Abbreviations:

Bbl	barrel
bbls	barrels
Bcf	billion cubic feet
boe	barrels of crude oil equivalent
boepd or boe/d	barrels of crude oil equivalent per day
bopd	barrels crude oil per day
lt	long ton
Mbbls	thousand barrels
Mboe	thousand barrels of oil equivalent
Mcf	thousand cubic feet
MMbbls	millions barrels
MMBoe	million barrels of crude oil equivalent
MMcf	million cubic feet
Mcfe	million cubic feet equivalent
MMcfd or MMcf/d	million cubic feet per day
Mlt	thousands of long tons
ngls	natural gas liquids

Conversion Factors
To conform with common usage, standard imperial units of measurement are used in these abbreviations and conversion tables to describe exploration and production activities. The following table sets forth conversions between standard imperial units and the international system of units (or metric units).