Natural gas which overlies and is in contact with crude oil in the reservoir, except where the volume of oil is small and where production of such gas does not significantly affect recovery of the crude oil.
Natural gas that can be developed for commercial use, and which is found in contact with oil in naturally occurring underground formations. ATgas: Synthetic gas produced by dissolving coal in a bath of molten iron. The process was developed by Applied Technology, Inc. Synthetic gas may be used as a substitute for natural gas in industrial and home uses.
Natural gas found as part of or in conjunction with other constituents of crude oil, as opposed to gas found on its own. The expression has come to include natural gas necessarily produced along with crude oil.