Gathering and Processing

assets

Our Gathering and Processing segment is an integrated midstream natural gas and oil system that provides the following services to our customers:

  • Gathering
  • Compression
  • Treating
  • Processing
  • Fractionating
  • Transportation
  • Sales of natural gas, NGLs and condensate.

 

Lavaca
The Lavaca gathering and redelivery system consists of approximately 120 miles of high- and low- pressure pipelines ranging from four to eight inches in diameter over 9,000 horsepower of compression. The system is located in the Eagle Ford shale in Gonzales and Lavaca counties, Texas, and has a design capacity of 90MMcf/d.

Gloria
The Gloria gathering system provides gathering and compression services through our assets, as well as processing services through our elective processing arrangements. The Gloria system is located in Lafourche, Jefferson, Plaquemines, St. Charles and St. Bernard parishes of Louisiana, gathering natural gas from onshore oil and natural gas wells. The system consists of approximately 110 miles of pipeline and three compressors with a combined size of 1,877 horsepower. The design capacity is approximately 90 MMcf/d.

Lafitte
The Lafitte gathering system consists of approximately 41 miles of gathering pipeline, with a design capacity of approximately 71 MMcf/d. The Lafitte system originates onshore in southern Louisiana and terminates in Plaquemines Parish, Louisiana at the Alliance Refinery owned by ConocoPhillips.

Main Pass Oil Gathering System
The Main Pass Oil Gathering System consists of approximately 98 miles of crude pipelines with eight inch and 10 inch laterals from four offshore platforms. The system is located offshore Southeast Louisiana and has a design capacity of 160 mbbls/d. It is 67% owned by American Midstream.

Chatom
The Chatom system consists of a 25 MMcf/d refrigeration processing plant, a 1,100 Bbl/d fractionation unit, a 160 long-ton per day sulfur recovery unit, and a 29 mile gas gathering system. The system is located in Washington County, Alabama, approximately 15 miles from our Bazor Ridge processing plant in Wayne County, Mississippi. The Chatom system gathers natural gas from onshore oil and natural gas wells producing in Alabama and Mississippi. Additionally, the Chatom system fractionates NGLs from a third party supplier under a long-term fractionation agreement.

Bazor Ridge
The Bazor Ridge gathering and processing system consists of approximately 160 miles of pipeline with three compressor stations with a combined compression capacity of 1,069 horsepower. The system is located in Jasper, Clarke, Wayne and Greene Counties of Mississippi. The system also contains a sour natural gas treating and cryogenic processing plant located in Wayne County, Mississippi with a design capacity of approximately 22 MMcf/d. Our Heidelberg gathering system is located within the Bazor Ridge area in Jasper County, Mississippi, and has a design capacity of approximately 18 MMcf/d.

The natural gas supply for our Bazor Ridge system is derived primarily from rich associated natural gas produced from oil wells targeting the mature Upper Smackover formation. Production from the wells drilled in this area is generally stable with relatively modest decline rates.

Burns Point Plant
The Burns Point Plant is located in St. Mary Parish, Louisiana, and processes raw natural gas using a cryogenic expander. We own a 50% undivided interest in the plant, with the remaining 50% undivided interest owned by the plant operator, Enterprise. The plant inlet volumes are sourced from offshore natural gas production via our Quivira system, Gulf South pipelines and onshore from individual producers near the plant. The residue gas is transported, via pipeline to Gulf South, SONAT and Tennessee Gas Pipeline and the Y-grade liquid is transported via pipeline to Promix, an Enterprise operated fractionator. The Burns Point plant is designed to process up to 200 MMcf/d.

Quivira
The Quivira gathering system consists of approximately 34 miles of pipeline, with a 12-inch diameter mainline and several laterals ranging in diameter from six to eight inches. The system originates offshore of Iberia and St. Mary Parishes of Louisiana in Eugene Island Block 24 and terminates onshore in St. Mary Parish, Louisiana at a connection with the Burns Point Plant. The system has a design capacity of approximately 140 MMcf/d. This system also includes an onshore condensate handling facility at Bayou Sale, Louisiana that is upstream of the Burns Point Plant.
The Quivira system provides gathering services for natural gas wells and associated natural gas produced from crude oil wells operated by major and independent producers targeting multiple conventional production zones in the shallow waters of the Gulf of Mexico. The natural gas produced from these wells is typically natural gas with condensate.

Offshore Texas
The Offshore Texas system consists of the GIGS and Brazos systems, two parallel gathering systems that provide gathering and dehydration services to natural gas producers in the shallow waters of the Gulf of Mexico region offshore Texas.

The Offshore Texas system consists of approximately 56 miles of pipeline with diameters ranging from six to 16 inches and a design capacity of approximately 100 MMcf/d. Additionally, the Offshore Texas system has two onshore separation and dehydration units, each with a capacity of approximately 40 MMcf/d, that remove water and other impurities from the gathered natural gas before delivering it to our customers. The GIGS system originates offshore of Brazoria County, Texas in Galveston Island Block 343 and connects onshore to the Houston Pipeline system. The Brazos system originates offshore of Brazoria County, Texas in Brazos Block 366 and connects onshore to the Dow Pipeline system.

Alabama
The Magnolia gathering system is a Section 311 intrastate pipeline that gathers coalbed methane in Tuscaloosa, Greene, Bibb, Chilton and Hale counties of Alabama and delivers this natural gas to an interconnect with the Transco Pipeline system. The system consists of approximately 116 miles of pipeline with small-diameter gathering lines and trunklines ranging from six to 24 inches in diameter and one compressor station with 3,328 horsepower. The system has a design capacity of approximately 120 MMcf/d.

The Fayette gathering system is located in Fayette County, Alabama, with a design capacity of approximately 5 MMcf/d.