Offshore Oil Pipelines
The partnership owns interests in approximately 1,000 miles of offshore crude oil pipeline systems in the Gulf of Mexico. In addition to being strategically located near some of the most prolific oil-producing regions in the Gulf of Mexico, Enterprise's oil pipeline systems are parallel to and connect with key segments of some of its natural gas pipeline systems and offshore platforms, which contain liquid separation and handling facilities. This distinguishes Enterprise from its competitors by allowing it to provide some producing properties with a unique single point of contact through which they may access a wide range of midstream services and assets.
Typically, our crude oil pipelines receive oil from offshore production facilities or other pipelines and deliver the oil to either onshore locations or to other interconnecting offshore pipelines. In general, our oil pipeline systems generate revenue based on either a direct gathering fee per barrel or on purchase and sale agreements which provide an implicit fee per barrel received. As a result, the partnership is not exposed to direct commodity price risk. A substantial portion of the revenues generated by our oil pipeline systems are attributed to production from reserves that have been committed under life-of-reserve dedications.
Facility |
Ownership Interest |
Miles |
Approximate Net Capacity (MBPD) |
Function |
Offshore Crude Oil Pipelines |
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Cameron Highway Oil Pipeline (1) |
50% |
374 |
250 |
Crude oil pipeline system that gathers primarily from the South Green Canyon area of the Gulf of Mexico for delivery to refineries and terminals in Port Arthur and Texas City, Texas. |
Poseidon Oil Pipeline System (2) |
36% |
367 |
144 |
Offshore crude oil pipeline system that gathers production from the outer continental shelf in the Gulf of Mexico and transports it onshore to Houma, Louisiana. |
Shenzi Oil Pipeline |
100% |
83 |
230 |
Offshore crude oil pipeline system that gathers production from the Southern Green Canyon area of the central Gulf of Mexico. |
Allegheny Oil Pipeline |
100% |
43 |
140 |
Offshore crude oil system that connects the Allegheny platform in the Green Canyon area of the Gulf of Mexico with Poseidon at the Ship Shoal 332 platform. |
Marco Polo Oil Pipeline |
100% |
37 |
120 |
Gathers crude oil from the Marco Polo hub platform into the Allegheny pipeline. |
Constitution Oil Pipeline |
100% |
67 |
80 |
Offshore oil pipeline to be constucted that will connect the Kerr-McGee-owned Constitution Cell Spar in Southern Green Canyon Block 680 to the Cameron Highway and Poseidon pipeline systems on our platform in Ship Shoal Block 332. |
Typhoon Oil Pipeline |
100% |
17 |
80 |
Offshore crude oil system that connects the Typhoon platform in the Green Canyon area of the Gulf of Mexico to the Shell Boxer platform, which provides access to Poseidon through a third party pipeline. |
Tarantula Oil Pipeline |
100% |
4 |
30 |
A newly constructed oil pipeline that connects the Tarantula field located in South Timbalier Block 308 in the central Gulf of Mexico to the Poseidon System. |
(1) Our 50% joint venture ownership interest in this pipeline is hled indirectly through our equity method investment in Cameron Highway Oil Pipeline Company
(2) Our ownership interest in this pipeline is held indirectly through our equity method investment in Poseidon Oil Pipeline Company.


