Proven Reserves has been very fortunate to work with these clients:

• Athlone Energy Ltd.
• Burmis Energy Inc.
• Crispin Energy Inc.
• Devon Energy Corp.
• Emerald Bay Energy Inc.
• EnCana Corporation
• Esprit Exploration Ltd. – BECAME Pengrowth
• First Calgary Petroleums Ltd.
• Fairborne Energy Ltd.
• Gentry Resources Ltd.
• Grand Petroleum Inc.
• Grey Wolf Exploration Inc.
• Harvest Operations Corp.
• Hawker Resources Inc.
• Husky Oil Operations Ltd.
• Kelso Energy Inc.
• Kensington Energy Ltd.
• Mustang Resources Inc.
• Navigo Energy Inc.
• Northrock Resources Ltd.
• Outlook Energy Ltd.
• Outrider Energy Ltd.
• Pearl E&P Canada Ltd.
• Pengrowth Corporation
• Penn West Petroleum Ltd.
• Petro-Canada Oil and Gas
• Petro-Reef Resources Ltd.
• Petrofund Energy Trust
• Prendegast Petroleum Ltd.
• Regent Resources Ltd.
• Revolve Energy Inc.
• Rock Creek Resources Ltd.
• Sawtooth International Resources Inc.
• Seneca Energy Canada
• Shell Canada Energy
• Suncor Energy Inc.
• Tajzha Ventures Ltd.
• True Energy Inc.
• Val Vista Energy Ltd.
• Vero Energy Inc.
• Winstar Resources Ltd.
• Whitehall Energy Ltd.