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Unbundling E-Blasts and Updates

Related Pages

The new UCAs are available on the Unbundling Home page and relate to the allowable portion of contractual processing fees. If you have any questions, please direct your inquiries to

  • 2018

  • Echo Springs Gas Plant
    January 18, 2018

    On January 18th, 2018, the Office of Natural Resources Revenue (ONRR) published Unbundling Cost Allocations (UCAs) for the Echo Springs Gas Plant for the years 2011-2017. The new UCAs are available at the Office of Natural Resources Revenue website, onrr.gov/unbundling and relate to the allowable portion of contractual processing fees. If you have any questions, please direct your inquiries to onrrunbundling@onrr.gov.

  • 2016

  • Mobile Bay and Venice Gas Plants
    July 21, 2016

    On July 21st, 2016, the Office of Natural Resources Revenue (ONRR) published Unbundling Cost Allocations (UCAs) for the Mobile Bay Gas Plant and the Venice Gas Plant for the years 2009-2016.

  • Toca Gas Plant
    April 15, 2016

    On April 15th, 2016, the Office of Natural Resources Revenue (ONRR) published Unbundling Cost Allocations (UCAs) for the Toca Gas Plant for the years 2009-2016.

  • 2015

  • Eunice Gas Plant
    March 23, 2016

    On March 23rd, 2016, the Office of Natural Resources Revenue (ONRR) published Unbundling Cost Allocations (UCAs) for the Eunice Gas Plant for the years 2008-2015.

  • Neptune Gas Plant
    January 11, 2016

    On January 11th, 2016, the Office of Natural Resources Revenue (ONRR) published Unbundling Cost Allocations (UCAs) for the Neptune Gas Plant for the years 2008-2015.

  • Stingray Gas Plant and the North Terrebonne Gas Plant
    September 30, 2015

    On September 30th, 2015, ONRR published Unbundling Cost Allocations (UCAs) for the Stingray Gas Plant and the North Terrebonne Gas Plant for the years 2008-2015.

  • Yscloskey Gas Plant
    September 16, 2015

    On September 16th, 2015, ONRR published Unbundling Cost Allocations (UCAs) for the Yscloskey Gas Plant for the years 2008-2012. The plant was shut-down in the year 2012.

  • Opal Gas Plant
    July 31, 2015

    On July 31st, 2015, ONRR published Unbundling Cost Allocations (UCAs) for the Opal Gas Plant for the years 2008-2013.

  • Calumet Gas Plant
    July 2, 2015

    On July 2, 2015, ONRR published Unbundling Cost Allocations (UCAs) for the Calumet Gas Plant for the years 2008-2014.
    Note: On August 7, 2015 AVUT changed the UCA file to reflect the closing of Calumet in 2012.

  • Pascagoula Gas Plant
    June 12, 2015

    On June 12, 2015, ONRR published Unbundling Cost Allocations (UCAs) for the Pascagoula Gas Plant for the years 2008-2014.

  • San Juan (Blanco), Chaco and Lybrook Gas Plant Update
    April 15, 2015

    On April 15, 2015, ONRR published new Unbundling Cost Allocations (UCAs) for the San Juan Transportation System and the San Juan (Blanco) Plant for the years 2008-2014.  ONRR also published new UCAs for the Torre Alta Transportation System and the Lybrook Plant for the year 2011. ONRR updated UCAs for the San Juan Transportation System and the Chaco Plant for the years 2008-2014. This update is due to the acquisition of more accurate information regarding this transportation system and gas plant. 

    From this point forward, UCAs based on replacement cost will be rounded to the closest integer.

  • 2014

  • San Juan Transportation System - Chaco Gas Plant
    December 22, 2014

    On 22-Dec-2014 ONRR published Unbundling Cost Allocations (UCAs) for the Enterprise Chaco Gas Plant and San Juan Trans. System (SJTS). The SJTS UCA applies to shippers sending production to the Chaco Gas Plant. The previous SJTS UCA is no longer applicable and was removed from onrr.gov. Refer to the new Chaco UCA file and examples at: onrr.gov/unbundling home page.

  • Updated Unbundling Cost Allocations
    September 8, 2014

    On September 8, 2014, the Asset Valuation Unbundling Team (AVUT) added examples on how to apply the Unbundling Cost Allocations (UCAs). The UCA values for each plant/system did not change. The updated files are available on the Unbundling home page.

  • Updated Unbundling Cost Allocations
    July 8, 2014

    On July 8th, 2014, the Asset Valuation Unbundling Team (AVUT) updated the Unbundling Cost Allocations (UCAs) for the Kutz and Lybrook plants and their associated transportation systems by adding UCAs for 2007 through 2010. AVUT also added an example on how to apply the UCAs for the Carlsbad plant and gathering system for 2004 through 2007; the UCAs did not change.

  • Updated UCA Methodologies
    February 20, 2014

    On February 20th the Asset Valuation Unbundling Team (AVUT) updated the methodology files for calculating Transportation and Processing UCAs. The changes involve a note specifying that the Depreciation and RUC are for illustrative purposes only, and correcting a mistake on the allocation of meters in the Transportation UCA calculation. AVUT did not send an e-blast for this update.

  • Example for Ignacio Plant and San Juan Transportation
    January 21, 2014

    The Asset Valuation Unbundling Team (AVUT) added an example on how to apply the Unbundling Cost Allocations (UCAs) for the San Juan Conventional Transportation System and Ignacio Processing Plant for 2006-2010. The UCAs have not changed.

  • 2013

  • Manzanares Transportation
    November 25, 2013

    The Asset Valuation Unbundling Team (AVUT) updated the Unbundling Cost Allocations (UCAs) for the Manzanares Transportation System 2003 through 2007. AVUT corrected the Manzanres UCAs that had been transposed for the published time period. We apologize for any inconvenience this may cause.

  • Ignacio Plant and San Juan Basin
    September 23, 2013

    The Asset Valuation Unbundling Team (AVUT) updated the Unbundling Cost Allocations (UCAs) for the San Juan Conventional Transportation System and Ignacio Processing Plant for 2006-2010.

    AVUT calculated new Transportation UCAs for the Otero, Lybrook and Buena Suerte Transportation Systems, and new Processing UCAs for the Huerfano Gas Plant (2007 - July 2013).

    To assist industry, AVUT published four documents relating to unbundling Transportation Systems and Processing Plants to the methodology section. These documents contain suggested methods for approaching an unbundling situation and identifying data needs.

  • Val Verde Plant and Transportation
    July 2nd, 2013

    The Asset Valuation Unbundling Team (AVUT) updated the Unbundling Cost Allocations (UCAs) for the Val Verde Transportation System and Treatment Plant for calendar years 2006 through 2010. AVUT updated these values because the team received more accurate information concerning Val Verde.

    AVUT modified all values for Val Verde with the exception of the Processing UCAs. AVUT added a new set of values to distinguish between the El Paso andTranswestern mainlines.