Appendix B
Glossary

CASINGHEAD GAS

-- All natural gas released from oil during the production of oil from underground reservoirs.

CONDENSATE

-- (See LEASE CONDENSATE).

CRUDE OIL

-- A mixture of hydrocarbons that existed in the liquid phase in natural underground reservoirs and remains liquid at atmospheric pressure after passing through surface separating facilities.

GAS

-- The combination of natural gas and casinghead gas.

LEASE CONDENSATE

-- A mixture consisting primarily of pentane and heavier hydrocarbons which is recovered as a liquid from natural gas in lease or field separation facilities, exclusive of products recovered at natural gas processing plants or facilities.

LOUISIANA OFFSHORE

-- A 3 mile strip of submerged lands under State regulatory jurisdiction located between the State coast line and the State boundary line offshore. The OCS region and federal jurisdiction begins at the State offshore boundary line and extends seaward.

LOUISIANA ONSHORE

-- Region defined between the State boundary line offshore and the coast line.

LOUISIANA OCS

-- Submerged lands under federal regulatory jurisdiction that comprise the Continental Margin or Outer Continental Shelf adjacent to Louisiana and seaward of the Louisiana Offshore region (seaward of the State boundary line offshore). Production in the OCS is under federal jurisdiction.

NATURAL GAS

-- A mixture of hydrocarbon compounds and small quantities of various non-hydrocarbons existing in the gaseous phase or in solution with crude oil in natural underground reservoirs at reservoir conditions. The principal hydrocarbons usually contained in the mixture are methane, ethane, propane, butanes and pentanes. Typical non-hydrocarbon gases which may be present in reservoir natural gas are carbon dioxide, helium, hydrogen sulfide, and nitrogen. Under reservoir conditions, natural gas and the liquefiable portions occur either in a single gaseous phase in the reservoir or in solution with crude oil, and are not distinguishable at the time as separated substances.

NATURAL GAS LIQUIDS

-- Lease condensate plus natural gas plant liquids.

NATURAL GAS PLANT LIQUIDS

-- Those hydrocarbons remaining in a natural gas stream after field separation and later separated and recovered at a natural gas processing plant or cycling plant through the processes of absorption, adsorption, condensation, fractionation, or other methods. Generally, such liquids consist of propane and heavier hydrocarbons and are commonly referred to as condensate, natural gasoline, or liquefied petroleum gases. Where hydrocarbon components lighter than propane (e.g., ethane) are recovered as liquids, these components are included with natural gas liquids.

NON-HYDROCARBON MINERALS

-- The term non-hydrocarbon minerals in Louisiana refers to coal, lignite, salt, or sulphur

OIL

-- The combination of crude oil and condensate.

OUTER CONTINENTAL SHELF (OCS)

-- All submerged lands that comprise the Continental Margin adjacent to the U.S. and seaward of the state offshore boundary line. Production in the OCS is under federal regulatory jurisdiction and ownership.

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