99--Invitation for Offer Federal Gas from Cliffside Helium

INVITATION FOR OFFER FEDERAL GAS FROM CLIFFSIDE HELIUM ENRICHMENT UNIT IFO No. BLM-CHEU-001 April 2013 - March 2014 Introduction The Bureau of Land Management (BLM) of the U.S. Department of the Interior (DOI) is requesting written offers from pre-qualified companies (see Pre-Qualification and Credit Requirements) to purchase Federal gas produced from the Bureau of Land Management's (BLM) Cliffside Helium Enrichment Unit (CHEU). The BLM's CHEU is located in Potter County, Texas near the city of Amarillo. Production from the CHEU is delivered into El Paso Natural Gas' (El Paso) natural gas transmission system via El Paso's Cliffside lateral line. The BLM has contracted with El Paso for firm transportation over this lateral. This firm contract includes access to interconnects with Natural Gas Pipeline Company of America (NGPL) and El Paso Natural Gas (El Paso), also located in Potter County, Texas. Please note that we are selling all of this gas under a swing obligation on the daily market rather than using a baseload and swing component. The CHEU volume may increase or decrease through the term of this sale although BLM anticipates relatively stable production rates. To acquire the full details for applying go to: http://www.blm.gov/nm/amarillo. See attachment for full description