I
<br /> beneficially owned by JHS solely in his capacity as a controlling person,sole director and executive officer of the
<br /> Phoebe Snow Foundation,Inc.("PSF"). Shared voting and dispositive power as to 7,572,548 of the shares reported
<br /> as beneficially owned may be deemed to be beneficially owned by JHS solely in his capacity as one of three
<br /> controlling persons of SPO Advisory Corp. Sole voting and dispositive power of PSF as to 63,000 of the shares
<br /> reported as beneficially owned is exercised through its controlling person,sole director and executive officer,JHS.
<br /> Of the shares reported as beneficially owned,600 shares are held by EHM in his individual retirement account
<br /> which is self-directed. Shared voting and dispositive power as to 7,572,548 of the shares reported as beneficially
<br /> owned may be deemed to be beneficially owned by EHM solely in his capacity as one of three controlling persons
<br /> of SPO Advisory Corp. Shared voting and dispositive power as to 7,572,548 of the shares reported as beneficially
<br /> owned may be deemed to be beneficially owned by EJW solely in his capacity as one of three controlling persons of
<br /> SPO Advisory Corp.The principal business address of all reporting persons is: 591 Redwood Highway, Suite 3215,
<br /> Mill Valley,California 94941. SPO,SPO Advisory Partners and SF Advisory Partners are Delaware limited
<br /> partnerships. SFP is a California limited partnership. SPO Advisory Corp.and PSF are Delaware corporations.JHS,
<br /> EHM and EJW are all citizens of the United States of America.
<br /> (4) The equity ownership reported in this table is based on the reporting persons'most recently available
<br /> Schedule 13G dated December 31,2014 and filed on February 17,2015 filed by Berkshire Hathaway Inc.,3555
<br /> Farnam Street,Omaha,Nebraska 68131 (`BH"),Warren E.Buffett,3555 Farnam Street,Omaha Nebraska 68131
<br /> ("WB"),National Indemnity Company,3024 Harney Street,Omaha Nebraska 68131 ("NIC"),GEICO Corporation,
<br /> One GEICO Plaza,Washington DC 20076("GEICO"),Government Employees Insurance Company,One GEICO
<br /> Plaza,Washington DC 20076("GEIC"),GEICO Advantage Insurance.Company,One GEICO Plaza,Washington
<br /> DC 20076("GAIC"),GEICO Casualty Company,One GEICO Plaza,Washington DC 20076("GCC"),GEICO
<br /> Choice Insurance Company,One GEICO Plaza,Washington DC 20076("GCIC"),GEICO Secure Insurance
<br /> Company("GSIC"),The Buffalo News Drivers/Distributors Pension Plan,One News Plaza,Buffalo New York
<br /> 14240("BNDDPP"),Buffalo News Editorial Pension Plan,One News Plaza,Buffalo,New York 14240("BNEPP"),
<br /> BNSF Master Retirement Trust,do BNSF Railway,2650 Lou Menk Drive,Fort Worth,Texas 76131 ("BNSF"),
<br /> Buffalo News Mechanical Pension Plan("BNMPP"),Buffalo News Office Pension Plan("BNOPP"),Flight Safety
<br /> International Inc.Retirement Income Plan("FSI"),Fruit of the Loom Pension Trust("FLPT"),GEICO Corporation
<br /> Pension Plan Trust("GCPPT"),General Re Corporation Employment Retirement Trust("GRCERT"),Johns
<br /> Manville Corporation Master Pension Trust("JMCMPT"),Benjamin Moore&Co.Revised Retirement Income Plan
<br /> (`BMCRRIP")and Lubrizol Master Trust Pension,do The Lubrizol Corporation,29400 Lakeland Blvd.,Wickliffe,
<br /> Ohio 44092("LMTP").The 13G reports as follows:WB and BH have shared voting and dispositive power over
<br /> 6,198,237 of the reported shares;NIC and GEICO have shared voting and dispositive power over 4,283,955 of the
<br /> reported shares;GEIC has shared voting and dispositive power over 1,749,392 of the reported shares;GAIC has
<br /> shared voting and dispositive power over 408,468 of the reported shares;GCC has shared voting and dispositive
<br /> power over 1,726,829 of the reported shares;GCIC has shared voting and dispositive power over 212,105 of the
<br /> reported shares;GSIC has shared voting and dispositive power over 187,161 of the reported shares;BNDDPP has
<br /> shared voting and dispositive power over 6,800 of the reported shares;BNEPP has shared voting and dispositive
<br /> power over 9,000 of the reported shares;BNSF has shared voting and dispositive power over 804,215 of the
<br /> reported shares;BNMPP has shared voting and dispositive power over 16,000 of the reported shares;BNOPP has
<br /> shared voting and dispositive power over 5,000 of the reported shares;FSI has shared voting and dispositive power
<br /> over 156,067 of the reported shares;FLPT has shared voting and dispositive power over 50,000 of the reported
<br /> shares;GCPPT has shared voting and dispositive power over 100,000 of the reported shares;GRCERT has shared
<br /> voting and dispositive power over 317,000 of the reported shares;JMCMPT has shared voting and dispositive power
<br /> over 100,000 of the reported shares;BMCRRIP has shared voting and dispositive power over 200 of the reported
<br /> shares;and LMTP has shared voting and dispositive power over 350,000 of the reported shares.
<br /> CURRENT OFFICERS
<br /> Thomas M. Rutledge President and Chief Executive Officer
<br /> Christopher L.Winfrey Executive Vice President and Chief Financial Officer
<br /> John Bickham Executive Vice President,Chief Operating Officer
<br /> Donald F.Detampel,Jr. Executive Vice President and President,Commercial Services
<br /> Richard R.Dykhouse Executive Vice President,General Counsel and Corporate
<br /> Secretary
<br /> Thomas Adams Executive Vice President,Field Operations
<br /> Richard J.DiGeronimo Executive Vice President,Product and Strategy
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