Steckman Ridge, LP submits its semiannual report for the reporting period May 1, 2011 through October 31, 2011 under CP08-15.

November 30, 2011 Ms. Kimberly D. Bose, Secretary Federal Energy Regulatory Commission 888 First Street, N.E. Washington, D.C. 20426 Re: Steckman Ridge, LP CP08-15-000 Steckman Ridge Project Dear Ms. Bose: On June 5, 2008, the Federal Energy Regulatory Commission (Commission) issued a certificate order (June 5 Order) in the above-referenced docket granting Steckman Ridge, LP (Steckman Ridge) the authority to construct, own, and operate the Steckman Ridge Storage Project. 1 Pursuant to Engineering Condition 4 of Appendix A to the June 5 Order, Steckman Ridge hereby submits its Semi-Annual Report for the period from May 1, 2011 to October 31, 2011. The semi-annual report contains Critical Energy Infrastructure Information (CEII). In accordance with Order No. 630, et seq. 2 and Order No. 662, 3 the report is enclosed separately and should be treated as confidential. The report is marked Critical Energy Infrastructure Information Do Not Release, in accordance with Sections 388.112(b) and 388.113 of the Commissions regulations, 4 and is for use by the Commission Staff only and not to be released to the public. 1 Steckman Ridge, LP, 123 FERC 61,248 (2008). 2 Critical Energy Infrastructure Information, Order No. 630, FERC Stats. & Regs. Regulations Preambles 31,140 (2003), 68 Fed. Reg 9857 (Mar. 3, 2003), order on rehg., Order No. 630-A, 104 FERC 61,106 (2003), 68 Fed. Reg. 46456 (Aug. 6, 2003). 3 Critical Energy Infrastructure Information, Order No. 662, FERC Stats. & Regs. Regulations Preambles 31,189, 70 Fed. Reg. 37031 (2005). 4 18C.F.R. 388.112(b), 388.113 (2011). Should you have any questions, please feel free to contact Austin Isensee at (713) 627-4121 or the undersigned at (713) 627-4488. Sincerely, /s/ Berk Donaldson ______________ Berk Donaldson, Director, Rates and Certificates c: Maggie Suter, FERC Staff