Domestic
- U.S. Steel
- Kinder Morgan
- Drummond Company
- Tutwiler Investments
- Von Gunten Family Estate (Ohio)
- Miller Investment Co.
- Farm Links
- Luce Packing Co.
International
- Zimbabwe – Coalbed Methane
- Gaborone, Botswana
- British Columbia – Vancouver Island and Hudson Hope
- Nova Scotia
- Alberta
