Antill Pipeline

Hunt Oil Company

BKE

James Whitson Jr.

Brammer Engineering

Kelley Oil

Browning Oil Co.

Louisiana Gas & Development

Carizzo Oil & Gas

LLOG Exploration

Commerce Energy

Nuex

Concord Operating

Ocean Energy

Cox resouces

Petro-Hunt, LLC

Devon Energy

Sam Gary

DMS Oil Company

Smith Production

Eland Energy

Southwestern Energy Production Company

Exxon/Mobil Company

Flash Gas & Oil

St. Mary Land & Exploration

Fontenot Petroleum

Tellus Operating

Forcenergy

Texas Petroleum

Goodrich Petroleum

Tom Brown Inc.

Gulf South Pipeline

Unit Petroleum

Hallwood Energy Co.

Wagner Oil Company

Hilcorp Energy

Zinke & Trumbo

Hiliard Petroleum

Zinn Corporation