Exploratory costs of surveys of a topographical, geological, and geophysical nature along with the costs incurred to obtain the rights to make these surveys, salaries, and other expenses of the personnel required to carry out the surveys.

The free gas phase overlying an oil zone, occurring within the same producing formation as oil.

An analytical instrument that separates gases from each other. The gases are carried by a carrier, an inert gas that is usually nitrogen or helium, through a column filled with either a solid or a liquid that is called the stationary phase or packing. This separates the gases in to individual components depending on their affinity for the stationary phase. The more volatile, lighter, less polar compounds pass through the column fastest. A gas chromatograph is composed of (a) sample preparation, (b) sample valve, (c) column, (d) detector, and (e) signal recorder. The sample is introduced into the gas chromotograph with a syringe were it is immediately vaporized by heat. The separated compounds are identified by flame ionization or by a thermal conductivity detector and are recorded on gas chromotogram. Packed columns contain solid porous material that is coated with organic polymers, where as the more common capillary columns have no solid support and the polymer coats the column walls.

Artificial means of extracting oil. Gas is injected down the hole between the casing and production tubing. The injected gas then aerates the liquid and floats up the tubing to the surface. Commonly used on offshore wells.

Liquid petroleum distillates with viscosity between that of kerosene and lubricating oil. The "gas oil" name is derived from the original use of those oils in the manufacture of illuminating gas.

A measure of the volume of gas produced along with oil from the same well.

Facility that takes natural gas, removes impurities, and separates it into its various components.

A production payment payable out of gas produced.

Natural gas liquids removed from natural gas in fas processing plants or in field facilities.

A planning concept which considers gasoline of various qualities as one group for the purpose of blending to meet final product specifications.

The process of purifying natural gas.

Statement provided to record the amount of gas transferred from the well to the pipeline. Statements generally inclide purchaser and seller identification, well identification, volume accepted, BTU content, pressure base, water content (i.e. saturated or dry), and gross value due seller.

A well producing primarily natural gas.

A group of small pipelines which moves the oil (or gas) from several wells into a major pipeline (or in the case of oil, a single tank battery).

The individual responsible for the measurement of quantity and quality of oil and gas on a lease.

A form on which the measurement of oil in lease tanks is recorded.

Gas Balancing Agreement

Short for API gravity which expresses the density of a given petroleum fluid.

Managing partner of an LP who has limited liability.

Processes which seek surface or subterranean indications of earth structure of formation of a type where experience has shown the possibility of the existence of mineral deposits.

An exploratory program directed to the examination of rock and sediments obtained by boring and drilling, or by the inspections of surface outcroppings.

The study of the physics of the earth.

Science-the upward change in the average temperature of the earth and its atmosphere.

Gallons per one MCF of gas. Also an abbreviation for gallons per minute.

An instrument measuring the variations in the gravitational pull.

Total number of acres regardless of interest.

The total number of wells participated in regardless of the amount of interest. For example, a company owning ten percent interest in each of 20 wells is said ti have 20 gross wells and two net wells.