Filed by LinnCo, LLC and Linn Energy, LLC

Commission File Nos. 001-35695 and 000-51719

Pursuant to Rule 425 Under the Securities Act of 1933

And Deemed Filed Pursuant to Rule 14a-12

Under the Securities Exchange Act of 1934

Subject Company: Berry Petroleum Company

Commission File No. 001-09735

Merger Overview February 21, 2013

Forward-Looking Statements and Risk Factors This presentation contains forward-looking statements concerning the proposed transactions, its financial and business impact, management’s beliefs and objectives with respect thereto, and management’s current expectations for future operating and financial performance, based on assumptions currently believed to be valid. Forward-looking statements are all statements other than statements of historical facts. The words “anticipates,” “may,” “can,” “plans,” “believes,” “estimates,” “expects,” “projects,” “intends,” “likely,” “will,” “should,” “to be,” and any similar expressions or other words of similar meaning are intended to identify those assertions as forward-looking statements. It is uncertain whether the events anticipated will transpire, or if they do occur what impact they will have on the results of operations and financial condition of LINN, LinnCo, Berry or of the combined company. These forward-looking statements involve significant risks and uncertainties that could cause actual results to differ materially from those anticipated, including but not limited to the ability of the parties to satisfy the conditions precedent and consummate the proposed transactions, the timing of consummation of the proposed transactions, the ability of the parties to secure regulatory approvals in a timely manner or on the terms desired or anticipated, the ability of LINN to integrate the acquired operations, the ability to implement the anticipated business plans following closing and achieve anticipated benefits and savings, and the ability to realize opportunities for growth. Other important economic, political, regulatory, legal, technological, competitive and other uncertainties are identified in the documents filed with the Securities and Exchange Commission (the “SEC”) by LINN and LinnCo from time to time, including their respective Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K. The forward-looking statements including in this press release are made only as of the date hereof. Neither LINN nor LinnCo undertakes any obligation to update the forward-looking statements included in this press release to reflect subsequent events or circumstances. The market data in this presentation has been prepared as of February 20, 2013, except otherwise noted.

LINN Energy’s mission is to acquire, develop and maximize cash flow from a growing portfolio of long-life oil and natural gas assets.

Transaction Overview Consideration LinnCo to acquire Berry for 1.25 common shares of LinnCo (equivalent to total consideration of $46.24 per Berry shares based on LinnCo closing price on February 20, 2013) Transaction Value ~$4.3 billion (includes assumed debt) Premium ~20% to Berry’s closing price on February 20, 2013 Key Conditions Subject to shareholder / unitholder approval of Berry, LINN Energy, and LinnCo Customary regulatory approvals and conditions Timing Closing expected by the end of Q2’13 4

5 LinnCo, LLC (Nasdaq:LNCO) and LINN Energy, LLC (Nasdaq:LINE) announced the signing of a definitive merger agreement to acquire all of Berry Petroleum Company’s (NYSE:BRY) shares outstanding Total enterprise value of approximately $4.3 billion including $1.7 billion of assumed debt LinnCo has agreed to issue 1.25 common shares for each common share of Berry Consideration to be received by Berry shareholders is valued at $46.24 per Berry share based on LinnCo’s closing price as of February 20, 2013  Represents a premium of approximately 20% to Berry’s closing price on February 20, 2013 and approximately 23% to its one-month average price at that date Represents the first ever acquisition of a public C-Corp by an upstream LLC or MLP and the first acquisition by LinnCo since its October 2012 initial public offering Acquisition will increase LINN’s estimated proved reserves and production by approximately 34% and 30%, respectively Expected to be immediately accretive to distributable cash flow per unit of approximately $0.40 at LINN (first twelve months) Immediately after the merger, LinnCo will contribute Berry assets to LINN Energy in exchange for LINN Energy units Will maintain one LinnCo share to one LINN Energy unit ratio Transaction expected to close end of the second quarter 2013 Transaction Details

Strategic Rationale 6 Excellent MLP Assets Low decline rate of ~15% and reserve life of >18 years Proved reserves of ~1.65 Tcfe Current production of ~40,000 Boe/d Significantly Improves Credit Metrics 100% stock-for-stock transaction significantly improves leverage Meaningful step to investment grade credit rating Geographic Synergies California, Permian and East Texas assets compliment LINN’s existing positions in these areas o Following closing, LINN will be the 5 th largest producer in California Attractive entry into new core area in the Uinta Basin Liquids Focused (1) ~75% liquids, high-margin assets with excellent operating margins Increases liquids exposure to 54% of proved reserves from 46%, as of December 31, 2012 o Decreases LINN’s NGL exposure (as a % of total production) Strategic-Fit With LINN Energy Expected to be immediately accretive to distributable cash flow per unit by ~$0.40 per unit (first twelve months) o Potential for additional operational synergies not factored into deal Tax efficient for both LinnCo and Berry shareholders (1) As of December 31, 2012, pro forma for announced merger.

MLP and Independent E&P Rankings Note: Market data as of February 20, 2013 (LINE and LNCO closing price of $36.65 and $36.99, respectively). Source: Bloomberg. (1) Pro forma for merger. LINN is one of the largest MLP and independent E&P companies 7 th largest public MLP/LLC 11 largest domestic independent oil & natural gas company 7 Rank Master Limited Partnership Enterprise Value ($MM) Rank Independent E&P Enterprise Value ($MM) 1. Enterprise Products Partners $60,375 1. ConocoPhillips $89,597 2. Kinder Morgan Energy Partners $46,756 2. Occidental Petroleum Corp. $64,934 3. Energy Transfer Equity $38,964 3. Anadarko Petroleum Corp. $52,281 4. Williams Partners $26,732 4. Apache Corp. $41,773 5. Plains All American Pipeline $24,767 5. EOG Resources Inc. $39,943 6. Energy Transfer Partners $22,574 6. Chesapeake Energy Corp. $34,955 7. LINN Energy LLC (Pro Forma) $18,943 7. Marathon Oil Corporation $26,927 8. ONEOK Partners $17,173 8. Devon Energy Corporation $24,449 9. Enbridge Energy Partners $14,874 9. Noble Energy Inc. $22,575 10. El Paso Pipeline Partners $13,363 10. Pioneer Natural Resources Co. $19,920 11. Magellan Midstream Partners $11,658 11. LINN Energy LLC (Pro Forma) $18,943 12. Markwest Energy Partners $9,470 12. Continental Resources Inc. $17,937 13. Boardwalk Pipeline Partners $8,848 13. Range Resources Corp. $14,274 14. Buckeye Partners $7,234 14. Southwestern Energy Co. $13,163 15. Sunoco Logistics Partners $6,851 15. Cabot Oil & Gas Corp. $12,312 16. Access Midstream Partners $6,667 16. Concho Resources Inc. $11,890 17. Western Gas Partners $6,569 17. Murphy Oil Corp. $11,241 18. Amerigas Partners $6,448 18. EQT Corp. $11,066 19. Cheniere Energy Partners $5,770 19. Plains Exploration & Production $10,094 20. Regency Energy Partners $5,655 20. Denbury Resources Inc. $10,033 21. Targa Resources Partners $5,404 21. Cobalt International Energy $9,155 22. Nustar Energy LP $5,228 22. Sandridge Energy Inc. $8,803 23. Teekay LNG Partners $5,159 23. QEP Resources Inc. $8,595 24. Copano Energy LLC $4,521 24. Whiting Petroleum Corp. $7,298 25. Genesis Energy LP $4,435 25. Newfield Exploration Co. $6,546 th

LINN Energy – A Premier U.S. Independent E&P Company 8 Daily Production of E&P Peers (1) Proved Reserves of E&P Peers (1) Increases LINN’s size and scale among leading, independent E&P companies Now one of the largest producers of hydrocarbons in the United States Source: Company press releases and SEC filings. (1) Reserves and production data includes most recent information released by listed companies.

Overview of Berry Petroleum  High Quality Oil Portfolio Proved Reserves (MMBoe) Q4'12 Production (MBoe/d) Berry Asset Map 9 Source: Berry Petroleum’s Q4’12 press release. Uinta Basin Piceance Basin California Permian East Texas Corporate Headquarters (Denver) TX CA CO UT ~40 Mboe/d ~75% Liquids Berry Operations Oil Natural Gas Permian

LINN Energy Operational Overview Note: All operational and reserve data as of December 31, 2012, pro forma for merger. Uinta Basin Piceance Basin East Texas California Permian Basin Corporate Headquarters (Houston) NM TX KS ND OK CA WY UT CO LINN Operations Recently Acquired Assets IL LA MI 10

Meaningful Increase to Reserves and Production Note: Reserve data as of December 31, 2012, and production data represents the quarter ending December 31, 2012. 11 Proved Reserves (Bcfe) Q4’12 Production (MMcfe/d)

Permian Basin Operational Synergies 12 Significant operational and field synergies Almost doubles LINN’s Wolfberry inventory ~725 proved drilling locations (pro forma for transaction (1) ) Overview of Berry’s Permian assets (2) Total of ~61,000 net acres in the Permian o 75% NRI Wolfberry drilling inventory of ~325 proved locations on 40’s and over 600 potential locations on 20’s Upside potential from de-risking deeper formations and 20-acre downspacing Permian Asset Map Recently Acquired Areas Wolfberry Trend LINN Fields (1) Includes LINE and BRY’s Wolfberry drilling inventory of approximately 400 and 325, respectively. (2) Source: Berry Petroleum Company’s “February 2013 Company Update”. TX NM Eddy Lea Hockley Dawson Andrews Howard Ector Winkler Upton Schieicher Pecos Crane Ward Crockett Midland Martin Garza Shackleford Stonewall Irion Borden

Note: Data reflects continuing operations only. The results of the Company’s Appalachian Basin and Mid Atlantic operations are classified as discontinued. (1) As of December 31, 2012, pro forma (“PF”) for announced 2013 merger. (2) Pro forma estimate based on Q4’12 average daily production for LINN Energy and Berry Petroleum. (3) Historical LINE distributions based on date payable for years 2006 - 2012. (4) Based on LINE’s estimated Q3’13 distribution of $0.77 per unit on an annualized basis (subject to Board approval). History of Strong Performance and Growth 13 Reserves  (Bcfe) Production (MMcfe/d) Annual Distributions ($ per unit) (3) Total Return

The U.S. Securities and Exchange Commission (“SEC”) permits oil and gas companies, in their filings with the SEC, to disclose only resources that qualify as "reserves" as defined by SEC rules. We use terms describing hydrocarbon quantities in this presentation including “inventory” and “resource potential” that the SEC’s guidelines prohibit us from including in filings with the SEC. These estimates are by their nature more speculative than estimates of reserves prepared in accordance with SEC definitions and guidelines and accordingly are substantially less certain. Investors are urged to consider closely the reserves disclosures in LINN Energy’s Annual Report on Form 10-K for the year ended December 31, 2011, available from LINN Energy at 600 Travis, Suite 5100, Houston, Texas 77002 (Attn: Investor Relations). You can also obtain this report from the SEC by calling 1-800-SEC-0330 or from the SEC’s website at www.sec.gov. In this communication, the terms other than “proved reserves” refer to the Company's internal estimates of hydrocarbon volumes that may be potentially discovered through exploratory drilling or recovered with additional drilling or recovery techniques. Those estimates may be based on economic assumptions with regard to commodity prices that may differ from the prices required by the SEC to be used in calculating proved reserves. In addition, these hydrocarbon volumes may not constitute reserves within the meaning of the Society of Petroleum Engineer's Petroleum Resource Management System or the SEC’s oil and gas disclosure rules. Unless otherwise stated, hydrocarbon volume estimates have not been risked by Company management. Factors affecting ultimate recovery include the scope of our ongoing drilling program, which will be directly affected by the availability of capital, drilling and production costs, commodity prices, availability of drilling services and equipment, drilling results, lease expirations, transportation constraints, regulatory approvals and other factors, and actual drilling results, including geological and mechanical factors affecting recovery rates. Accordingly, actual quantities that may be ultimately recovered from the Company's interests may differ substantially from the Company’s estimates of potential resources. In addition, our estimates of reserves may change significantly as development of the Company's resource plays and prospects provide additional data. 14

Additional Information about the Proposed Transactions and Where to Find It

In connection with the proposed transactions, LinnCo intends to file with the SEC a registration statement on Form S-4 that will include a joint proxy statement of LinnCo, LINN and Berry that also constitutes a prospectus of LinnCo. Each of Berry, LINN and LinnCo also plan to file other relevant documents with the SEC regarding the proposed transactions. INVESTORS ARE URGED TO READ THE JOINT PROXY STATEMENT/PROSPECTUS AND OTHER RELEVANT DOCUMENTS FILED WITH THE SEC IF AND WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. You may obtain a free copy of the joint proxy statement/prospectus (if and when it becomes available) and other relevant documents filed by Berry, LINN and LinnCo with the SEC at the SEC’s website at www.sec.gov. You may also obtain these documents by contacting LINN’s and LinnCo’s Investor Relations department at (281) 840-4193 or via e-mail at ir@linnenergy.com or by contracting Berry’s Investor Relations department at (866) 472-8279 or via email at ir@bry.com.

Participants in the Solicitation

Berry, LINN and LinnCo and their respective directors and executive officers and other members of management and employees may be deemed to be participants in the solicitation of proxies in respect of the proposed transactions. Information about LINN’s directors and executive officers is available in LINN’s proxy statement dated March 12, 2012, for its 2012 Annual Meeting of Unitholders. Information about LinnCo’s directors and executive officers is available in LinnCo’s Registration Statement on Form S-1 dated June 25, 2012, as amended, with respect to its initial public offering of common shares. Information about Berry’s directors and executive officers is available in Berry’s proxy statement dated April 6, 2012, for its 2012 Annual Meeting of Stockholders. Other information regarding the participants in the proxy solicitations and a description of their direct and indirect interests, by security holdings or otherwise, will be contained in the joint proxy statement/prospectus and other relevant materials to be filed with the SEC regarding the proposed transactions when they become available. Investors should read the joint proxy statement/prospectus carefully when it becomes available before making any voting or investment decisions. You may obtain free copies of these documents from Berry, LINN or LinnCo using the sources indicated above.

This document shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the U.S. Securities Act of 1933, as amended.

Cautionary Note Regarding Forward-Looking Statements

This document contains forward-looking statements concerning the proposed transactions, its financial and business impact, management’s beliefs and objectives with respect thereto, and management’s current expectations for future operating and financial performance, based on assumptions currently believed to be valid. Forward-looking statements are all statements other than statements of historical facts. The words “anticipates,” “may,” “can,” “plans,” “believes,” “estimates,” “expects,” “projects,” “intends,” “likely,” “will,” “should,” “to be,” and any similar expressions or other words of similar meaning are intended to identify those assertions as forward-looking statements. It is uncertain whether the events anticipated will transpire, or if they do occur what impact they will have on the results of operations and financial condition of LINN, LinnCo, Berry or of the combined company. These forward-looking statements involve significant risks and uncertainties that could cause actual results to differ materially from those anticipated, including but not limited to the ability of the parties to satisfy the conditions precedent and consummate the proposed transactions, the timing of consummation of the proposed transactions, the ability of the parties to secure regulatory approvals in a timely manner or

on the terms desired or anticipated, the ability of LINN to integrate the acquired operations, the ability to implement the anticipated business plans following closing and achieve anticipated benefits and savings, and the ability to realize opportunities for growth. Other important economic, political, regulatory, legal, technological, competitive and other uncertainties are identified in the documents filed with the SEC by Berry, LINN and LinnCo from time to time, including their respective Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K. The forward-looking statements including in this document are made only as of the date hereof. None of Berry, LINN nor LinnCo undertakes any obligation to update the forward-looking statements included in this document to reflect subsequent events or circumstances.