculation such as the expected future forfeiture rate, the expected period the share-based compensation is outstanding and the future price volatility of the underlying security all
of which can vary from expectations. The factors applied in the calculation are managements estimates based on historical information and future forecasts.

vi) Fair value of risk management contracts

Penn West
records risk management contracts at fair value with changes in fair value recognized in income. The fair values are determined using external counterparty information which is compared to observable market data.

vii) Taxation

The calculation of deferred income taxes
is based on a number of assumptions including estimating the future periods in which temporary differences and other tax credits will reverse and the general assumption that substantively enacted future tax rates at the balance sheet date will be in
effect when differences reverse.

b) Business combinations

Penn West uses the acquisition method to account for business combinations. The net identifiable assets and liabilities acquired in transactions are generally
measured at their fair value on the acquisition date. The acquisition date is the closing date of the business combination. Acquisition costs incurred by Penn West to complete a business combination are expensed in the period incurred except for
costs related to the issue of any debt or equity securities, which are recognized based on the nature of the related financing instrument.

Revisions may
be made to the initial recognized amounts determined during the measurement period, which shall not exceed one year after the close date of the acquisition.

c) Goodwill

Penn West recognizes goodwill on a business
combination when the total purchase consideration exceeds the net identifiable assets acquired and liabilities assumed of the acquired entity. Following initial recognition, goodwill is recognized at cost less any accumulated impairment losses.



2013 ANNUAL FINANCIAL
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Goodwill is not amortized and the carrying amount is assessed for impairment on an annual basis on
December 31, or more frequently if circumstances arise that indicate impairment may have occurred. To test for impairment, the carrying amount of the CGU including goodwill, if any, associated with the CGU, is compared to the recoverable amount
of the CGU or group of CGUs to which the goodwill is associated. If the recoverable amount of the CGU exceeds the carrying value, then no impairment exists. If the carrying value of the CGU exceeds the recoverable amount of the CGU, then an
impairment loss shall be recorded. The determination of the recoverable amount involves estimating the higher of an assets fair value less costs to sell and its value-in-use. Goodwill impairment losses are not reversed in subsequent periods.

d) Revenue

Penn West generally recognizes oil and
natural gas revenue when title passes from Penn West to the purchaser or, in the case of services, as contracted services are performed.

Revenue is
measured at the fair value of the consideration received or receivable. Revenue from the sale of crude oil, natural gas and natural gas liquids (prior to deduction of transportation costs) is recognized when all the following conditions have been
satisfied:



| |  |  | The significant risks and rewards of ownership of the goods have been transferred to the buyer;
| | - |  | -----------------------------------------------------------------------------------------------



| |  |  | There is no continuing managerial involvement to the degree usually associated with ownership or effective control over the goods sold;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The amount of revenue can be reliably measured;
| | - |  | -----------------------------------------------



| |  |  | It is probable that the economic benefits associated with the transaction will flow to Penn West; and
| | - |  | -----------------------------------------------------------------------------------------------------



| |  |  | The costs incurred or to be incurred in respect of the transaction can be reliably measured.
| | - |  | --------------------------------------------------------------------------------------------

e) Joint
arrangements

The consolidated financial statements include Penn Wests proportionate interest of jointly controlled assets and liabilities and
its proportionate interest of the revenue, royalties and operating costs. A significant portion of Penn Wests exploration and development activities are conducted jointly with others and involve jointly controlled assets. Under such
arrangements, Penn West has the exclusive rights to its proportionate interest in the assets and the economic benefits generated from its share of the assets. Income from the sale or use of Penn Wests interest in jointly controlled assets and
its share of expenses is recognized when it is probable that the economic benefits associated with the transactions will flow to/from Penn West and the amounts can be reliably measured.

The Peace River Oil Partnership is a joint operation and Penn West records its 55 percent interest of revenues, expenses, assets and liabilities.

f) Transportation expense

Transportation costs are paid
by Penn West for the shipping of natural gas, crude oil and natural gas liquids from the wellhead to the point of title transfer to buyers. These costs are recognized as services are received.

g) Foreign currency translation

Penn West and each of
its subsidiaries use the Canadian dollar as their functional currency. Monetary items, such as accounts receivable and long-term debt, are translated to Canadian dollars at the rate of exchange in effect at the balance sheet date. Non-monetary
items, such as PP&E, are translated to Canadian dollars at the rate of exchange in effect when the associated transactions occurred. Revenues and expenses denominated in foreign currencies are translated at the exchange rate on the date of the
transaction. Foreign exchange gains or losses on translation are included in income.



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h) E&E

i) Measurement and recognition

E&E assets are
initially measured at cost. Items included in E&E primarily relate to exploratory drilling, geological & geophysical activities, acquisition of mineral rights and technical studies. These expenditures are classified as E&E assets
until the technical feasibility and commercial viability of extracting oil and natural gas from the assets has been determined.

ii) Transfer to
PP&E

E&E costs are transferred to PP&E when proved reserves have been assigned to the asset. If proved reserves will not be established
through the completion of E&E activities and there are no plans for development activity in a field, based on their recoverable amount, the E&E assets are charged to income as E&E expense. Any revenue, royalties, operating expenses and
depletion prior to transfer are recognized in the statement of income (loss).

iii) Pre-license costs

Pre-license expenditures incurred before Penn West has obtained the legal rights to explore for hydrocarbons in a specific area are expensed.

iv) Impairment

E&E assets are tested for impairment
at the operating segment level when facts or circumstances indicate that a possible impairment may exist and prior to reclassification to PP&E. E&E impairment losses may be reversed in subsequent periods.

i) PP&E

i) Measurement and recognition

Oil & Gas properties are included in PP&E at cost, less accumulated depletion and depreciation and any impairment losses. The cost of PP&E
includes costs incurred initially to acquire or construct the item and betterment costs.

Capital expenditures are recognized as PP&E when it is
probable that future economic benefits associated with the investment will flow to Penn West and the cost can be reliably measured. PP&E includes capital expenditures incurred in the development phases, acquisition and disposition of PP&E,
costs transferred from E&E and additions to the decommissioning liability.

ii) Depletion and Depreciation

Except for components with a useful life shorter than the reserve life of the associated property, resource properties are depleted using the
unit-of-production method based on production volumes before royalties in relation to total proved plus probable reserves. Natural gas volumes are converted to equivalent oil volumes based upon the relative energy content of six thousand cubic feet
of natural gas to one barrel of oil. In determining its depletion base, Penn West includes estimated future costs to develop proved plus probable reserves and excludes estimated equipment salvage values. Changes to reserve estimates are included in
the depletion calculation prospectively.

Components of PP&E that are not depleted using the unit-of-production method are depreciated on a
straight-line basis over their useful life. The turnaround component has an estimated useful life of three to five years and the corporate asset component has an estimated useful life of 10 years.



2013 ANNUAL FINANCIAL
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iii) Derecognition

The carrying amount of an item of PP&E is derecognized when no future economic benefits are expected from its use or upon sale to a third party. The gain
or loss arising from derecognition is included in income and is measured as the difference between the net proceeds, if any, and the carrying amount of the asset.

iv) Major maintenance and repairs

Ongoing costs to
maintain properties are generally expensed as incurred. These costs include the cost of labour, consumables and small parts. The costs of material replacement parts, turnarounds and major inspections are capitalized provided it is probable that
future economic benefits in excess of cost will be realized and such benefits are expected to extend beyond the current operating period. The carrying amount of a replaced part is derecognized in accordance with Penn Wests derecognition
policies.

v) Impairment of oil and natural gas properties

Penn West reviews oil and gas properties for circumstances that indicate its assets may be impaired at the end of each reporting period. These indicators can
be internal (i.e. reserve changes) or external (i.e. market conditions) in nature. If an indication of impairment exists, Penn West completes an impairment test, which compares the estimated recoverable amount to the carrying value. The estimated
recoverable amount is defined under IAS 36 (Impairment of Assets) as the higher of an assets or CGUs fair value less costs to sell and its value-in-use.

Where the recoverable amount is less than the carrying amount, the CGU is considered to be impaired. Impairment losses identified for a CGU are allocated on a
pro rata basis to the asset categories within the CGU. The impairment loss is recognized as an expense in income.

Value-in-use is computed as the present
value of future cash flows expected to be derived from production. Present values are calculated using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the asset. Under the fair
value less cost to sell method the recoverable amount is determined using various factors, which can include external factors such as observable market conditions and comparable transactions and internal factors such as discounted cash flows related
to reserve and resource studies and future development plans.

Impairment losses related to PP&E can be reversed in future periods if the estimated
recoverable amount of the asset exceeds the carrying value. The impairment recovery is limited to a maximum of the estimated depleted historical cost if the impairment had not been recognized. The reversal of the impairment loss is recognized in
depletion, depreciation and impairment.

vi) Other Property, Plant and Equipment

Penn Wests corporate assets include computer hardware and software, office furniture, buildings and leasehold improvements and are depreciated on a
straight-line basis over their useful lives. Corporate assets are tested for impairment separately from oil and gas assets.



2013 ANNUAL FINANCIAL
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j) Share-based payments

The fair value of options granted under the Stock Option Plan (the Option Plan), and the Restricted Options and Share rights governed under the
Common Share Rights Incentive Plan (CSRIP) are recognized as compensation expense with a corresponding increase to other reserves in shareholders equity over the term of the options based on a graded vesting schedule. Penn West
measures the fair value of options granted under these plans at the grant date using an option-pricing model. The fair value is based on market prices and considers the terms and conditions of the share options granted.

The fair value of awards granted under the Long-Term Retention and Incentive Plan (LTRIP), the Deferred Share Unit Plan (DSU), the
Performance Share Unit Plan (PSU) and Restricted Rights governed by the CSRIP are based on a fair value calculation on each reporting date using the awards outstanding and Penn Wests share price from the Toronto Stock Exchange
(TSX) on each balance sheet date. The fair value of the awards is expensed over the vesting period based on a graded vesting schedule. Subsequent increases and decreases in the underlying share price result in increases and decreases,
respectively, to the accrued obligation until the related instruments are settled.

k) Provisions

i) General

Provisions are recognized based on an estimate
of expenditures required to settle present obligations at the end of the reporting period. The provision is risk adjusted to take into account any uncertainties. When the effect of the time value of money is material, the amount of a provision is
calculated as the present value of the future expenditures required to settle the obligations. The discount rate reflects the current assessment of the time value of money and risks specific to the liability when those risks have not already been
reflected as an adjustment to future cash flows.

ii) Decommissioning liability

The decommissioning liability is the present value of Penn Wests future costs of obligations for property, facility and pipeline abandonment and site
restoration. The liability is recognized on the balance sheet with a corresponding increase to the carrying amount of the related asset. The recorded liability increases over time to its future amount through accretion charges to income. Revisions
to the estimated amount or timing of the obligations are reflected prospectively as increases or decreases to the recorded liability and the related asset. Actual decommissioning expenditures, up to the recorded liability at the time, are charged to
the liability as the costs are incurred. Amounts capitalized to the related assets are amortized to income consistent with the depletion or depreciation of the underlying asset.

l) Leases

A lease is classified as an operating lease if
it does not transfer substantially all of the risks and rewards incidental to ownership of the related asset to the lessee. Operating lease payments are expensed on a straight-line basis over the life of the lease.

m) Share capital

Common shares are classified as equity.
Share issue costs are recorded in shareholders equity, net of applicable taxes. Dividends are paid at the discretion of the Board of Directors and are deducted from retained earnings.

If issued, preferred shares would be classified as equity and could be issued in one or more series.

n) Earnings per share

Earnings per share is calculated
by dividing net income or loss attributable to the shareholders by the weighted average number of common shares outstanding during the period. Penn West computes the dilutive impact of equity instruments other than common shares assuming the
proceeds received from the exercise of in-the-money share options are used to purchase common shares at average market prices.



2013 ANNUAL FINANCIAL
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o) Taxation

Income taxes are based on taxable income in a taxation year. Taxable income normally differs from income reported in the consolidated statement of income as it
excludes items of income or expense that are taxable or deductible in other years or are not taxable or deductible for income tax purposes.

Penn West
uses the liability method of accounting for deferred income taxes. Temporary differences are calculated assuming that the financial assets and liabilities will be settled at their carrying amount. Deferred income taxes are computed on temporary
differences using substantively enacted income tax rates expected to apply when deferred income tax assets and liabilities are realized or settled.

p)
Financial instruments

Financial instruments are measured at fair value and recorded on the balance sheet upon initial recognition of an instrument.
Subsequent measurement and changes in fair value will depend on initial classification, as follows:



| |  |  | Fair value through profit or loss financial assets and liabilities and derivative instruments classified as held for trading or designated as fair value through profit or loss are measured at fair value and subsequent
changes in fair value are recognized in income;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Loans and receivables are non-derivative financial assets with fixed or determinable payments that are not quoted in an active market are initially measured at fair value with subsequent changes at amortized cost;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Available-for-sale financial instruments are measured at fair value with changes in fair value recorded in equity until the instrument or a portion thereof is derecognized or impaired at which time the amounts would be
recognized in income;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Held to maturity financial assets and loans and receivables are initially measured at fair value with subsequent measurement at amortized cost using the effective interest method. The effective interest method
calculates the amortized cost of a financial asset and allocates interest income or expense over the applicable period. The rate used discounts the estimated future cash flows over either the expected life of the financial asset or liability or a
shorter time-frame if it is deemed appropriate; and
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Other financial liabilities are initially measured at fair value with subsequent changes to fair value measured at amortized cost.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------

Penn Wests current classifications are as follows:



| |  |  | Cash and cash equivalents and accounts receivable are designated as loans and receivables;
| | - |  | ------------------------------------------------------------------------------------------



| |  |  | Accounts payable and accrued liabilities, dividends payable and long-term debt are designated as other financial liabilities; and
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------



| |  |  | Risk management contracts are derivative financial instruments measured at fair value through profit or loss.
| | - |  | -------------------------------------------------------------------------------------------------------------

Penn West assesses each financial instrument, except those valued at fair value through profit or loss, for impairment at the reporting date and records the
gain or loss in income during the period.



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q) Embedded derivatives

An embedded derivative is a component of a contract that affects the terms of another factor, for example, rent costs that fluctuate with oil prices. These
hybrid contracts are considered to consist of a host contract plus an embedded derivative. The embedded derivative is separated from the host contract and accounted for as a derivative if the following conditions are met:



| |  |  | The economic characteristics and risks of the embedded derivative are not closely related to the economic characteristics and risks of the host contract;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The embedded item, itself, meets the definition of a derivative; and
| | - |  | --------------------------------------------------------------------



| |  |  | The hybrid contract is not measured at fair value or designated as held for trading.
| | - |  | ------------------------------------------------------------------------------------

At December 31,
2013 and 2012, Penn West had no material embedded derivatives.

r) Compound instruments

Components of compound instruments are classified separately as financial liabilities and equity in accordance with the substance of the contractual
arrangement. At the issue date, the fair value of the liability component is estimated using the prevailing market interest rate for a similar non-convertible instrument. This amount is recorded as a liability based on amortized cost until the
instrument is converted or the instrument matures. The equity component is determined by deducting the liability component from the total fair value of the compound instrument and is recognized as equity, net of income tax effects, with no
subsequent re-measurement.

At December 31, 2013 and 2012, Penn West had no compound instruments outstanding.

s) Classification of debt or equity

Penn West classifies
financial liabilities and equity instruments in accordance with the substance of the contractual arrangement and the definitions of a financial liability or an equity instrument.

Penn Wests debt instruments currently have requirements to deliver cash at the end of the term thus are classified as liabilities.

t) Enhanced oil recovery

The value of proprietary
injectants is not recognized as revenue until reproduced and sold to third parties. The cost of injectants purchased from third parties for enhanced oil recovery projects is included in PP&E. Injectant costs are depleted over the period of
expected future economic benefit on a unit-of-production basis. Costs associated with the production of proprietary injectants are expensed.

New
accounting policies

During the first quarter of 2013, Penn West adopted the following standards all of which were applied retroactively except for
IFRS 13 and the IAS 36 amendment which were applied prospectively.

IFRS 7 Financial InstrumentsDisclosures was amended, effective
January 1, 2013, outlining new disclosure requirements when offsetting financial assets and liabilities. Penn West adopted these amendments with the additional disclosure requirements outlined in Note 11.

IFRS 10 Consolidated Financial Statements outlines a new methodology to determine whether to consolidate an investee. This new standard became
effective on January 1, 2013. There was no impact to Penn West on adoption of this standard.



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IFRS 11 Joint Arrangements outlines the accounting treatment for joint arrangements, notably joint
operations which will follow the proportionate consolidation method and joint ventures which will follow the equity accounting method. This new standard became effective on January 1, 2013 and applies to the Companys interest in the Peace
River Oil Partnership. Penn West has determined that its interest in the Peace River Oil Partnership continues to be a joint operation under the new standard; thus continues to record its proportionate interest in the assets, liabilities, revenue,
and expenses in the Partnership.

IFRS 12 Disclosure of Interests in Other Entities outlines disclosure requirements for interests in
subsidiaries, joint arrangements, associates and unconsolidated structured entities. These disclosure requirements became effective on January 1, 2013. Penn West updated its disclosures as required.

IFRS 13 Fair Value Measurement defines fair value, provides guidance on measuring fair value and outlines disclosure requirements for fair value
measurement. This standard applies when another IFRS standard requires fair value measurements or disclosures, with some exceptions including IFRS 2 Share based payments and IAS 17 Leases. This new standard became effective
on January 1, 2013. There was no impact to Penn West on adoption of this standard.

IAS 36 Impairment of assets was amended to reverse
the unintended requirement in IFRS 13 Fair Value Measurement to disclose the recoverable amount of every cash-generating unit to which significant goodwill or indefinite-lived intangible assets have been allocated. Under the amendments,
recoverable amount is required to be disclosed only when an impairment loss has been recognized or reversed. The Company has early adopted these amendments with the disclosure requirements outlined in Note 8.

Future Accounting Pronouncements

In May 2011, the
International Accounting Standards Board issued IFRS 9 Financial Instruments which outlines a new methodology for the recognition and measurement requirements for financial instruments. This new standard will eventually replace IAS 39
Financial Instruments: Recognition and Measurement. This standard is still in development and no effective date has been set; therefore, Penn West cannot assess the impact of this standard at this time.

The International Accounting Standards Board issued amendments to IAS 32, Financial Instruments: Presentation, which clarify the requirements for
offsetting financial assets and liabilities. The amendments clarify when an entity has a legally enforceable right to offset and certain other requirements that are necessary to present a net financial asset or liability. The amendments are required
to be applied retrospectively for annual periods beginning on or after January 1, 2014. Penn West is currently assessing the impact of this standard at this time.

In May 2013, IFRIC 21 Levies was issued and provides guidance on accounting for levies in accordance with the requirements of IAS 37,
Provisions, Contingent Liabilities and Contingent Assets.The interpretation defines a levy as an outflow from an entity imposed by a government in accordance with legislation. It also notes that levies do not arise from executory
contracts or other contractual arrangements. The interpretation also confirms that an entity recognizes a liability for a levy only when the triggering event specified in the legislation occurs. This IFRIC is effective for annual periods commencing
on or after January 1, 2014 and is to be applied retrospectively. The Company intends to adopt IFRIC 21 in its financial statements for the annual period beginning January 1, 2014. The extent of the impact of adoption of the amendments has
not yet been determined.



2013 ANNUAL FINANCIAL
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4. Working capital



|                                                       |  |                   |     |  |      |   |     | 
|------------------------------------------------------ |  | ----------------- | --- |  | ---- | - | --- | 
|                                                       |  | As at December 31 |    
|                                                       |  | 2013              |     |  | 2012 |  
|Components of accounts receivable                      |  |                   |     |  |      |   |     | 
|Trade                                                  |  | $                 | 68  |  |      | $ | 138 | 
|Accruals                                               |  |                   | 195 |  |      |   | 226 | 
|                                                       |  |                   |     |  |      |   |     | 
|                                                       |  | $                 | 263 |  |      | $ | 364 | 
|                                                       |  |                   |     |  |      |   |     | 
|Components of other assets                             |  |                   |     |  |      |   |     | 
|Prepaid expenses                                       |  | $                 | 50  |  |      | $ | 58  | 
|Other                                                  |  |                   | 7   |  |      |   | 21  | 
|                                                       |  |                   |     |  |      |   |     | 
|                                                       |  | $                 | 57  |  |      | $ | 79  | 
|                                                       |  |                   |     |  |      |   |     | 
|Components of accounts payable and accrued liabilities |  |                   |     |  |      |   |     | 
|Accounts payable                                       |  | $                 | 149 |  |      | $ | 225 | 
|Royalty payable                                        |  |                   | 76  |  |      |   | 72  | 
|Capital accrual                                        |  |                   | 186 |  |      |   | 230 | 
|Operating accrual                                      |  |                   | 180 |  |      |   | 172 | 
|Share-based compensation liability                     |  |                   | 12  |  |      |   | 24  | 
|Other                                                  |  |                   | 51  |  |      |   | 41  | 
|                                                       |  |                   |     |  |      |   |     | 
|                                                       |  | $                 | 654 |  |      | $ | 764 | 
|                                                       |  |                   |     |  |      |   |     | 

Accounts receivable

Penn West
continuously monitors credit risk and maintains credit policies to ensure collection risk is limited. Receivables are primarily with customers in the oil and gas industry and are subject to normal industry credit risk. Receivables over 90 days are
classified as past due and are assessed for collectability. If an amount is deemed to be uncollectible, it is expensed through income.

As at
December 31, based on Penn Wests credit assessments, provisions have been made for amounts deemed uncollectible. As at December 31, the following accounts receivable amounts were outstanding.



|     |  |         |     |  |            |   |    |          |  |   |       |  |  |   |     | 
|---- |  | ------- | --- |  | ---------- | - | -- | -------- |  | - | ----- |  |  | - | --- | 
|     |  | Current |     |  | 30-90 days |   |    | 90+ days |  |   | Total | 
|2013 |  | $       | 208 |  |            | $ | 40 |          |  | $ | 15    |  |  | $ | 263 | 
|2012 |  | $       | 307 |  |            | $ | 21 |          |  | $ | 36    |  |  | $ | 364 | 

5. Deferred funding assets

Deferred funding amounts relate to Penn Wests share of capital and operating costs to be funded by Penn Wests partner in the Peace River Oil
Partnership and Penn Wests share of capital expenditures to be funded by Penn Wests partner in the Cordova Joint Venture. Amounts expected to be settled within the next 12 months are classified as current.



|                            |  |                   |     |  |      |   |     | 
|--------------------------- |  | ----------------- | --- |  | ---- | - | --- | 
|                            |  | As at December 31 |    
|                            |  | 2013              |     |  | 2012 |  
|Peace River Oil Partnership |  | $                 | 235 |  |      | $ | 328 | 
|Cordova Joint Venture       |  |                   | 88  |  |      |   | 97  | 
|                            |  |                   |     |  |      |   |     | 
|Total                       |  | $                 | 323 |  |      | $ | 425 | 
|                            |  |                   |     |  |      |   |     | 
|Current portion             |  | $                 | 139 |  |      | $ | 187 | 
|Long-term portion           |  |                   | 184 |  |      |   | 238 | 
|                            |  |                   |     |  |      |   |     | 
|Total                       |  | $                 | 323 |  |      | $ | 425 | 
|                            |  |                   |     |  |      |   |     | 



2013 ANNUAL FINANCIAL
STATEMENTS 18



---

6. Exploration and evaluation assets



|                               |  |                        |     |   |      |   |     |  
|------------------------------ |  | ---------------------- | --- | - | ---- | - | --- | -
|                               |  | Year ended December 31 |    
|                               |  | 2013                   |     |   | 2012 |  
|Balance, beginning of year     |  | $                      | 609 |   |      | $ | 418 |  
|Capital expenditures           |  |                        | 18  |   |      |   | 110 |  
|Joint venture, carried capital |  |                        | 62  |   |      |   | 118 |  
|Expensed                       |  |                        | (44 | ) |      |   | (17 | )
|Transfers to PP&E              |  |                        |    |   |      |   | (16 | )
|Net dispositions               |  |                        |    |   |      |   | (4  | )
|                               |  |                        |     |   |      |   |     |  
|Balance, end of year           |  | $                      | 645 |   |      | $ | 609 |  
|                               |  |                        |     |   |      |   |     |  

On December 31, 2013 and 2012 no impairment existed related to exploration and evaluation assets. An impairment test was
completed on amounts reclassified into PP&E during 2012 at which time the estimated fair value exceeded the carrying amount and no impairment was indicated.

Penn Wests non-cash E&E expense primarily relates to land expiries and minor properties not expected to be continued into the development phase.

7. Property, plant and equipment

Cost



|                                 |  |                   |        |   |            |   |       |             |  |   |                 |  |  |       |     |  |  |   |        |  
|-------------------------------- |  | ----------------- | ------ | - | ---------- | - | ----- | ----------- |  | - | --------------- |  |  | ----- | --- |  |  | - | ------ | -
|                                 |  | Oil and gasassets |        |   | Facilities |   |       | Turnarounds |  |   | Corporateassets |  |  | Total |    
|Balance at January 1, 2012       |  | $                 | 14,815 |   |            | $ | 5,279 |             |  | $ | 14              |  |  | $     | 127 |  |  | $ | 20,235 |  
|Capital expenditures             |  |                   | 951    |   |            |   | 675   |             |  |   |                |  |  |       | 16  |  |  |   | 1,642  |  
|Joint venture, carried capital   |  |                   | 19     |   |            |   |      |             |  |   |                |  |  |       |    |  |  |   | 19     |  
|Acquisitions                     |  |                   | 42     |   |            |   | 10    |             |  |   |                |  |  |       |    |  |  |   | 52     |  
|Dispositions                     |  |                   | (1,786 | ) |            |   | (446  | )           |  |   |                |  |  |       |    |  |  |   | (2,232 | )
|Transfers from E&E               |  |                   | 13     |   |            |   | 3     |             |  |   |                |  |  |       |    |  |  |   | 16     |  
|Net decommissioning additions    |  |                   | 53     |   |            |   | 13    |             |  |   |                |  |  |       |    |  |  |   | 66     |  
|                                 |  |                   |        |   |            |   |       |             |  |   |                 |  |  |       |     |  |  |   |        |  
|Balance at December 31, 2012     |  | $                 | 14,107 |   |            | $ | 5,534 |             |  | $ | 14              |  |  | $     | 143 |  |  | $ | 19,798 |  
|Capital expenditures             |  |                   | 455    |   |            |   | 332   |             |  |   |                |  |  |       | 10  |  |  |   | 797    |  
|Joint venture, carried capital   |  |                   | 22     |   |            |   |      |             |  |   |                |  |  |       |    |  |  |   | 22     |  
|Acquisitions                     |  |                   | 14     |   |            |   | 4     |             |  |   |                |  |  |       |    |  |  |   | 18     |  
|Dispositions                     |  |                   | (826   | ) |            |   | (207  | )           |  |   |                |  |  |       |    |  |  |   | (1,033 | )
|Net decommissioning dispositions |  |                   | (7     | ) |            |   | (2    | )           |  |   |                |  |  |       |    |  |  |   | (9     | )
|                                 |  |                   |        |   |            |   |       |             |  |   |                 |  |  |       |     |  |  |   |        |  
|Balance at December 31, 2013     |  | $                 | 13,765 |   |            | $ | 5,661 |             |  | $ | 14              |  |  | $     | 153 |  |  | $ | 19,593 |  
|                                 |  |                   |        |   |            |   |       |             |  |   |                 |  |  |       |     |  |  |   |        |  



2013 ANNUAL FINANCIAL
STATEMENTS 19



---

Accumulated depletion, depreciation and impairment



|                             |  |                   |       |   |            |   |       |             |  |   |                 |  |  |       |    |  |  |   |        |  
|---------------------------- |  | ----------------- | ----- | - | ---------- | - | ----- | ----------- |  | - | --------------- |  |  | ----- | -- |  |  | - | ------ | -
|                             |  | Oil and gasassets |       |   | Facilities |   |       | Turnarounds |  |   | Corporateassets |  |  | Total |   
|Balance at January 1, 2012   |  | $                 | 6,293 |   |            | $ | 1,993 |             |  | $ | 10              |  |  | $     | 46 |  |  | $ | 8,342  |  
|Depletion and depreciation   |  |                   | 1,032 |   |            |   | 205   |             |  |   | 1               |  |  |       | 10 |  |  |   | 1,248  |  
|Impairments                  |  |                   | 277   |   |            |   |      |             |  |   |                |  |  |       |   |  |  |   | 277    |  
|Dispositions                 |  |                   | (769  | ) |            |   | (192  | )           |  |   |                |  |  |       |   |  |  |   | (961   | )
|                             |  |                   |       |   |            |   |       |             |  |   |                 |  |  |       |    |  |  |   |        |  
|Balance at December 31, 2012 |  | $                 | 6,833 |   |            | $ | 2,006 |             |  | $ | 11              |  |  | $     | 56 |  |  | $ | 8,906  |  
|Depletion and depreciation   |  |                   | 845   |   |            |   | 193   |             |  |   | 1               |  |  |       | 11 |  |  |   | 1,050  |  
|Impairments                  |  |                   | 742   |   |            |   |      |             |  |   |                |  |  |       |   |  |  |   | 742    |  
|Dispositions                 |  |                   | (398  | ) |            |   | (99   | )           |  |   |                |  |  |       |   |  |  |   | (497   | )
|                             |  |                   |       |   |            |   |       |             |  |   |                 |  |  |       |    |  |  |   |        |  
|Balance at December 31, 2013 |  | $                 | 8,022 |   |            | $ | 2,100 |             |  | $ | 12              |  |  | $     | 67 |  |  | $ | 10,201 |  
|                             |  |                   |       |   |            |   |       |             |  |   |                 |  |  |       |    |  |  |   |        |  

Net book value



|      |  |                   |       |  |      |   |        | 
|----- |  | ----------------- | ----- |  | ---- | - | ------ | 
|      |  | As at December 31 |      
|      |  | 2013              |       |  | 2012 |  
|Total |  | $                 | 9,392 |  |      | $ | 10,892 | 
|      |  |                   |       |  |      |   |        | 

On December 31, 2013, Penn West recorded a $742 million impairment charge related to certain non-core, natural gas
properties in British Columbia and Alberta, primarily due to limited planned development capital. Additionally, lower estimated reserve recoveries forecasted for properties located in Manitoba contributed to the impairment. The recoverable amounts
used in the impairment tests, based on fair value less cost to sell, related to these CGUs were calculated using proved plus probable reserves and incremental development drilling locations at a pre-tax discount rate of 10 percent.

On December 31, 2012, Penn West recorded a $277 million impairment charge related to certain properties in northern British Columbia, primarily due to
weak natural gas prices. The recoverable amount was based on the CGUs value-in-use. The recoverable amounts used in the impairment tests were calculated using proved plus probable reserves and a pre-tax discount rate of 10 percent.

Impairment losses have been included within depletion, depreciation and impairment. As a result of Penn Wests strategic review process and ongoing asset
disposition activity, the Company re-aligned certain of its CGUs with its current asset base in 2013.

The following table outlines benchmark prices at
December 31, 2013 used in the impairment tests:



|                                  |  |                |        |   |                 |   |      |                                  |  |  |      | 
|--------------------------------- |  | -------------- | ------ | - | --------------- | - | ---- | -------------------------------- |  |  | ---- | 
|                                  |  | WTI ($US/ bbl) |        |   | AECO ($CAD/mcf) |   |      | Exchange rate ($USequals $1 CAD) | 
|2014                              |  | $              | 94.65  |   |                 | $ | 4.00 |                                  |  |  | 0.94 | 
|2015                              |  |                | 88.37  |   |                 |   | 3.99 |                                  |  |  | 0.94 | 
|2016                              |  |                | 84.25  |   |                 |   | 4.00 |                                  |  |  | 0.94 | 
|2017                              |  |                | 95.52  |   |                 |   | 4.93 |                                  |  |  | 0.94 | 
|2018                              |  |                | 96.96  |   |                 |   | 5.01 |                                  |  |  | 0.94 | 
|2019  2023                       |  | $              | 101.41 |   |                 | $ | 5.26 |                                  |  |  | 0.94 | 
|Thereafter (inflation percentage) |  |                | 1.5    | % |                 |   | 1.5  | %                                |  |  |     | 



2013 ANNUAL FINANCIAL
STATEMENTS 20



---

8. Goodwill



|                           |  |                        |       |   |      |   |       |  
|-------------------------- |  | ---------------------- | ----- | - | ---- | - | ----- | -
|                           |  | Year ended December 31 |      
|                           |  | 2013                   |       |   | 2012 |  
|Balance, beginning of year |  | $                      | 1,966 |   |      | $ | 1,991 |  
|Dispositions               |  |                        | (6    | ) |      |   | (25   | )
|Impairment                 |  |                        | (48   | ) |      |   |      |  
|                           |  |                        |       |   |      |   |       |  
|Balance, end of year       |  | $                      | 1,912 |   |      | $ | 1,966 |  
|                           |  |                        |       |   |      |   |       |  

Penn Wests goodwill balance is primarily associated with a group of CGUs which represent key light-oil properties in the
Cardium, Carbonates and Viking areas. A small portion is related to a CGU in the Wainwright area.

Penn West completed a goodwill impairment test for the
balance related to the group of CGUs at December 31, 2013 and 2012 at which time the recoverable amount exceeded the carrying value; thus no impairment was recorded. The recoverable amount was determined based on the fair value less costs to
sell method. The key assumptions used in determining the recoverable amount include the future cash flows using reserve and resource forecasts, forecasted commodity prices, discount rates, foreign exchange rates, inflation rates and future
development costs estimated by independent reserve engineers and other internal estimates based on historical experiences and trends.

The values assigned
to the future cash flows, forecasted commodity prices and future development costs were obtained from Penn Wests year-end reserve report, which was evaluated or audited by its independent reserve engineers. These values were based on future
cash flows of proved plus probable reserves discounted at a rate of 10 percent (2012  10 percent). The future cash flows also consider, when appropriate, past capital activities, competitor analysis, observable market conditions, comparable
transactions and future development costs primarily based on anticipated development capital programs.

The value of resources incremental to the reserve
report was obtained from internal analysis completed by Penn West most notably through the review of its drilling program results and competitor analysis and outlined in its current five-year plan. This was further supported by contingent resource
studies that were compiled by independent reserve engineers. Based on this internal analysis, Penn West identified and risked potential drilling locations that were not assigned any proved plus probable reserves. The value of these additional
drilling locations was included in the recoverable amount, based on the net present value of proved undeveloped locations within the same resource play from the Companys most recent annual reserve report. A discount rate of 10 percent (2012
 10 percent) was applied to determine an estimate of the present value of the future cash flows.

At December 31, 2013, Penn West completed a
goodwill impairment test on its Wainwright CGU, to which goodwill is allocated and recorded an impairment charge in the amount of $48 million, which was the total carrying value of the goodwill attributed to the CGU. The recoverable amount was based
on the fair value less cost to sell consistent with the methodology applied above, which was primarily based on the proved plus probable reserves value, discounted at 10 percent. In 2013, Penn West reduced its goodwill balance by $54 million as a
result of allocating goodwill to minor property dispositions completed in prior years of which $25 million related to 2012 and $29 million related to prior years. The goodwill reduction in 2012 was offset to gains on dispositions and resulted in a
decrease to earnings per share by $0.06. The reduction to prior years was offset to opening retained earnings at January 1, 2012.



2013 ANNUAL FINANCIAL
STATEMENTS 21



---

9. Long-term debt



|                                                  |  |                   |       |  |      |   |       | 
|------------------------------------------------- |  | ----------------- | ----- |  | ---- | - | ----- | 
|                                                  |  | As at December 31 |      
|                                                  |  | 2013              |       |  | 2012 |  
|Bankers acceptances and prime rate loans         |  | $                 | 401   |  |      | $ | 752   | 
|U.S. Senior unsecured notes  2007 Notes          |  |                   |       |  |      |   |       | 
|5.68%, US$160 million, maturing May 31, 2015      |  |                   | 170   |  |      |   | 159   | 
|5.80%, US$155 million, maturing May 31, 2017      |  |                   | 165   |  |      |   | 154   | 
|5.90%, US$140 million, maturing May 31, 2019      |  |                   | 149   |  |      |   | 139   | 
|6.05%, US$20 million, maturing May 31, 2022       |  |                   | 21    |  |      |   | 20    | 
|Senior unsecured notes  2008 Notes               |  |                   |       |  |      |   |       | 
|6.12%, US$153 million, maturing May 29, 2016      |  |                   | 162   |  |      |   | 152   | 
|6.16%, CAD$30 million, maturing May 29, 2018      |  |                   | 30    |  |      |   | 30    | 
|6.30%, US$278 million, maturing May 29, 2018      |  |                   | 296   |  |      |   | 276   | 
|6.40%, US$49 million, maturing May 29, 2020       |  |                   | 53    |  |      |   | 49    | 
|UK Senior unsecured notes  UK Notes              |  |                   |       |  |      |   |       | 
|6.95%, £57 million, maturing July 31, 2018 (1)    |  |                   | 100   |  |      |   | 91    | 
|Senior unsecured notes  2009 Notes               |  |                   |       |  |      |   |       | 
|8.29%, US$50 million, maturing May 5, 2014        |  |                   | 53    |  |      |   | 50    | 
|8.89%, US$35 million, maturing May 5, 2016        |  |                   | 37    |  |      |   | 35    | 
|9.32%, US$34 million, maturing May 5, 2019        |  |                   | 36    |  |      |   | 34    | 
|8.89%, US$30 million, maturing May 5, 2019 (2)    |  |                   | 32    |  |      |   | 35    | 
|9.15%, £20 million, maturing May 5, 2019 (3)      |  |                   | 35    |  |      |   | 32    | 
|9.22%, 10 million, maturing May 5, 2019 (4)      |  |                   | 15    |  |      |   | 13    | 
|7.58%, CAD$5 million, maturing May 5, 2014        |  |                   | 5     |  |      |   | 5     | 
|Senior unsecured notes  2010 Q1 Notes            |  |                   |       |  |      |   |       | 
|4.53%, US$28 million, maturing March 16, 2015     |  |                   | 29    |  |      |   | 27    | 
|4.88%, CAD$50 million, maturing March 16, 2015    |  |                   | 50    |  |      |   | 50    | 
|5.29%, US$65 million, maturing March 16, 2017     |  |                   | 69    |  |      |   | 65    | 
|5.85%, US$112 million, maturing March 16, 2020    |  |                   | 120   |  |      |   | 112   | 
|5.95%, US$25 million, maturing March 16, 2022     |  |                   | 27    |  |      |   | 25    | 
|6.10%, US$20 million, maturing March 16, 2025     |  |                   | 21    |  |      |   | 20    | 
|Senior unsecured notes  2010 Q4 Notes            |  |                   |       |  |      |   |       | 
|4.44%, CAD$10 million, maturing December 2, 2015  |  |                   | 10    |  |      |   | 10    | 
|4.17%, US$18 million, maturing December 2, 2017   |  |                   | 19    |  |      |   | 18    | 
|5.38%, CAD$50 million, maturing December 2, 2020  |  |                   | 50    |  |      |   | 50    | 
|4.88%, US$84 million, maturing December 2, 2020   |  |                   | 89    |  |      |   | 84    | 
|4.98%, US$18 million, maturing December 2, 2022   |  |                   | 19    |  |      |   | 18    | 
|5.23%, US$50 million, maturing December 2, 2025   |  |                   | 53    |  |      |   | 50    | 
|Senior unsecured notes  2011 Q4 Notes            |  |                   |       |  |      |   |       | 
|3.64%, US$25 million, maturing November 30, 2016  |  |                   | 27    |  |      |   | 25    | 
|4.23%, US$12 million, maturing November 30, 2018  |  |                   | 13    |  |      |   | 12    | 
|4.63%, CAD$30 million, maturing November 30, 2018 |  |                   | 30    |  |      |   | 30    | 
|4.79%, US$68 million, maturing November 30, 2021  |  |                   | 72    |  |      |   | 68    | 
|                                                  |  |                   |       |  |      |   |       | 
|Total long-term debt                              |  | $                 | 2,458 |  |      | $ | 2,690 | 
|                                                  |  |                   |       |  |      |   |       | 



|(1) | These notes bear interest at 7.78 percent in Pounds Sterling, however, contracts were entered into which fixed the interest rate at 6.95 percent in Canadian dollars.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | This portion of the 2009 Notes has equal repayments, which began in 2013 with a repayment of $5 million, over the remaining six years.
|--- | --------------------------------------------------------------------------------------------------------------------------------------

|(3) | These notes bear interest at 9.49 percent in Pounds Sterling, however, contracts were entered into which fixed the interest rate at 9.15 percent in Canadian dollars.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | These notes bear interest at 9.52 percent in Euros, however, contracts were entered into which fixed the interest rate at 9.22 percent in Canadian dollars.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------



2013 ANNUAL FINANCIAL
STATEMENTS 22



---

The split between current and non-current long-term debt is as follows:



|                  |  |                   |       |  |      |   |       | 
|----------------- |  | ----------------- | ----- |  | ---- | - | ----- | 
|                  |  | As at December 31 |      
|                  |  | 2013              |       |  | 2012 |  
|Current portion   |  | $                 | 64    |  |      | $ | 5     | 
|Long-term portion |  |                   | 2,394 |  |      |   | 2,685 | 
|                  |  |                   |       |  |      |   |       | 
|Total             |  | $                 | 2,458 |  |      | $ | 2,690 | 
|                  |  |                   |       |  |      |   |       | 

There were no senior unsecured notes issued in either 2013 or 2012. The change in the carrying values is due to conversion to
Canadian dollar equivalents at the balance sheet date partially offset by repayments of US$5 million on the senior unsecured notes. Penn West has $641 million (39 percent) of the repayment terms of the senior unsecured notes hedged at an average of
US$1.00 equals CAD$1.00 for which the offsetting gain is recorded as unrealized risk management on foreign exchange contracts.

Additional Information on
Penn Wests senior unsecured notes was as follows:



|                                        |  |                   |     |   |      |  |     |  
|--------------------------------------- |  | ----------------- | --- | - | ---- |  | --- | -
|                                        |  | As at December 31 |    
|                                        |  | 2013              |     |   | 2012 | 
|Weighted average remaining life (years) |  |                   | 4.5 |   |      |  | 5.5 |  
|Weighted average interest rate (1)      |  |                   | 6.1 | % |      |  | 6.1 | %
|                                        |  |                   |     |   |      |  |     |  



|(1) | Includes the effect of cross currency swaps.
|--- | --------------------------------------------

The Company has a four-year, unsecured, revolving syndicated
bank facility with an aggregate borrowing limit of $3.0 billion. The facility expires on June 30, 2016 and is extendible. The credit facility contains provisions for stamping fees on bankers acceptances and LIBOR loans and standby fees on
unutilized credit lines that vary depending on certain consolidated financial ratios. At December 31, 2013, the Company had approximately $2.6 billion of unused credit capacity available.

Drawings on the Companys credit facility are subject to fluctuations in short-term money market rates as they are generally held in short-term money
market instruments. As at December 31, 2013, none (2012  four percent) of Penn Wests long-term debt instruments were exposed to changes in short-term interest rates.

Letters of credit totalling $7 million were outstanding on December 31, 2013 (2012  $5 million) that reduce the amount otherwise available to be
drawn on the syndicated facility.

Realized gains and losses on the interest rate swaps are recorded as financing costs. For 2013, an expense of $9
million (2012  $9 million) was incurred to reflect that the floating interest rate was lower than the fixed interest rate transacted under Penn Wests interest rate swaps.

The estimated fair values of the principal and interest obligations of the outstanding unsecured notes were as follows:



|              |  |                   |       |  |      |   |       | 
|------------- |  | ----------------- | ----- |  | ---- | - | ----- | 
|              |  | As at December 31 |      
|              |  | 2013              |       |  | 2012 |  
|2007 Notes    |  | $                 | 546   |  |      | $ | 517   | 
|2008 Notes    |  |                   | 592   |  |      |   | 565   | 
|UK Notes      |  |                   | 103   |  |      |   | 96    | 
|2009 Notes    |  |                   | 239   |  |      |   | 235   | 
|2010 Q1 Notes |  |                   | 336   |  |      |   | 326   | 
|2010 Q4 Notes |  |                   | 247   |  |      |   | 237   | 
|2011 Notes    |  |                   | 142   |  |      |   | 137   | 
|              |  |                   |       |  |      |   |       | 
|Total         |  | $                 | 2,205 |  |      | $ | 2,113 | 
|              |  |                   |       |  |      |   |       | 



2013 ANNUAL FINANCIAL
STATEMENTS 23



---

10. Decommissioning liability

The decommissioning liability is based upon the present value of Penn Wests net share of estimated future costs of obligations to abandon and reclaim all
wells, facilities and pipelines. These estimates were made by management using information from internal analysis and external consultants assuming current costs, technology and enacted legislation.

The decommissioning liability was determined by applying an inflation factor of 2.0 percent (20122.0 percent) and the inflated amount was discounted
using a credit-adjusted rate of 6.5 percent (20127.0 percent) over the expected useful life of the underlying assets, currently extending over 50 years into the future.

Changes to the decommissioning liability were as follows:



|                                                  |  |                        |     |   |      |   |      |  
|------------------------------------------------- |  | ---------------------- | --- | - | ---- | - | ---- | -
|                                                  |  | Year ended December 31 |    
|                                                  |  | 2013                   |     |   | 2012 |  
|Balance, beginning of year                        |  | $                      | 635 |   |      | $ | 607  |  
|Net liabilities incurred (disposed) (1)           |  |                        | (90 | ) |      |   | (166 | )
|Increase in liability due to changes in estimates |  |                        | 81  |   |      |   | 232  |  
|Liabilities settled                               |  |                        | (66 | ) |      |   | (92  | )
|Accretion charges                                 |  |                        | 43  |   |      |   | 54   |  
|                                                  |  |                        |     |   |      |   |      |  
|Balance, end of year                              |  | $                      | 603 |   |      | $ | 635  |  
|                                                  |  |                        |     |   |      |   |      |  



|(1) | Includes additions from drilling activity, facility capital spending and disposals from net property dispositions.
|--- | ------------------------------------------------------------------------------------------------------------------

11. Risk management

Financial instruments included in
the balance sheets consist of accounts receivable, fair values of derivative financial instruments, accounts payable and accrued liabilities, dividends payable and long-term debt. Except for the senior, unsecured notes described in Note 9, the fair
values of these financial instruments approximate their carrying amounts due to the short-term maturity of the instruments, the mark to market values recorded for the financial instruments and the market rate of interest applicable to the bank
facility.

The fair values of all outstanding financial, commodity, power, interest rate and foreign exchange contracts are reflected on the balance sheet
with the changes during the period recorded in income as unrealized gains or losses.

As at December 31, 2013 and 2012, the only asset or liability
measured at fair value on a recurring basis was the risk management asset and liability, which was valued based on Level 2 inputs being quoted prices in markets that are not active or based on prices that are observable for the asset or
liability.



2013 ANNUAL FINANCIAL
STATEMENTS 24



---

A comparison of the carrying value to the fair value of the financial instruments included in the balance sheet
was as follows:



|                                          |  |                        |  |                |       |  |            |   |       |      |  |   |       |  |  |   |       | 
|----------------------------------------- |  | ---------------------- |  | -------------- | ----- |  | ---------- | - | ----- | ---- |  | - | ----- |  |  | - | ----- | 
|                                          |  |                        |  | Carrying value |       |  | Fair value |  
|                                          |  | Classification         |  | 2013           |       |  | 2012       |   |       | 2013 |  |   | 2012  | 
|Accounts receivable                       |  | Loans and receivables  |  | $              | 263   |  |            | $ | 364   |      |  | $ | 263   |  |  | $ | 364   | 
|Derivative financial assets               |  | FV through profit/loss |  |                | 52    |  |            |   | 102   |      |  |   | 52    |  |  |   | 102   | 
|Derivative financial liabilities          |  | FV through profit/loss |  |                | 40    |  |            |   | 44    |      |  |   | 40    |  |  |   | 44    | 
|Accounts payable and accrued liabilities  |  | Financial liabilities  |  |                | 654   |  |            |   | 764   |      |  |   | 654   |  |  |   | 764   | 
|Dividends payable                         |  | Financial liabilities  |  |                | 68    |  |            |   | 129   |      |  |   | 68    |  |  |   | 129   | 
|Bankers acceptances and prime rate loans |  | Financial liabilities  |  |                | 401   |  |            |   | 752   |      |  |   | 401   |  |  |   | 752   | 
|Senior notes (1)                          |  | Financial liabilities  |  | $              | 2,057 |  |            | $ | 1,938 |      |  | $ | 2,205 |  |  | $ | 2,113 | 



|(1) | Calculated as the present value of the interest and principal payments at December 31.
|--- | --------------------------------------------------------------------------------------

The following
table reconciles the changes in the fair value of financial instruments outstanding:



|                                                        |  |                        |     |   |      |   |     |  
|------------------------------------------------------- |  | ---------------------- | --- | - | ---- | - | --- | -
|                                                        |  | Year ended December 31 |    
|Risk management asset (liability)                       |  | 2013                   |     |   | 2012 |  
|Balance, beginning of year                              |  | $                      | 58  |   |      | $ | (93 | )
|Unrealized gain (loss) on financial instruments:        |  |                        |     |   |      |   |     |  
|Commodity collars and swaps                             |  |                        | (94 | ) |      |   | 156 |  
|Electricity swaps                                       |  |                        |    |   |      |   | (28 | )
|Interest rate swaps                                     |  |                        | 9   |   |      |   | 12  |  
|Foreign exchange forwards                               |  |                        | 27  |   |      |   | 1   |  
|Cross currency swaps                                    |  |                        | 12  |   |      |   | 10  |  
|                                                        |  |                        |     |   |      |   |     |  
|Total fair value, end of year                           |  | $                      | 12  |   |      | $ | 58  |  
|                                                        |  |                        |     |   |      |   |     |  
|Total fair value consists of the following:             |  |                        |     |   |      |   |     |  
|Fair value, end of year  current asset portion         |  | $                      | 2   |   |      | $ | 76  |  
|Fair value, end of year  current liability portion     |  |                        | (24 | ) |      |   | (9  | )
|Fair value, end of year  non-current asset portion     |  |                        | 50  |   |      |   | 26  |  
|Fair value, end of year  non-current liability portion |  |                        | (16 | ) |      |   | (35 | )
|                                                        |  |                        |     |   |      |   |     |  
|Total fair value, end of year                           |  | $                      | 12  |   |      | $ | 58  |  
|                                                        |  |                        |     |   |      |   |     |  

Based on December 31, 2013 pricing, a $1.00 change in the price per barrel of liquids would change pre-tax unrealized
risk management by $4 million and a $0.10 change in the price per mcf of natural gas would change pre-tax unrealized risk management by an insignificant amount.

Penn West records its risk management assets and liabilities on a net basis in the consolidated balance sheets. Excluding offsetting of counterparty
positions, Penn Wests risk management assets and liabilities were as follows:



|                      |  |                   |     |   |      |   |     |  
|--------------------- |  | ----------------- | --- | - | ---- | - | --- | -
|                      |  | As at December 31 |    
|                      |  | 2013              |     |   | 2012 |  
|Risk management       |  |                   |     |   |      |   |     |  
|Current asset         |  | $                 | 3   |   |      | $ | 76  |  
|Non-current asset     |  |                   | 51  |   |      |   | 26  |  
|Current liability     |  |                   | (25 | ) |      |   | (9  | )
|Non-current liability |  | $                 | (17 | ) |      | $ | (35 | )



2013 ANNUAL FINANCIAL
STATEMENTS 25



---

Penn West had the following financial instruments outstanding as at December 31, 2013. Fair values are
determined using external counterparty information, which is compared to observable market data. Penn West limits its credit risk by executing counterparty risk procedures which include transacting only with institutions within Penn Wests
credit facility or with high credit ratings and by obtaining financial security in certain circumstances.



|                                          |  |                |               |  |               |  |                 |         |  |  |                         |  |  |  |     |  
|----------------------------------------- |  | -------------- | ------------- |  | ------------- |  | --------------- | ------- |  |  | ----------------------- |  |  |  | --- | -
|                                          |  | Notionalvolume |               |  | Remainingterm |  |                 | Pricing |  |  | Fair value(millions)    | 
|Crude oil                                 |  |                |               |  |               |  |                 |         |  |  |                         |  |  |  |     |  
|WTI Collars                               |  |                | 10,000 bbls/d |  |               |  | Jan/14  Jun/14 |         |  |  | US$93.20 to $101.00/bbl |  |  |  | $  |  
|WTI Swaps                                 |  |                | 20,000 bbls/d |  |               |  | Jan/14  Jun/14 |         |  |  | US$93.74/bbl            |  |  |  | (15 | )
|Natural gas                               |  |                |               |  |               |  |                 |         |  |  |                         |  |  |  |     |  
|AECO Forwards                             |  |                | 90,000 mcf/d  |  |               |  | Jan/14  Dec/14 |         |  |  | $3.90/mcf               |  |  |  |    |  
|AECO Collars                              |  |                | 50,000 mcf/d  |  |               |  | Jan/14  Dec/14 |         |  |  | $3.41 to $4.17/mcf      |  |  |  | (2  | )
|Electricity swaps                         |  |                |               |  |               |  |                 |         |  |  |                         |  |  |  |     |  
|Alberta Power Pool                        |  |                | 70 MW         |  |               |  | Jan/14  Dec/14 |         |  |  | $58.50/MWh              |  |  |  | (3  | )
|Alberta Power Pool                        |  |                | 10 MW         |  |               |  | Jan/14  Dec/15 |         |  |  | $58.50/MWh              |  |  |  | (1  | )
|Alberta Power Pool                        |  |                | 70 MW         |  |               |  | Jan/15  Dec/15 |         |  |  | $56.43/MWh              |  |  |  | (4  | )
|Alberta Power Pool                        |  |                | 25 MW         |  |               |  | Jan/16  Dec/16 |         |  |  | $49.90/MWh              |  |  |  |    |  
|Interest rate swaps                       |  |                | $650          |  |               |  | Jan/14          |         |  |  | 2.65%                   |  |  |  | (1  | )
|Foreign exchange forwards on senior notes |  |                |               |  |               |  |                 |         |  |  |                         |  |  |  |     |  
|3 to 15-year initial term                 |  |                | US$641        |  |               |  | 2014  2022     |         |  |  | 1.000 CAD/USD           |  |  |  | 50  |  
|Cross currency swaps                      |  |                |               |  |               |  |                 |         |  |  |                         |  |  |  |     |  
|10-year initial term                      |  |                | £57           |  |               |  | 2018            |         |  |  | 2.0075 CAD/GBP, 6.95%   |  |  |  | (12 | )
|10-year initial term                      |  |                | £20           |  |               |  | 2019            |         |  |  | 1.8051 CAD/GBP, 9.15%   |  |  |  |    |  
|10-year initial term                      |  |                | 10           |  |               |  | 2019            |         |  |  | 1.5870 CAD/EUR,9.22%    |  |  |  |    |  
|                                          |  |                |               |  |               |  |                 |         |  |  |                         |  |  |  |     |  
|Total                                     |  |                |               |  |               |  |                 |         |  |  |                         |  |  |  | $12 |  
|                                          |  |                |               |  |               |  |                 |         |  |  |                         |  |  |  |     |  

A realized gain of $11 million (2012$7 million) on electricity contracts has been included in operating costs for 2013.

Subsequent to December 31, 2013, Penn West entered into AECO collars in 2015 on 70,000 mcf per day between $3.69 per mcf and $4.52 per mcf and
foreign exchange forward contracts on revenue from January 2014 to June 2014 on $84 million per month at a floor of 1.0775 CAD/USD and a ceiling of 1.1050 CAD/USD.



2013 ANNUAL FINANCIAL
STATEMENTS 26



---

Market Risks

Penn
West is exposed to normal market risks inherent in the oil and natural gas business, including, but not limited to, commodity price risk, foreign currency rate risk, credit risk, interest rate risk and liquidity risk. The Company seeks to mitigate
these risks through various business processes and management controls and from time to time by using financial instruments.

Commodity Price Risk

Commodity price fluctuations are among the Companys most significant exposures. Crude oil prices are influenced by worldwide factors such as OPEC
actions, world supply and demand fundamentals and geopolitical events. Natural gas prices are influenced by the price of alternative fuel sources such as oil or coal and by North American natural gas supply and demand fundamentals including the
levels of industrial activity, weather, storage levels and liquefied natural gas activity. In accordance with policies approved by Penn Wests Board of Directors, the Company may, from time to time, manage these risks through the use of swaps,
collars or other financial instruments up to a maximum of 50 percent of forecast sales volumes, net of royalties, for the balance of any current year plus one additional year forward and up to a maximum of 25 percent, net of royalties, for one
additional year thereafter. Risk management limits included in Penn Wests policies may be exceeded with specific approval from the Board of Directors.

Foreign Currency Rate Risk

Prices received for crude oil are
referenced to US dollars, thus Penn Wests realized oil prices are impacted by Canadian dollar to US dollar exchange rates. A portion of the Companys debt capital is denominated in US dollars, thus the principal and interest payments in
Canadian dollars are also impacted by exchange rates. When considered appropriate, the Company may use financial instruments to fix or collar future exchange rates to fix the Canadian dollar equivalent of crude oil revenues or to fix US denominated
long-term debt principal repayments. At December 31, 2013, the following foreign currency forward contracts were outstanding:



|               |  |                 |      |  |               |  |                 | 
|-------------- |  | --------------- | ---- |  | ------------- |  | --------------- | 
|Nominal Amount |  | Settlement date |      |  | Exchange rate | 
|Buy US$20      |  |                 | 2014 |  |               |  | 0.99885 CAD/USD | 
|Buy US$76      |  |                 | 2015 |  |               |  | 1.00705 CAD/USD | 
|Buy US$74      |  |                 | 2016 |  |               |  | 0.99838 CAD/USD | 
|Buy US$104     |  |                 | 2017 |  |               |  | 0.99895 CAD/USD | 
|Buy US$113     |  |                 | 2018 |  |               |  | 0.99885 CAD/USD | 
|Buy US$100     |  |                 | 2019 |  |               |  | 0.99386 CAD/USD | 
|Buy US$134     |  |                 | 2020 |  |               |  | 0.99885 CAD/USD | 
|Buy US$20      |  |                 | 2022 |  |               |  | 0.98740 CAD/USD | 

At December 31, 2013, Penn West had US dollar denominated debt with a face value of US$1.0 billion (2012US$1.0
billion) on which the repayment of the principal amount in Canadian dollars was not fixed.



2013 ANNUAL FINANCIAL
STATEMENTS 27



---

Credit Risk

Credit
risk is the risk of loss if purchasers or counterparties do not fulfill their contractual obligations. The Companys accounts receivable are principally with customers in the oil and natural gas industry and are generally subject to normal
industry credit risk, which includes the ability to recover unpaid receivables by retaining the partners share of production when Penn West is the operator. For oil and natural gas sales and financial derivatives, a counterparty risk procedure
is followed whereby each counterparty is reviewed on a regular basis for the purpose of assigning a credit limit and may be requested to provide security if determined to be prudent. For financial derivatives, the Company normally transacts with
counterparties who are members of its banking syndicate or other counterparties that have investment grade bond ratings. Credit events related to all counterparties are monitored and credit exposures are reassessed on a regular basis. As necessary,
provisions for potential credit related losses are recognized.

As at December 31, 2013, the maximum exposure to credit risk was $263 million
(2012$364 million) being the carrying value of the accounts receivable.

Interest Rate Risk

A portion of the Companys debt capital is held in floating-rate bank facilities, which results in exposure to fluctuations in short-term interest rates,
which remain at lower levels than longer-term rates. From time to time, Penn West may increase the certainty of its future interest rates by entering fixed interest rate debt instruments or by using financial instruments to swap floating interest
rates for fixed rates or to collar interest rates. As at December 31, 2013, none of the Companys long-term debt instruments were exposed to changes in short-term interest rates (2012  four percent).

As at December 31, 2013, a total of $2.1 billion (2012  $1.9 billion) of fixed interest rate debt instruments was outstanding with an average
remaining term of 4.5 years (2012  5.5 years) and an average interest rate of 5.8 percent (2012  5.8 percent), including the effects of interest rate swaps.

Liquidity Risk

Liquidity risk is the risk that the Company will
be unable to meet its financial liabilities as they come due. Management utilizes short and long-term financial and capital forecasting programs to ensure credit facilities are sufficient relative to forecast debt levels, dividend and capital
program levels are appropriate, and that financial covenants will be met. Management also regularly reviews capital markets to identify opportunities to optimize the debt capital structure on a cost effective basis. In the short term, liquidity is
managed through daily cash management activities, short-term financing strategies and the use of collars and other financial instruments to increase the predictability of cash flow from operating activities.

The following table outlines estimated future obligations for non-derivative financial liabilities as at December 31, 2013:



|                                         |  |      |     |  |      |   |     |      |  |   |      |  |  |      |     |  |            |   |     |  |  |   |     | 
|---------------------------------------- |  | ---- | --- |  | ---- | - | --- | ---- |  | - | ---- |  |  | ---- | --- |  | ---------- | - | --- |  |  | - | --- | 
|                                         |  | 2014 |     |  | 2015 |   |     | 2016 |  |   | 2017 |  |  | 2018 |     |  | Thereafter |  
|Bank debt                                |  | $    |    |  |      | $ |    |      |  | $ | 401  |  |  | $    |    |  |            | $ |    |  |  | $ |    | 
|Senior unsecured notes                   |  |      | 64  |  |      |   | 265 |      |  |   | 230  |  |  |      | 258 |  |            |   | 474 |  |  |   | 766 | 
|Accounts payable and accrued liabilities |  |      | 642 |  |      |   |    |      |  |   |     |  |  |      |    |  |            |   |    |  |  |   |    | 
|Dividends payable                        |  |      | 68  |  |      |   |    |      |  |   |     |  |  |      |    |  |            |   |    |  |  |   |    | 
|Share-based compensation accrual         |  |      | 12  |  |      |   | 9   |      |  |   |     |  |  |      |    |  |            |   |    |  |  |   |    | 
|                                         |  |      |     |  |      |   |     |      |  |   |      |  |  |      |     |  |            |   |     |  |  |   |     | 
|Total                                    |  | $    | 786 |  |      | $ | 274 |      |  | $ | 631  |  |  | $    | 258 |  |            | $ | 474 |  |  | $ | 766 | 
|                                         |  |      |     |  |      |   |     |      |  |   |      |  |  |      |     |  |            |   |     |  |  |   |     | 



2013 ANNUAL FINANCIAL
STATEMENTS 28



---

12. Income taxes

The provision for income taxes is as follows:



|                                 |  |                        |      |   |      |   |    | 
|-------------------------------- |  | ---------------------- | ---- | - | ---- | - | -- | 
|                                 |  | Year ended December 31 |     
|Deferred tax expense (recovery)  |  | 2013                   |      |   | 2012 |  
|Changes in temporary differences |  | $                      | (243 | ) |      | $ | 63 | 
|                                 |  |                        |      |   |      |   |    | 

The provision for income taxes reflects an effective tax rate that differs from the combined federal and provincial statutory
tax rate as follows:



|                                       |  |                        |        |   |      |   |      |  
|-------------------------------------- |  | ---------------------- | ------ | - | ---- | - | ---- | -
|                                       |  | Year ended December 31 |       
|                                       |  | 2013                   |        |   | 2012 |  
|Income (loss) before taxes             |  | $                      | (1,081 | ) |      | $ | 212  |  
|Combined statutory tax rate (1)        |  |                        | 25.3   | % |      |   | 25.4 | %
|Computed income tax expense (recovery) |  | $                      | (273   | ) |      | $ | 54   |  
|Increase (decrease) resulting from:    |  |                        |        |   |      |   |      |  
|Share-based compensation               |  |                        | 4      |   |      |   | 7    |  
|Unrealized foreign exchange            |  |                        | 21     |   |      |   | (5   | )
|Non-deductible impairment              |  |                        | 14     |   |      |   | 6    |  
|Other                                  |  |                        | (9     | ) |      |   | 1    |  
|                                       |  |                        |        |   |      |   |      |  
|Deferred tax expense (recovery)        |  | $                      | (243   | ) |      | $ | 63   |  
|                                       |  |                        |        |   |      |   |      |  



|(1) | The tax rate represents the combined federal and provincial statutory tax rates for the Company and its subsidiaries for the years ended December 31, 2013 and December 31, 2012.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Penn West has income tax filings that are subject to audit by taxation authorities, which may impact its deferred tax liability. Penn West does not anticipate
adjustments arising from these audits and believes it has adequately provided for income taxes based on available information, however, adjustments that arise could be material.

The net deferred income tax liability is comprised of the following:



|                                  |  |                        |       |   |                              |   |      |                                           |  |   |                          |  |  |   |       |  
|--------------------------------- |  | ---------------------- | ----- | - | ---------------------------- | - | ---- | ----------------------------------------- |  | - | ------------------------ |  |  | - | ----- | -
|                                  |  | BalanceJanuary 1, 2012 |       |   | Provision(Recovery)in Income |   |      | Recognized inProperty, Plant andEquipment |  |   | BalanceDecember 31, 2012 | 
|Deferred tax liabilities (assets) |  |                        |       |   |                              |   |      |                                           |  |   |                          |  |  |   |       |  
|PP&E                              |  | $                      | 2,256 |   |                              | $ | (266 | )                                         |  | $ |                         |  |  | $ | 1,990 |  
|Risk management                   |  |                        | (26   | ) |                              |   | 52   |                                           |  |   |                         |  |  |   | 26    |  
|Decommissioning liability         |  |                        | (164  | ) |                              |   | 3    |                                           |  |   |                         |  |  |   | (161  | )
|Stock-based compensation          |  |                        | (26   | ) |                              |   | 19   |                                           |  |   |                         |  |  |   | (7    | )
|Non-capital losses                |  |                        | (753  | ) |                              |   | 255  |                                           |  |   |                         |  |  |   | (498  | )
|                                  |  |                        |       |   |                              |   |      |                                           |  |   |                          |  |  |   |       |  
|Net deferred tax liability        |  | $                      | 1,287 |   |                              | $ | 63   |                                           |  | $ |                         |  |  | $ | 1,350 |  
|                                  |  |                        |       |   |                              |   |      |                                           |  |   |                          |  |  |   |       |  



|                                  |  |                        |       |   |                              |   |      |                                           |  |   |                          |   |  |   |       |  
|--------------------------------- |  | ---------------------- | ----- | - | ---------------------------- | - | ---- | ----------------------------------------- |  | - | ------------------------ | - |  | - | ----- | -
|                                  |  | BalanceJanuary 1, 2013 |       |   | Provision(Recovery)in Income |   |      | Recognized inProperty, Plant andEquipment |  |   | BalanceDecember 31, 2013 |  
|Deferred tax liabilities (assets) |  |                        |       |   |                              |   |      |                                           |  |   |                          |   |  |   |       |  
|PP&E                              |  | $                      | 1,990 |   |                              | $ | (22  | )                                         |  | $ | (12                      | ) |  | $ | 1,956 |  
|Risk management                   |  |                        | 26    |   |                              |   | (23  | )                                         |  |   |                         |   |  |   | 3     |  
|Decommissioning liability         |  |                        | (161  | ) |                              |   | 8    |                                           |  |   |                         |   |  |   | (153  | )
|Stock-based compensation          |  |                        | (7    | ) |                              |   | 2    |                                           |  |   |                         |   |  |   | (5    | )
|Non-capital losses                |  |                        | (498  | ) |                              |   | (201 | )                                         |  |   |                         |   |  |   | (699  | )
|                                  |  |                        |       |   |                              |   |      |                                           |  |   |                          |   |  |   |       |  
|Net deferred tax liability        |  | $                      | 1,350 |   |                              | $ | (236 | )                                         |  | $ | (12                      | ) |  | $ | 1,102 |  
|                                  |  |                        |       |   |                              |   |      |                                           |  |   |                          |   |  |   |       |  



2013 ANNUAL FINANCIAL
STATEMENTS 29



---

13. Shareholders equity

a) Authorized

i) An unlimited number
of Common Shares.

ii) 90,000,000 preferred shares issuable in one or more series.

Penn West has a Dividend Reinvestment and Optional Share Purchase Plan (the DRIP) that provides eligible shareholders the opportunity to reinvest
quarterly cash dividends into additional common shares at a potential discount. Common shares are issued from Treasury at 95 percent of the 10-day volume-weighted average market price when available. When common shares are not available from
Treasury they are acquired in the open market at prevailing market prices.

Eligible shareholders who participate in the DRIP may also purchase additional
common shares, subject to a quarterly maximum of $15,000 and a minimum of $500. Optional cash purchase common shares are acquired in the open market at prevailing market prices or issued from Treasury, without a discount at the 10-day
volume-weighted average market price.

If issued, preferred shares of each series would rank on parity with the preferred shares of other series with
respect to accumulated dividends and return on capital. Preferred shares would have priority over the Common shares with respect to the payment of dividends or the distribution of assets.

b) Issued



|                                                    |  |               |             |   |        |   |       | 
|--------------------------------------------------- |  | ------------- | ----------- | - | ------ | - | ----- | 
|Shareholders capital                               |  | Common Shares |             |   | Amount |  
|Balance, January 1, 2012                            |  |               | 471,372,730 |   |        | $ | 8,840 | 
|Issued on exercise of equity compensation plans (1) |  |               | 229,633     |   |        |   | 28    | 
|Issued to dividend reinvestment plan                |  |               | 7,779,185   |   |        |   | 117   | 
|Cancellations (2)                                   |  |               | (122,878    | ) |        |   |      | 
|                                                    |  |               |             |   |        |   |       | 
|Balance, January 1, 2013                            |  |               | 479,258,670 |   |        | $ | 8,985 | 
|Issued on exercise of equity compensation plans(1)  |  |               | 1,239,181   |   |        |   | 44    | 
|Issued to dividend reinvestment plan                |  |               | 9,275,996   |   |        |   | 95    | 
|Cancellations (2)                                   |  |               | (696,563    | ) |        |   |      | 
|                                                    |  |               |             |   |        |   |       | 
|Balance, December 31, 2013                          |  |               | 489,077,284 |   |        | $ | 9,124 | 
|                                                    |  |               |             |   |        |   |       | 



|(1) | Upon exercise of options, the net benefit is recorded as a reduction of other reserves and an increase to shareholders capital. Included are 102,793 shares issued from Treasury (2012  15,364) due to
individuals settling restricted rights in exchange for common shares.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Represents shares cancelled pursuant to sunset clauses contained in prior plans of arrangement.
|--- | -----------------------------------------------------------------------------------------------



|                                    |  |                        |     |   |      |   |     |  
|----------------------------------- |  | ---------------------- | --- | - | ---- | - | --- | -
|                                    |  | Year ended December 31 |    
|Other Reserves                      |  | 2013                   |     |   | 2012 |  
|Balance, beginning of year          |  | $                      | 97  |   |      | $ | 95  |  
|Share-based compensation expense    |  |                        | 15  |   |      |   | 27  |  
|Net benefit on options exercised(1) |  |                        | (32 | ) |      |   | (25 | )
|                                    |  |                        |     |   |      |   |     |  
|Balance, end of year                |  | $                      | 80  |   |      | $ | 97  |  
|                                    |  |                        |     |   |      |   |     |  



|(1) | Upon exercise of options, the net benefit is recorded as a reduction of other reserves and an increase to shareholders capital.
|--- | --------------------------------------------------------------------------------------------------------------------------------

Preferred Shares

No Preferred Shares were issued or
outstanding.



2013 ANNUAL FINANCIAL
STATEMENTS 30



---

14. Share-based compensation

Stock Option Plan

Penn West has an Option Plan that
allows Penn West to issue options to acquire common shares to officers, employees and other service providers. The current plan came into effect on January 1, 2011.

Under the terms of the plan, the number of options reserved for issuance under the Option Plan plus the number of common share rights reserved for issuance
under the CSRIP shall not exceed nine percent of the aggregate number of issued and outstanding common shares of Penn West. The grant price of options is equal to the volume-weighted average trading price of the common shares on TSX for a
five-trading-day period immediately preceding the date of grant. Options granted to date vest over a four-year period and expire five years after the date of grant.



|                               |  |                        |            |   |                               |   |       |                  |  |  |                               |   |  |   |       | 
|------------------------------ |  | ---------------------- | ---------- | - | ----------------------------- | - | ----- | ---------------- |  |  | ----------------------------- | - |  | - | ----- | 
|                               |  | Year ended December 31 |           
|                               |  | 2013                   |            |   | 2012                          |  
|Options                        |  | Number ofOptions       |            |   | WeightedAverageExercise Price |   |       | Number ofOptions |  |  | WeightedAverageExercise Price |  
|Outstanding, beginning of year |  |                        | 15,737,400 |   |                               | $ | 22.54 |                  |  |  | 7,919,600                     |   |  | $ | 25.73 | 
|Granted                        |  |                        | 8,937,200  |   |                               |   | 10.32 |                  |  |  | 9,202,900                     |   |  |   | 19.88 | 
|Exercised                      |  |                        | (1,000,000 | ) |                               |   | 10.24 |                  |  |  |                              |   |  |   |      | 
|Forfeited                      |  |                        | (8,722,770 | ) |                               |   | 19.85 |                  |  |  | (1,385,100                    | ) |  |   | 23.05 | 
|                               |  |                        |            |   |                               |   |       |                  |  |  |                               |   |  |   |       | 
|Outstanding, end of year       |  |                        | 14,951,830 |   |                               | $ | 17.63 |                  |  |  | 15,737,400                    |   |  | $ | 22.54 | 
|                               |  |                        |            |   |                               |   |       |                  |  |  |                               |   |  |   |       | 
|Exercisable, end of year       |  |                        | 3,419,818  |   |                               | $ | 23.46 |                  |  |  | 2,566,282                     |   |  | $ | 25.05 | 
|                               |  |                        |            |   |                               |   |       |                  |  |  |                               |   |  |   |       | 



|                      |  |                     |            |  |                              |   |       |                                          |  |  |                   |  |  |                              |           |  |  |   |       | 
|--------------------- |  | ------------------- | ---------- |  | ---------------------------- | - | ----- | ---------------------------------------- |  |  | ----------------- |  |  | ---------------------------- | --------- |  |  | - | ----- | 
|                      |  | Options Outstanding |            |  | Options Exercisable          |  
|Range of Grant Prices |  | NumberOutstanding   |            |  | WeightedAverageExercisePrice |   |       | WeightedRemainingContractualLife (years) |  |  | NumberExercisable |  |  | WeightedAverageExercisePrice |          
|$10.00 - $13.99       |  |                     | 6,227,000  |  |                              | $ | 10.43 |                                          |  |  | 4.3               |  |  |                              | 92,525    |  |  | $ | 11.50 | 
|$14.00 - $18.99       |  |                     | 1,080,825  |  |                              |   | 15.52 |                                          |  |  | 3.4               |  |  |                              | 379,325   |  |  |   | 15.68 | 
|$19.00 - $23.99       |  |                     | 4,331,850  |  |                              |   | 21.02 |                                          |  |  | 3.2               |  |  |                              | 1,172,156 |  |  |   | 20.90 | 
|$24.00 - $27.99       |  |                     | 3,312,155  |  |                              |   | 27.43 |                                          |  |  | 2.3               |  |  |                              | 1,775,812 |  |  |   | 27.43 | 
|                      |  |                     |            |  |                              |   |       |                                          |  |  |                   |  |  |                              |           |  |  |   |       | 
|                      |  |                     | 14,951,830 |  |                              | $ | 17.63 |                                          |  |  | 3.2               |  |  |                              | 3,419,818 |  |  | $ | 23.46 | 
|                      |  |                     |            |  |                              |   |       |                                          |  |  |                   |  |  |                              |           |  |  |   |       | 

Common Share Rights Incentive Plan (CSRIP)

The CSRIP includes Restricted Options, Restricted Rights and Share Rights.



|                               |  |                            |            |   |                               |   |       |                            |  |  |                               |   |  |   |       | 
|------------------------------ |  | -------------------------- | ---------- | - | ----------------------------- | - | ----- | -------------------------- |  |  | ----------------------------- | - |  | - | ----- | 
|                               |  | Year ended December 31     |           
|                               |  | 2013                       |            |   | 2012                          |  
|Restricted Options             |  | Number ofRestrictedOptions |            |   | WeightedAverageExercise Price |   |       | Number ofRestrictedOptions |  |  | WeightedAverageExercise Price |  
|Outstanding, beginning of year |  |                            | 10,535,361 |   |                               | $ | 23.84 |                            |  |  | 17,110,193                    |   |  | $ | 23.84 | 
|Forfeited                      |  |                            | (7,479,947 | ) |                               |   | 23.84 |                            |  |  | (6,574,832                    | ) |  |   | 23.84 | 
|                               |  |                            |            |   |                               |   |       |                            |  |  |                               |   |  |   |       | 
|Outstanding, end of year       |  |                            | 3,055,414  |   |                               | $ | 23.84 |                            |  |  | 10,535,361                    |   |  | $ | 23.84 | 
|                               |  |                            |            |   |                               |   |       |                            |  |  |                               |   |  |   |       | 
|Exercisable, end of year       |  |                            | 3,055,414  |   |                               | $ | 23.84 |                            |  |  | 8,782,046                     |   |  | $ | 23.84 | 
|                               |  |                            |            |   |                               |   |       |                            |  |  |                               |   |  |   |       | 



2013 ANNUAL FINANCIAL
STATEMENTS 31



---

|                               |  |                           |            |   |                               |   |       |                           |  |  |                               |   |  |   |       | 
|------------------------------ |  | ------------------------- | ---------- | - | ----------------------------- | - | ----- | ------------------------- |  |  | ----------------------------- | - |  | - | ----- | 
|                               |  | Year ended December 31    |           
|                               |  | 2013                      |            |   | 2012                          |  
|Restricted Rights              |  | Number ofRestrictedRights |            |   | WeightedAverageExercise Price |   |       | Number ofRestrictedRights |  |  | WeightedAverageExercise Price |  
|Outstanding, beginning of year |  |                           | 10,535,361 |   |                               | $ | 13.32 |                           |  |  | 17,110,193                    |   |  | $ | 15.15 | 
|Exercised (1)                  |  |                           | (4,528,893 | ) |                               |   | 6.65  |                           |  |  | (4,891,135                    | ) |  |   | 14.44 | 
|Forfeited                      |  |                           | (2,951,054 | ) |                               |   | 16.45 |                           |  |  | (1,683,697                    | ) |  |   | 17.68 | 
|                               |  |                           |            |   |                               |   |       |                           |  |  |                               |   |  |   |       | 
|Outstanding, end of year (2)   |  |                           | 3,055,414  |   |                               | $ | 16.91 |                           |  |  | 10,535,361                    |   |  | $ | 13.32 | 
|                               |  |                           |            |   |                               |   |       |                           |  |  |                               |   |  |   |       | 
|Exercisable, end of year       |  |                           | 3,055,414  |   |                               | $ | 16.91 |                           |  |  | 8,782,046                     |   |  | $ | 12.41 | 
|                               |  |                           |            |   |                               |   |       |                           |  |  |                               |   |  |   |       | 



|(1) | The weighted average share price of restricted rights exercised in 2013 was $10.67 per share (2012$19.84 per share).
|--- | ---------------------------------------------------------------------------------------------------------------------

|(2) | Weighted average exercise price includes reductions of the exercise price for dividends paid.
|--- | ---------------------------------------------------------------------------------------------

The remaining
Restricted Options and Restricted Rights vest over a three-year period and expire four years after the date of the grant. A Restricted Option and related Restricted Right must be exercised simultaneously with the Restricted Option settled in equity
while the Restricted Right can be settled in common shares or cash, at the option of the holder.

The fair value of the Restricted Rights is classified as
a liability due to the cash settlement feature. At December 31, 2013, the value of the restricted rights was $nil (2012  $15 million).



|                               |  |                               |           |  |                                  |   |       |                                         |  |  |                   |  |  |                                  |           |  |  |   |       | 
|------------------------------ |  | ----------------------------- | --------- |  | -------------------------------- | - | ----- | --------------------------------------- |  |  | ----------------- |  |  | -------------------------------- | --------- |  |  | - | ----- | 
|                               |  | Restricted Rights Outstanding |           |  | Restricted Rights Exercisable    |  
|Range of Adjusted
Grant Prices |  | NumberOutstanding             |           |  | WeightedAverageExercisePrice (1) |   |       | WeightedRemainingContractualLife(years) |  |  | NumberExercisable |  |  | WeightedAverageExercisePrice (1) |          
|$14.00 - $15.99                |  |                               | 176,844   |  |                                  | $ | 15.28 |                                         |  |  | 0.3               |  |  |                                  | 176,844   |  |  | $ | 15.28 | 
|$16.00 - $16.99                |  |                               | 1,756,626 |  |                                  |   | 16.46 |                                         |  |  | 0.3               |  |  |                                  | 1,756,626 |  |  |   | 16.46 | 
|$17.00 - $19.99                |  |                               | 1,121,944 |  |                                  |   | 17.88 |                                         |  |  | 0.4               |  |  |                                  | 1,121,944 |  |  |   | 17.88 | 
|                               |  |                               |           |  |                                  |   |       |                                         |  |  |                   |  |  |                                  |           |  |  |   |       | 
|                               |  |                               | 3,055,414 |  |                                  | $ | 16.91 |                                         |  |  | 0.3               |  |  |                                  | 3,055,414 |  |  | $ | 16.91 | 
|                               |  |                               |           |  |                                  |   |       |                                         |  |  |                   |  |  |                                  |           |  |  |   |       | 



|(1) | Weighted average exercise price includes reductions of the exercise price for dividends/ distributions paid.
|--- | ------------------------------------------------------------------------------------------------------------

Share Rights

On the date of the conversion to a corporation,
trust unit right holders who did not elect to exchange their trust unit rights for a Restricted Option and Restricted Right, as described above, or who held out-of-the-money trust unit rights were issued Share Rights under the CSRIP in
exchange for their trust unit rights. Share Rights were issued with the same or similar features to trust unit rights including vesting terms, grant prices and the reduction of the exercise price for dividends paid in certain circumstances.



2013 ANNUAL FINANCIAL
STATEMENTS 32



---

|                               |  |                        |          |   |                              |   |       |                      |  |  |                              |   |  |   |       | 
|------------------------------ |  | ---------------------- | -------- | - | ---------------------------- | - | ----- | -------------------- |  |  | ---------------------------- | - |  | - | ----- | 
|                               |  | Year ended December 31 |         
|                               |  | 2013                   |          |   | 2012                         |  
|Share Rights                   |  | NumberofShareRights    |          |   | WeightedAverageExercisePrice |   |       | Number ofShareRights |  |  | WeightedAverageExercisePrice |  
|Outstanding, beginning of year |  |                        | 291,638  |   |                              | $ | 11.99 |                      |  |  | 2,549,112                    |   |  | $ | 23.13 | 
|Exercised (1)                  |  |                        | (136,388 | ) |                              |   | 6.23  |                      |  |  | (214,269                     | ) |  |   | 13.29 | 
|Forfeited                      |  |                        | (114,940 | ) |                              |   | 15.03 |                      |  |  | (2,043,205                   | ) |  |   | 24.40 | 
|                               |  |                        |          |   |                              |   |       |                      |  |  |                              |   |  |   |       | 
|Outstanding, end of year (2)   |  |                        | 40,310   |   |                              | $ | 15.94 |                      |  |  | 291,638                      |   |  | $ | 11.99 | 
|                               |  |                        |          |   |                              |   |       |                      |  |  |                              |   |  |   |       | 
|Exercisable, end of year       |  |                        | 40,310   |   |                              | $ | 15.94 |                      |  |  | 253,665                      |   |  | $ | 11.21 | 
|                               |  |                        |          |   |                              |   |       |                      |  |  |                              |   |  |   |       | 



|(1) | The weighted average share price on share rights exercised in 2013 was $10.56 per share (2012 - $19.54 per share).
|--- | ------------------------------------------------------------------------------------------------------------------

|(2) | Weighted average exercise price includes reductions of the exercise price for dividends/ distributions paid.
|--- | ------------------------------------------------------------------------------------------------------------



|                               |  |                   |        |  |                                  |   |       |                                          |  |  |                   |  |  |                                  |        |  |  |   |       | 
|------------------------------ |  | ----------------- | ------ |  | -------------------------------- | - | ----- | ---------------------------------------- |  |  | ----------------- |  |  | -------------------------------- | ------ |  |  | - | ----- | 
|                               |  | CSRIP Outstanding |        |  | CSRIP Exercisable                |  
|Range of Adjusted
Grant Prices |  | NumberOutstanding |        |  | WeightedAverageExercisePrice (1) |   |       | WeightedRemainingContractualLife (years) |  |  | NumberExercisable |  |  | WeightedAverageExercisePrice (1) |       
|$14.00 - $15.99                |  |                   | 9,810  |  |                                  | $ | 15.03 |                                          |  |  | 0.3               |  |  |                                  | 9,810  |  |  | $ | 15.03 | 
|$16.00 - $16.99                |  |                   | 30,500 |  |                                  |   | 16.24 |                                          |  |  | 0.4               |  |  |                                  | 30,500 |  |  |   | 16.24 | 
|                               |  |                   |        |  |                                  |   |       |                                          |  |  |                   |  |  |                                  |        |  |  |   |       | 
|                               |  |                   | 40,310 |  |                                  | $ | 15.94 |                                          |  |  | 0.4               |  |  |                                  | 40,310 |  |  | $ | 15.94 | 
|                               |  |                   |        |  |                                  |   |       |                                          |  |  |                   |  |  |                                  |        |  |  |   |       | 



|(1) | Weighted average exercise price includes reductions of the exercise price for dividends/ distributions paid.
|--- | ------------------------------------------------------------------------------------------------------------

The remaining Share Rights vest over a three-year period and expire four years after the date of the grant. The exercise price for Share Rights is reduced for
dividends paid in certain circumstances.

There have been no issuance of restricted options, restricted rights or share rights subsequent to
January 1, 2011, and there will be no issuance under these plans in the future.

Long-term retention and incentive plan (LTRIP)

Under the LTRIP, Penn West employees receive cash consideration, that fluctuates based on Penn Wests share price on the TSX. Eligible employees
receive a grant of a specific number of LTRIP awards (each of which notionally represents a common share) that vest over a three-year period with the cash value paid to the employee on each vesting date. If the service requirements are met, the cash
consideration paid is based on the number of LTRIP awards vested and the five-day weighted average trading price of the common shares prior to the vesting date plus dividends declared by Penn West during the period preceding the vesting date.



|                                           |  |                        |            |   |      |  |           |  
|------------------------------------------ |  | ---------------------- | ---------- | - | ---- |  | --------- | -
|                                           |  | Year ended December 31 |           
|LTRIP awards (number of shares equivalent) |  | 2013                   |            |   | 2012 | 
|Outstanding, beginning of year             |  |                        | 1,951,655  |   |      |  | 1,411,676 |  
|Granted                                    |  |                        | 3,102,225  |   |      |  | 1,345,829 |  
|Vested and paid                            |  |                        | (780,228   | ) |      |  | (516,763  | )
|Forfeited                                  |  |                        | (1,459,883 | ) |      |  | (289,087  | )
|                                           |  |                        |            |   |      |  |           |  
|Outstanding, end of year                   |  |                        | 2,813,769  |   |      |  | 1,951,655 |  
|                                           |  |                        |            |   |      |  |           |  

At December 31, 2013, LTRIP obligations of $10 million were classified as a current liability (2012 - $9 million)
included in accounts payable and accrued liabilities and $7 million were classified as a non-current liability (2012 - $5 million) included in other non-current liabilities.



2013 ANNUAL FINANCIAL
STATEMENTS 33



---

Deferred Share Unit (DSU) plan

The DSU plan became effective January 1, 2011, allowing Penn West to grant DSUs in lieu of cash fees to non-employee directors providing a right to
receive, upon retirement, a cash payment based on the volume-weighted-average trading price of the common shares on the TSX for the five trading days immediately prior to the day of payment. Management directors are not eligible to participate in
the DSU Plan. At December 31, 2013, 104,663 DSUs (2012  37,416) were outstanding and $1 million was recorded as a current liability (2012  nil).

Performance Share Unit plan (PSU)

The PSU
plan became effective February 13, 2013, allowing Penn West to grant PSUs to employees of Penn West. Upon meeting the vesting conditions, the employee could receive a cash payment based on performance factors determined by the Board of
Directors and the share price. Members of the Board of Directors are not eligible for the PSU Plan.



|                                         |  |                        |           |   |      |  |   | 
|---------------------------------------- |  | ---------------------- | --------- | - | ---- |  | - | 
|                                         |  | Year ended December 31 |          
|PSU awards (number of shares equivalent) |  | 2013                   |           |   | 2012 | 
|Outstanding, beginning of year           |  |                        |          |   |      |  |  | 
|Granted                                  |  |                        | 1,544,429 |   |      |  |  | 
|Vested                                   |  |                        | (494,140  | ) |      |  |  | 
|Forfeited                                |  |                        | (80,566   | ) |      |  |  | 
|                                         |  |                        |           |   |      |  |   | 
|Outstanding, end of year                 |  |                        | 969,723   |   |      |  |  | 
|                                         |  |                        |           |   |      |  |   | 

The PSU obligation is classified as a liability due to the cash settlement feature. The change in the fair value of
outstanding PSU awards is charged to income based on the common share price at the end of each reporting period plus accumulated dividends multiplied by a performance factor determined by the Board of Directors. At December 31, 2013, $1 million
(December 31 2012  nil) was classified as a current liability included in accounts payable and accrued liabilities and $2 million was classified as a non-current liability (December 31, 2012  nil) included in other non-current
liabilities.

Share-based compensation

Share-based
compensation is based on the fair value of the options at the time of grant under the Option Plan and the CSRIP, which is amortized over the remaining vesting period on a graded vesting schedule. Share-based compensation under the LTRIP, DSU and PSU
is based on the fair value of the awards outstanding at the reporting date and is amortized based on a graded vesting schedule. Share-based compensation consisted of the following:



|                         |  |                        |    |  |      |   |     |  
|------------------------ |  | ---------------------- | -- |  | ---- | - | --- | -
|                         |  | Year ended December 31 |   
|                         |  | 2013                   |    |  | 2012 |  
|Options                  |  | $                      | 15 |  |      | $ | 21  |  
|Restricted Options       |  |                        |   |  |      |   | 6   |  
|Restricted Rights        |  |                        |   |  |      |   | (45 | )
|Share Rights             |  |                        |   |  |      |   |    |  
|LTRIP                    |  |                        | 13 |  |      |   | 8   |  
|DSU                      |  |                        | 1  |  |      |   |    |  
|PSU                      |  |                        | 3  |  |      |   |    |  
|                         |  |                        |    |  |      |   |     |  
|Share-based compensation |  | $                      | 32 |  |      | $ | (10 | )
|                         |  |                        |    |  |      |   |     |  

During 2013, $6 million of PSU expense was accelerated and reclassified from share-based compensation to restructuring expense
in the Consolidated Statement of Income (Loss) as it related to the severance of former executives.

The share price used in the fair value calculation of
the LTRIP, Restricted Rights, PSU and DSU obligations at December 31, 2013 was $8.87 (2012  $10.80).



2013 ANNUAL FINANCIAL
STATEMENTS 34



---

A Black-Scholes option-pricing model was used to determine the fair value of options granted under the Option
Plan with the following fair value per option and weighted average assumptions:



|                                                  |  |                        |      |   |      |   |      |  
|------------------------------------------------- |  | ---------------------- | ---- | - | ---- | - | ---- | -
|                                                  |  | Year ended December 31 |     
|                                                  |  | 2013                   |      |   | 2012 |  
|Average fair value of options granted (per share) |  | $                      | 1.03 |   |      | $ | 2.37 |  
|Expected life of restricted options (years)       |  |                        | 4.0  |   |      |   | 4.0  |  
|Expected volatility (average)                     |  |                        | 32.4 | % |      |   | 32.9 | %
|Risk-free rate of return (average)                |  |                        | 1.5  | % |      |   | 1.3  | %
|Dividend yield                                    |  |                        | 6.5  | % |      |   | 7.8  | %

Employee retirement savings plan

Penn West has an employee retirement savings plan (the savings plan) for the benefit of all employees. Under the savings plan, employees may elect
to contribute up to 10 percent of their salary and Penn West matches these contributions at a rate of $1.50 for each $1.00 of employee contribution. Both the employees and Penn Wests contributions are used to acquire Penn West common
shares or are placed in low-risk investments. Shares are purchased in the open market at prevailing market prices.

15. Dividends

Dividends are paid quarterly at the discretion of the Board of Directors and are deducted from retained earnings as declared.

In 2013, Penn West paid dividends of $458 million or $0.95 per share (2012$512 million or $1.08 per share).

On January 15, 2014, Penn West paid its fourth quarter 2013 dividend of $0.14 per share totalling $68 million. On March 6, 2014, Penn West declared
its first quarter 2014 dividend of $0.14 per share to be paid on April 15, 2014 to shareholders of record at the close of business on March 31, 2014.

16. Per share amounts

The number of incremental shares
included in diluted earnings per share is computed using the average volume-weighted market price of shares for the period. In addition, contracts that could be settled in cash or shares are assumed to be settled in shares if share settlement is
more dilutive.



|                                      |  |                        |      |   |      |   |     | 
|------------------------------------- |  | ---------------------- | ---- | - | ---- | - | --- | 
|                                      |  | Year ended December 31 |     
|                                      |  | 2013                   |      |   | 2012 |  
|Net income (loss)  basic and diluted |  | $                      | (838 | ) |      | $ | 149 | 
|                                      |  |                        |      |   |      |   |     | 

The weighted average number of shares used to calculate per share amounts is as follows:



|                                           |  |                        |             |  |      |  |             | 
|------------------------------------------ |  | ---------------------- | ----------- |  | ---- |  | ----------- | 
|                                           |  | Year ended December 31 |            
|                                           |  | 2013                   |             |  | 2012 | 
|Basic                                      |  |                        | 485,814,089 |  |      |  | 475,603,963 | 
|Dilutive impact of share-based instruments |  |                        |            |  |      |  | 204,019     | 
|                                           |  |                        |             |  |      |  |             | 
|Diluted                                    |  |                        | 485,814,089 |  |      |  | 475,807,982 | 
|                                           |  |                        |             |  |      |  |             | 

For 2013, 18.0 million shares (2012  25.3 million) that would be issued under the Option Plan and CSRIP were
excluded in calculating the weighted average number of diluted shares outstanding as they were considered anti-dilutive.



2013 ANNUAL FINANCIAL
STATEMENTS 35



---

17. Changes in non-cash working capital (increase) decrease



|                                         |  |                        |      |   |      |   |      |  
|---------------------------------------- |  | ---------------------- | ---- | - | ---- | - | ---- | -
|                                         |  | Year ended December 31 |     
|                                         |  | 2013                   |      |   | 2012 |  
|Accounts receivable                      |  | $                      | 101  |   |      | $ | 122  |  
|Other current assets                     |  |                        | 7    |   |      |   | 17   |  
|Deferred funding obligation              |  |                        | 19   |   |      |   | 34   |  
|Accounts payable and accrued liabilities |  |                        | (120 | ) |      |   | (304 | )
|                                         |  |                        |      |   |      |   |      |  
|                                         |  | $                      | 7    |   |      | $ | (131 | )
|                                         |  |                        |      |   |      |   |      |  
|Operating activities                     |  | $                      | 51   |   |      | $ | 37   |  
|Investing activities                     |  |                        | (44  | ) |      |   | (168 | )
|                                         |  |                        |      |   |      |   |      |  
|                                         |  | $                      | 7    |   |      | $ | (131 | )
|                                         |  |                        |      |   |      |   |      |  
|                                         |  |                       
|Interest paid                            |  | $                      | 177  |   |      | $ | 204  |  
|Income taxes recovered                   |  | $                      | 7    |   |      | $ |     |  
|                                         |  |                        |      |   |      |   |      |  

18. Capital management

Penn West manages its capital to provide a flexible structure to support capital programs, dividend policies, production maintenance and other operational
strategies. Attaining a strong financial position enables the capture of business opportunities and supports Penn Wests business strategy of providing shareholder return through a combination of growth and yield.

Penn West defines capital as the sum of shareholders equity and long-term debt. Shareholders equity includes shareholders capital, other
reserves and retained earnings (deficit). Long-term debt includes bank loans and senior unsecured notes.

Management continuously reviews Penn Wests
capital structure to ensure the objectives and strategies of Penn West are being met. The capital structure is reviewed based on a number of key factors including, but not limited to, current market conditions, hedging positions, trailing and
forecast debt to capitalization ratios, debt to EBITDA and other economic risk factors. Currently, dividends are paid quarterly at the discretion of the Board of Directors.

The Company is subject to certain quarterly financial covenants under its unsecured, syndicated credit facility and the senior unsecured notes. These
financial covenants are typical for senior unsecured lending arrangements and include senior debt and total debt to EBITDA and senior debt and total debt to capitalization as defined in Penn Wests lending agreements. As at December 31,
2013, the Company was in compliance with all of its financial covenants.



2013 ANNUAL FINANCIAL
STATEMENTS 36



---

|                                                  |  |                        |        |   |      |   |        |  
|------------------------------------------------- |  | ---------------------- | ------ | - | ---- | - | ------ | -
|                                                  |  | Year ended December 31 |       
|(millions, except ratio amounts)                  |  | 2013                   |        |   | 2012 |  
|Components of capital                             |  |                        |        |   |      |   |        |  
|Shareholders equity                              |  | $                      | 7,710  |   |      | $ | 8,820  |  
|Long-term debt                                    |  | $                      | 2,458  |   |      | $ | 2,690  |  
|                                                  |  |                        |        |   |      |   |        |  
|Ratios                                            |  |                        |        |   |      |   |        |  
|Senior debt to EBITDA (1)                         |  |                        | 2.2    |   |      |   | 2.1    |  
|Total debt to EBITDA (2)                          |  |                        | 2.2    |   |      |   | 2.1    |  
|Senior debt to capitalization (3)                 |  |                        | 24     | % |      |   | 23     | %
|Total debt to capitalization (4)                  |  |                        | 24     | % |      |   | 23     | %
|Priority debt to consolidated tangible assets (5) |  |                        |       |   |      |   |       |  
|                                                  |  |                        |        |   |      |   |        |  
|EBITDA (6)                                        |  | $                      | 1,139  |   |      | $ | 1,291  |  
|                                                  |  |                       
|Credit facility debt and senior notes             |  | $                      | 2,458  |   |      | $ | 2,690  |  
|Letters of credit                                 |  |                        | 7      |   |      |   | 5      |  
|                                                  |  |                        |        |   |      |   |        |  
|Senior debt and total debt                        |  |                        | 2,465  |   |      |   | 2,695  |  
|Total shareholders equity                        |  |                        | 7,710  |   |      |   | 8,820  |  
|                                                  |  |                        |        |   |      |   |        |  
|Total capitalization                              |  | $                      | 10,175 |   |      | $ | 11,515 |  
|                                                  |  |                        |        |   |      |   |        |  



|(1) | Less than 3:1 and not to exceed 3.5:1 in the event of a material acquisition.
|--- | -----------------------------------------------------------------------------

|(2) | Less than 4:1.
|--- | --------------

|(3) | Not to exceed 50 percent except in the event of a material acquisition when the ratio is not to exceed 55 percent.
|--- | ------------------------------------------------------------------------------------------------------------------

|(4) | Not to exceed 55 percent except in the event of a material acquisition when the ratio is not to exceed 60 percent.
|--- | ------------------------------------------------------------------------------------------------------------------

|(5) | Priority debt not to exceed 15% of consolidated tangible assets.
|--- | ----------------------------------------------------------------

|(6) | EBITDA is calculated in accordance with Penn Wests lending agreements wherein unrealized risk management and impairment provisions are excluded.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------

19. Commitments and contingencies

Penn West is committed
to certain payments over the next five calendar years and thereafter as follows:



|                          |  |      |     |  |      |   |     |      |  |   |      |  |  |      |     |  |            |   |     |  |  |   |     | 
|------------------------- |  | ---- | --- |  | ---- | - | --- | ---- |  | - | ---- |  |  | ---- | --- |  | ---------- | - | --- |  |  | - | --- | 
|                          |  | 2014 |     |  | 2015 |   |     | 2016 |  |   | 2017 |  |  | 2018 |     |  | Thereafter |  
|Long-term debt            |  | $    | 64  |  |      | $ | 265 |      |  | $ | 631  |  |  | $    | 258 |  |            | $ | 474 |  |  | $ | 766 | 
|Transportation            |  |      | 55  |  |      |   | 73  |      |  |   | 61   |  |  |      | 57  |  |            |   | 55  |  |  |   | 306 | 
|Power infrastructure      |  |      | 14  |  |      |   | 14  |      |  |   | 14   |  |  |      | 14  |  |            |   | 14  |  |  |   | 11  | 
|Drilling rigs             |  |      | 11  |  |      |   | 15  |      |  |   | 11   |  |  |      | 6   |  |            |   |    |  |  |   |    | 
|Purchase obligations      |  |      | 5   |  |      |   | 5   |      |  |   | 1    |  |  |      | 1   |  |            |   | 1   |  |  |   |    | 
|Interest obligations      |  |      | 138 |  |      |   | 127 |      |  |   | 107  |  |  |      | 84  |  |            |   | 63  |  |  |   | 84  | 
|Office lease              |  |      | 58  |  |      |   | 58  |      |  |   | 57   |  |  |      | 54  |  |            |   | 54  |  |  |   | 347 | 
|Decommissioning liability |  | $    | 75  |  |      | $ | 72  |      |  | $ | 70   |  |  | $    | 84  |  |            | $ | 86  |  |  | $ | 216 | 

Penn Wests syndicated credit facility is due for renewal on June 30, 2016. If Penn West is not successful in
renewing or replacing the facility, it could enter other facilities including term bank loans. In addition, Penn West has an aggregate of $2.1 billion in senior notes maturing between 2014 and 2025. Penn West continuously monitors its credit metrics
and maintains positive working relationships with its lenders, investors and agents.



2013 ANNUAL FINANCIAL
STATEMENTS 37



---

Penn Wests commitments relate to the following:



| |  |  | Transportation commitments relate to costs for future pipeline access.
| | - |  | ----------------------------------------------------------------------



| |  |  | Power infrastructure commitments pertain to electricity contracts.
| | - |  | ------------------------------------------------------------------



| |  |  | Drilling rigs are contracts held with service companies to ensure Penn West has access to specific drilling rigs at the required times.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Purchase obligations relate to Penn Wests commitments for CO2 purchases and processing fees related to Penn Wests interests in the Weyburn CO2 miscible flood property in S.E. Saskatchewan. These amounts
represent estimated commitments of $8 million for CO2 purchases and $5 million for processing fees related to Penn Wests interest in the Weyburn Unit.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Interest obligations are the estimated future interest payments related to Penn Wests debt instruments.
| | - |  | --------------------------------------------------------------------------------------------------------



| |  |  | Office leases pertain to total leased office space. A portion of this office space has been sub-leased to other parties to minimize Penn Wests net exposure under the leases. The future office lease commitments
above will be reduced by sublease recoveries totalling $306 million. For 2013, lease cost, net of recoveries totalled $30 million.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The decommissioning liability represents the inflated, discounted future reclamation and abandonment costs that are expected to be incurred over the life of the properties.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Penn West is involved in various litigation and claims in the normal course of business and records provisions for claims as required.

20. Related-party transactions

Operating entities

The consolidated financial statements include the results of Penn West Petroleum Ltd. and its wholly-owned subsidiaries, notably the Penn West
Petroleum Partnership. Transactions and balances between Penn West Petroleum Ltd. and all of its subsidiaries are eliminated upon consolidation.

Compensation of key management personnel

Key management
personnel include the President and Chief Executive Officer, Executive Vice Presidents, Senior Vice-Presidents and the Board of Directors. The Human Resources & Compensation Committee makes recommendations to the Board of Directors who
approves the appropriate remuneration levels for management based on performance and current market trends. Compensation levels of the Board of Directors are recommended by the Corporate Governance committee of the Board. The remuneration of the
directors and key management personnel of Penn West during the year is below.



|                             |  |                        |    |  |      |   |    |  
|---------------------------- |  | ---------------------- | -- |  | ---- | - | -- | -
|                             |  | Year ended December 31 |   
|                             |  | 2013                   |    |  | 2012 |  
|Salary and employee benefits |  | $                      | 4  |  |      | $ | 9  |  
|Termination benefits         |  |                        | 8  |  |      |   | 6  |  
|Share-based payments (1)     |  |                        | 11 |  |      |   | (6 | )
|                             |  |                        |    |  |      |   |    |  
|                             |  | $                      | 23 |  |      | $ | 9  |  
|                             |  |                        |    |  |      |   |    |  



|(1) | Includes changes in the fair value of Restricted Rights and PSUs and non-cash charges related to the Option Plan, CSRIP, and DSU for key management personnel.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------

21. Supplemental Items

In the consolidated financial
statements, compensation costs are included in both operating and general and administrative expenses. For 2013, employee compensation costs of $114 million (2012 - $139 million) were included in operating costs and $132 million (2012 - $176
million) were included in general and administrative expenses.



2013 ANNUAL FINANCIAL
STATEMENTS 38



---

22. Subsequent event

Subsequent to December 31, 2013, Penn West entered into a purchase and sales agreement to dispose of non-core assets located in central and southern
Alberta for proceeds of $175 million, prior to closing adjustments, with average production of approximately 6,700 boe per day. This disposition is anticipated to close on March 14, 2014. Penn West plans to use the proceeds from the disposition
to repay outstanding advances under its credit facility.



2013 ANNUAL FINANCIAL
STATEMENTS 39