During their respective careers, Colt Team members have done business with and/or performed land services for the following companies:
- Anadarko Petroleum Corporation
- BASA Energy
- Crow Creek Energy Partners
- Cornerstone Petroleum Resources, LLC
- Colt Operating, LLC
- Devon Energy
- El Paso
- Encore Acquisition Company
- ExxonMobil
- Fina
- Four Sevens Resources Co., Ltd.
- GeoSouthern Energy Company
- Great Plains Operating, LLC
- Hallwood Energy
- Huntington Energy, LLC
- John H. Young, Inc.
- The Long Trusts
- Marathon
- Marshall Exploration Company
- Mitchell Energy
- NextEra Energy Producer Services, LLC
- Philip E. Berry Operating
- Providence Partners, LLC
- Quicksilver Resources Company
- Range Resources Company
- Sonat Exploration Company
- Somerset Minerals, LP
- Stroud Oil Properties, Inc.
- Swift Energy Company
- Union Pacific Resources Company
- Vastar Resources
- XTO Energy Inc.