Tidelands Oil Prod. Co.

California Resources Production Corporation

Huntington Signal Oil Co.

Kelter Bros., LLC

South Coast Oil Corporation

City of Newport Beach

ExxonMobil Corporation

THUMS Long Beach Co.

Damson Oil Corporation

Phillips Petroleum Company

Chevron U.S.A. Inc.

Atlantic Richfield Company

Westates Petroleum Corporation

City of Long Beach Dept. of Gas & Oil

Triton Oil & Gas Corporation

Mobil Oil Corporation

Conoco Inc.

SWEPI, LP

DCOR, LLC

Union Oil Company of California

Beloil Corporation, Ltd.

Morton L. Brown

Lido Petro. Co.

Hubro Oil Corp.

McVicar-Rood

Aera Energy LLC

Minnesota Oil Co.

Mojave Petroleum Co.

Mohawk Petroleum Corp.

Milroy Oil Co. Inc.

Estate of Howard F. O'Brien

The Petrol Corp.

Progressive Oil Co.

Signal Royalties Co.

The Termo Company

Surf Assoc., Inc.

Venoco, Inc.

E. B. Kinney

Oakburn Drilling Co.

ARCO Oil & Gas Company

Oryx Energy Company

R. C. Foerster & C C Kreis

United States Petro. Co.

U. S. Natural Resources Inc.

Freeport-McMoRan Oil & Gas LLC

Pauley Petroleum Inc.

E. R. Rich

Robert Bowles Oil Co.

Shuman & Fitzgerald

El Camino Oil Co. Ltd

Doyle Petroleum Corporation

Unocal

H. J. Montgomery

Rincon Island Ltd. Prtnrshp.

Indian Petroleum Company

Bertha C. Needham

Rincon Oil Co.

Sanoma Gasoline Co.

Russell L. Williams

Benjamin F. Bailard

Kittie C. Bailard

Kyrtle Bailard

Casitas Oil Co.

Henry Berrie Fish

Thomas N. Fish

Lucien M. Higgnis

Callie M. Higgins

Geo. A. McDonald

Thornbury Drilling Co.

R. W. Caspers

Mary B. Hall

Justin S. Snow

Theresa Franklin

Submarine Oil Co.

C. H. Olsson

Churchill & Weber

Cities Service Oil & Gas Corporation

Clark Stevens & Duncan

Duncan Wharf

J. K. Fisher

McDonald Drilling Co.

North Star Wharf

Sunset Oil Company

S.B.O. & M. Co. Wharf

State Lands Commission

Phillips Oil Company

Vintage Production California LLC

Scott-McIntosh Petro Inc.

Harvest Natural Resources, Inc.

Cather & McCallen Wells

City of Los Angeles

PACIFIC OPERATORS OFFSHORE, LLC

ATLANTIC REFINING COMPANY

CHEVRON USA INC

EXXON MOBIL CORPORATION

EXXONMOBIL OIL CORPORATION

DCOR, L.L.C.

PAULEY PETROLEUM, INC.

GULF OIL CORPORATION

VENOCO, INC.

UNION OIL COMPANY OF CALIFORNIA

SWEPI LP

PLAINS EXPLORATION & PRODUCTION COMPANY (PXP)

CONOCO INC.

NOBLE ENERGY INC

ANADARKO E&P COMPANY LP

ORYX ENERGY COMPANY

TEXACO INC.

FREEPORT MCMORAN OIL & GAS LLC

ATLANTIC RICHFIELD COMPANY

EXPLORATION SERVICE, INC.

BETA OPERATING COMPANY, LLC

SHELL OIL COMPANY

CHALLENGER MINERALS INC.

MARATHON PETROLEUM COMPANY

AERA ENERGY LLC

ARGUELLO INC.

CONOCOPHILLIPS COMPANY

STANDARD OIL CO. OF CALIF.

TEXACO EXPLORATION AND PRODUCTION, INC.

SHELL FRONTIER OIL & GAS INC.

HUMBLE OIL & REFINING CO.