High Island 24L

Offshore Texas, acquired from BlueRock Energy Capital Ltd. and Sterling Exploration LLC in March 2007.

BlueRock Energy Capital Ltd and Tammany are partners in this field with Tammany operating the field through its subsidiary Jefferson Block 24 Oil & Gas LLC. Tammany has taken this shut in field and turned it into a profitable venture for the companies involved. Through the use of 3D seismic multiple targets have been identified in the field. To date Tammany has drilled one well with multiple completions, performed both minor and major work overs, and implemented operational changes to bring the field to its current profitable state. Tammany has a significant inventory of recompletions and plans to drill at least two wells, one to a proven up dip location, and one to an unexploited fault block.

Late 2011 Tammany completed a concentric flow line installation for gas lift implementation, saving considerable investment dollars and minimizing the environmental footprint of the oil and gas operations by eliminating the need to disturb the marine bottom for a new line. This required using techniques seldom used in the offshore and the approval of the Texas Railroad Commission and other regulatory agencies. Tammany is looking for other opportunities to use this technique at High Island 24L as well as other fields we may acquire in the future.


  • September, 2012 This article features Tammany Oil & Gas LLC in September 2012 issue of Offshore Magazine: "Tammany innovation saves dying well in shallow GoM".read more

  • August 31, 2011 Tammany Oil & Gas LLC (Tammany) announced today that, effective as of July 1, 2011, Tammany is the owner of CIECO Energy Ventures, LLC (CEV) as a result of its acquisition of 100% of the membership interest of CEV and is in the process of filing with the BOEMRE necessary documentation to reflect that CEV's name has been changed to "Tammany Energy Ventures LLC" (TEV).read more

  • Tammany Oil acquires Summit Gulf Venture, LLC assets - May 8th, 2008 Tammany Oil & Gas LLC (Tammany) announced today the acquisition of all the assets of Summit Gulf Venture, LLC (SGV). The purchase included eight non-operated oil and gas properties in the Gulf of Mexico. The purchase price was $10,000,000 effective January 1, 2008. Financing was provided to Tammany by NGP Capital Resources Company. The transaction closed April 30, 2008. read more

  • Tammany Oil & Gas Acquires Dominion Properties - June 2007 Houston, Texas Tammany Oil & Gas LLC (Tammany) announced today the acquisition of the Dominion Oklahoma Texas Exploration & Production, Inc. (DOTEPI) Gulf of Mexico Shelf Divestment Package. The sales package contained properties located in both state and federal waters across the Gulf, both operated and non-operated. The purchase price was not disclosed however financing was provided to Tammany by NGP Capital Resources Company (NASDAQ: NGPC).read more

  • Tammany Oil & Gas Acquires High Island Properties - April 2007 Tammany Oil & Gas LLC (Tammany) announced today that it has acquired an interest in several oil & gas properties in the High Island Area, offshore Texas. The properties are located approximately 20 miles south of Beaumont, Texas and will be operated by Jefferson Block 24 Oil & Gas, LLC, a 100% owned subsidiary (Jefferson). Jefferson's partner in the acquisition is BlueRock Production, LLC of Houston, Texas. read more

  • Tammany Oil & Gas Acquires Offshore Field - December 2004

    Houston, Texas Tammany Oil & Gas has acquired an approximate 38% working interest in West Delta 27 Field from Exxon Mobil Corp. West Delta 27 Field is located approximately eleven (11) miles southwest of Venice, LA. It was discovered by Gulf Oil and Exxon (Humble) in 1957 and has produced over 2.7 trillion cubic feet of natural gas since inception of production in 1965. read more