J

J N Exploration & Production Co.
J. B. Were & Son Inc.
J. M. Huber Corp.
J.P. Oil Co. Inc.
James Engineering Inc.
Japan Petroleum Exploration Co.
Jeffco Holdings Inc.
JHL Oil & Gas Ltd.
JMI Energy Inc. & Castle Rock Resources
Jones Energy Ltd.
Journey Oil & Gas LLC.
JSC Kholmskneftegas
JSC Negusneft
JSC Severtek
Jubilant Enpro PVT Ltd.
Jurassic Resources Development
J. A. Knight Trust
J. K. Brown Inc.
J. P. Morgan Chase Bank
Jackson & Walker LLP.
Japan Australia LNG
Japex US Corp.
Jeffries & Co. Inc.
Jim Walter Resources Inc.
Joint Energy Dev. Investments
Jordan Oil Co. Inc.
JSC Khanty-Mansiysk Oil Co.
JSC Nazymskaya Oil & Gas
JSC NK Russneft
JTH Enterprises
Juno Energy LLC.