L/C - Landing Collar.
LACT - lease automatic custody transfer
LAN - Local Area Network
LAS – Liquid Additive System
LAT - Lowest Astronomical Tide
Lat =latitude
LBOP - Lower BOP (TDS or Kelly)
LBP - Length between perpendiculars
LBS - lifeboat stations
LC - Loss Circulation
LCB - longitudinal centre of buoyancy
LCD - Liquid Crystal Display
LCF - longitudinal centre of flotation
LCM - Lost Circulation Material
LDT - light displacement tonnage, lost during trans-shipment
LED - Light emitting diode
LEL - Lower explosive limit
LEM - lower explosive mixture
LEO - low earth orbit (satellite configuration)
LER - Local equipment room
LGR - Liquid Gas Ratio
LGS - LowGravity Solids
LIFT - Licence Information for Trading
LIR - Local Instrument Room
LKO - Lowest Known Oil
LMRP - Lower Marine Riser Package
LMT - local mean time
LMV - Lower Master Valve
LN - Land
LN - Lost nozzle
LNG - Liquefied Natural Gas
LO - lubricating oil
LOA - Length over all
LOC - Letter of credit, letter of compliance (USCG)
LODF - Line Outage Distribution Factor
LOE - lease operating expense
LOGIC - Leading Oil and Gas Industry Competitiveness
LOL - limitation of owner's liability
LOLE - Loss Of Load Expectation
LOLER - Lifting operation, lifting equipment regulations
LOP - Line of position
LOR - Letter of readiness
LOS - Law of the Sea
LOS - Line of sight
LOT - Leak-Off Test
LP - liquid petroleum
LP - low pressure
LPC - London Processing Centre
LPG - Liquefied Petroleum Gas
LR - Lloyd's Register
LRDP - Long Range Development Plan
Ls - Limestone
LSA - Low specific activity (Radiation level)
LSFO - Loss-Sulfur Fuel Oil
LSH - Level Safety High
LSL - Level Safety Low
LST - local standard time
LT - Lost teeth drill bit
LTOBM - Low toxicity oil based mud
LVI - Low Viscosity Index
LW - low water
LWD - Logging Whilst Drilling
LWL - length on water line
LWSA - Lightweight Solid Additives
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