WES insider transactions

Director Phillips Robert G bought $50,238 worth of Common Units representing limited partner interests (1,250 units at $40.19), increasing direct ownership by 31% to 5,296 units (SEC Form 4)

Amendment: SVP, GC and Secretary Dial Christopher B. covered exercise/tax liability with 5,879 units of Common Units representing limited partner interests, decreasing direct ownership by 3% to 225,015 units (SEC Form 4)

President & CEO Brown Oscar K converted options into 24,022 units of Common Units representing limited partner interests and covered exercise/tax liability with 10,510 units of Common Units representing limited partner interests, increasing direct ownership by 19% to 85,440 units (SEC Form 4)

Director Schulte David J converted options into 3,843 units of Common Units representing limited partner interests, increasing direct ownership by 11% to 40,072 units (SEC Form 4)

SEC Form 4 filed by Director Forthuber Frederick A.

Director Stewart Lisa A converted options into 3,843 units of Common Units representing limited partner interests, increasing direct ownership by 11% to 39,772 units (SEC Form 4)

Director Phillips Robert G converted options into 4,046 units of Common Units representing limited partner interests (SEC Form 4)

SVP, GC and Secretary Dial Christopher B. converted options into 91,788 units of Common Units representing limited partner interests, covered exercise/tax liability with 30,283 units of Common Units representing limited partner interests and sold $248,976 worth of Common Units representing limited partner interests (5,879 units at $42.35), increasing direct ownership by 33% to 225,015 units (SEC Form 4)

Director Owen Kenneth F. converted options into 3,843 units of Common Units representing limited partner interests, increasing direct ownership by 10% to 41,772 units (SEC Form 4)

SVP & Chief Operating Officer Holderman Daniel P. converted options into 91,788 units of Common Units representing limited partner interests and covered exercise/tax liability with 36,152 units of Common Units representing limited partner interests, increasing direct ownership by 156% to 91,384 units (SEC Form 4)

SVP & Chief Accounting Officer Green Catherine A. covered exercise/tax liability with 24,994 units of Common Units representing limited partner interests and converted options into 63,315 units of Common Units representing limited partner interests, increasing direct ownership by 50% to 115,036 units (SEC Form 4)

SVP & Chief Financial Officer Shults Kristen S. converted options into 91,788 units of Common Units representing limited partner interests and covered exercise/tax liability with 36,165 units of Common Units representing limited partner interests, increasing direct ownership by 63% to 143,752 units (SEC Form 4)

Large owner Occidental Petroleum Corp /De/ disposed of 15,307,402 units of COMMON UNITS (SEC Form 4)

President & CEO Brown Oscar K converted options into 52,660 units of Common Units representing limited partner interests and covered exercise/tax liability with 20,722 units of Common Units representing limited partner interests, increasing direct ownership by 80% to 71,928 units (SEC Form 4)

SEC Form 4 filed by Director Phillips Robert G

New insider Phillips Robert G claimed no ownership of stock in the company (SEC Form 3)

SEC Form 4 filed by Director Schulte David J

SEC Form 4 filed by Director Owen Kenneth F.

SEC Form 4 filed by Director Stewart Lisa A

SVP & Chief Accounting Officer Green Catherine A. covered exercise/tax liability with 8,298 units of Common Units representing limited partner interests and converted options into 21,085 units of Common Units representing limited partner interests, increasing direct ownership by 20% to 76,715 units (SEC Form 4)

SVP, GC and Secretary Dial Christopher B. converted options into 29,196 units of Common Units representing limited partner interests and covered exercise/tax liability with 11,490 units of Common Units representing limited partner interests, increasing direct ownership by 12% to 169,389 units (SEC Form 4)

SVP & Chief Financial Officer Shults Kristen S. converted options into 36,492 units of Common Units representing limited partner interests and covered exercise/tax liability with 14,361 units of Common Units representing limited partner interests, increasing direct ownership by 34% to 88,129 units (SEC Form 4)

SEC Form 4 filed by SVP & Chief Operating Officer Holderman Daniel P.

SEC Form 4 filed by President & CEO Brown Oscar K

SVP, North Operations Forsyth Michael S. converted options into 28,548 units of Common Units representing limited partner interests and covered exercise/tax liability with 12,533 units of Common Units representing limited partner interests, increasing direct ownership by 61% to 42,327 units (SEC Form 4)

SVP & Chief Accounting Officer Green Catherine A. covered exercise/tax liability with 9,182 units of Common Units representing limited partner interests and converted options into 23,145 units of Common Units representing limited partner interests, increasing direct ownership by 28% to 63,928 units (SEC Form 4)

SVP & Chief Commercial Officer Bourne Robert W. converted options into 31,540 units of Common Units representing limited partner interests and covered exercise/tax liability with 12,450 units of Common Units representing limited partner interests, increasing direct ownership by 15% to 149,715 units (SEC Form 4)

SVP, GC and Secretary Dial Christopher B. converted options into 31,540 units of Common Units representing limited partner interests and covered exercise/tax liability with 12,453 units of Common Units representing limited partner interests, increasing direct ownership by 14% to 151,683 units (SEC Form 4)

SVP & Chief Financial Officer Shults Kristen S. converted options into 41,270 units of Common Units representing limited partner interests and covered exercise/tax liability with 16,269 units of Common Units representing limited partner interests, increasing direct ownership by 61% to 65,998 units (SEC Form 4)

SVP & Chief Operating Officer Holderman Daniel P. converted options into 32,814 units of Common Units representing limited partner interests and covered exercise/tax liability with 12,953 units of Common Units representing limited partner interests, increasing direct ownership by 125% to 35,748 units (SEC Form 4)

Director Schulte David J converted options into 5,199 units of Common Units representing limited partner interests, increasing direct ownership by 17% to 36,229 units (SEC Form 4)

Director Owen Kenneth F. converted options into 5,199 units of Common Units representing limited partner interests, increasing direct ownership by 16% to 37,929 units (SEC Form 4)

Director Stewart Lisa A converted options into 5,199 units of Common Units representing limited partner interests, increasing direct ownership by 17% to 35,929 units (SEC Form 4)

President & CEO Brown Oscar K converted options into 5,199 units of Common Units representing limited partner interests, increasing direct ownership by 15% to 39,990 units (SEC Form 4)

SEC Form 4 filed by President & CEO Brown Oscar K

Large owner Occidental Petroleum Corp /De/ sold $697,125,000 worth of COMMON UNITS (19,500,000 units at $35.75) (SEC Form 4)

Large owner Occidental Petroleum Corp /De/ sold $697,125,000 worth of COMMON UNITS (19,500,000 units at $35.75) (SEC Form 4)

Ure Michael gifted 22,000 units of Common Units representing limited partner interests, decreasing direct ownership by 4% to 539,404 units (SEC Form 4)

Bourne Robert W. bought $50,430 worth of Common Units representing limited partner interests (1,354 units at $37.25), increasing direct ownership by 1% to 130,625 units (SEC Form 4)

Stewart Lisa A bought $87,175 worth of Common Units representing limited partner interests (2,500 units at $34.87), increasing direct ownership by 9% to 30,730 units (SEC Form 4)

Ure Michael bought $168,250 worth of Common Units representing limited partner interests (5,000 units at $33.65), increasing direct ownership by 0.90% to 561,404 units (SEC Form 4)

Stewart Lisa A bought $83,450 worth of Common Units representing limited partner interests (2,500 units at $33.38), increasing direct ownership by 10% to 28,230 units (SEC Form 4)

Schulte David J bought $27,392 worth of Common Units representing limited partner interests (800 units at $34.24), increasing direct ownership by 3% to 31,030 units (SEC Form 4)

Brown Oscar K bought $236,218 worth of Common Units representing limited partner interests (7,000 units at $33.75), increasing direct ownership by 25% to 34,791 units (SEC Form 4)

Owen Kenneth F. bought $237,720 worth of Common Units representing limited partner interests (7,000 units at $33.96), increasing direct ownership by 27% to 32,730 units (SEC Form 4)

Green Catherine A. converted options into 35,749 units of Common Units representing limited partner interests and covered exercise/tax liability with 14,209 units of Common Units representing limited partner interests, increasing direct ownership by 76% to 49,965 units (SEC Form 4)

Forsyth Michael S. converted options into 16,821 units of Common Units representing limited partner interests and covered exercise/tax liability with 6,736 units of Common Units representing limited partner interests, increasing direct ownership by 62% to 26,312 units (SEC Form 4)

Holderman Daniel P. covered exercise/tax liability with 4,467 units of Common Units representing limited partner interests and converted options into 17,872 units of Common Units representing limited partner interests, increasing direct ownership by 540% to 15,887 units (SEC Form 4)

Nebreda Alejandro O converted options into 29,478 units of Common Units representing limited partner interests and covered exercise/tax liability with 11,697 units of Common Units representing limited partner interests, increasing direct ownership by 38% to 64,357 units (SEC Form 4)

Dial Christopher B. converted options into 112,048 units of Common Units representing limited partner interests and covered exercise/tax liability with 44,191 units of Common Units representing limited partner interests, increasing direct ownership by 105% to 132,602 units (SEC Form 4)

Bourne Robert W. converted options into 95,201 units of Common Units representing limited partner interests and covered exercise/tax liability with 37,567 units of Common Units representing limited partner interests, increasing direct ownership by 80% to 129,271 units (SEC Form 4)

Shults Kristen S. covered exercise/tax liability with 11,686 units of Common Units representing limited partner interests and converted options into 29,454 units of Common Units representing limited partner interests, increasing direct ownership by 76% to 40,997 units (SEC Form 4)

Ure Michael converted options into 462,251 units of Common Units representing limited partner interests and covered exercise/tax liability with 181,898 units of Common Units representing limited partner interests, increasing direct ownership by 102% to 556,404 units (SEC Form 4)

Stewart Lisa A converted options into 5,088 units of Common Units representing limited partner interests, increasing direct ownership by 25% to 25,730 units (SEC Form 4)

Schulte David J converted options into 5,088 units of Common Units representing limited partner interests, increasing direct ownership by 20% to 30,230 units (SEC Form 4)

Owen Kenneth F. converted options into 5,088 units of Common Units representing limited partner interests, increasing direct ownership by 25% to 25,730 units (SEC Form 4)

Brown Oscar K converted options into 5,088 units of Common Units representing limited partner interests, increasing direct ownership by 22% to 27,791 units (SEC Form 4)

SEC Form 4: Ure Michael gifted 16,000 units of Common Units representing limited partner interests, decreasing direct ownership by 5% to 276,051 units

SEC Form 4: Occidental Petroleum Corp /De/ sold $127,500,000 worth of COMMON UNITS (5,100,000 units at $25.00)

SEC Form 4: Occidental Petroleum Corp /De/ sold $127,500,000 worth of COMMON UNITS (5,100,000 units at $25.00)