Significant Pollution Incidents

Pollution:	9,935 bbl Crude Oil	Operation:	Production
Rig/Platform:	Platform A	Lease:	G01449
Area: Block:	West Delta 79	Cause:	Equipment Failure: tank ruptured
Distance to Shore:	17 Miles	Water Depth:	110 Feet

Remarks: A 36" structural I-beam supporting an oil storage tank bent, causing a rupture in the tank.

Pollution:	7,000 bbl Crude Oil	Operation:	Production & Barge
Rig: Platform:	Platform CA Barge BI-363	Lease:	G01238
Area: Block:	South Pelto 23	Cause:	Weather Related: rough seas
Distance to Shore:	15 Miles	Water Depth:	61 Feet
Other Events:	Vessel Mishap

Remarks: A storage barge was tied to the platform and became entangled with an anchor buoy during rough seas. The barge developed a leak, and its stern sank. Response: salvage operations removed small amounts of oil; repaired barge.

Pollution:	5,000 bbl Crude Oil	Operation:	Pipeline
Rig/Platform:	16" P	Lease:	G01083
Area: Block:	West Delta 73	Cause:	Leak: corrosion
Distance to Shore:	22 Miles	Water Depth:	168 Feet
Pipeline Segment:	00807	Pipeline Diameter:	16 Inches

Remarks: Several small leaks occurred in submerged gas & oil pipeline as a result of internal corrosion. Response: repairs were made by installing clamps over the leaks. Pipeline was scheduled to be replaced with a new one in 1974. Possibly over 5,000 bbl spilled.

Pollution:	239 bbl Diesel	Operation:	Drilling & Motor Vessel
Rig: Platform:	Rig Penrod 53 Wells 1 & 3	Lease:	G01657
Area: Block:	Main Pass 265	Cause:	Weather Related & Human Error: heavy tide & judgement
Distance to Shore:	56 Miles	Water Depth:	300 Feet
Other Events:	Vessel Mishap

Remarks: EXPLORATION SPILL. Hose connection parted while unloading diesel fuel from a boat to the rig in rough tide. Inadequate communications delayed discovery and response. Response: Shut off pump; personnel were instructed to ensure that closer communications exist between the rig and the boat during operations.

Pollution:	95.2 bbl Diesel	Operation:	Drilling & Motor Vessel
Rig: Platform:	Rig Seadrill 12 Platform C	Lease:	N/A
Area: Block:	Eugene Island 215	Cause:	Human Error: negligence
Distance to Shore:	37 Miles	Water Depth:	103 Feet
Other Events:	Vessel Mishap

Remarks: During fueling operations, the supply boat drifted with the current pulling unwatched fuel loading hose apart. Response: line was shut in and repaired.