Kathryn Gibbons Chapter / H. David Crossley Chapter / Allan Spencer Chapter / SPE/WPC/AAPG Petroleum Resources Definitions SOCIETY OF PETROLEUM ENGINEERS / James G. Ross Chapter / Claude L. McMichael Chapter / James D. Robertson Chapter / Society of Petroleum Engineers / Society of Petroleum Engineers All / American Association of Petroleum Geologists / Wim J.A.M. Swinkels Chapter / Contents Chapter / Oil and Gas Reserves Committee / Swinkels Chapter / SPE Oil and Gas Reserves Committee / /
Person
H. David Crossley / Claude L. McMichael / Sigurd Heiberg / G. Ross Resource / Spencer Chapter / James G. Ross / James D. Robertson / Kathryn Gibbons / Allan Spencer / / /