East Cheyenne Gas Storage, LLC Submits Supplemental Response to FERC Staff Engineering Information Request

East Cheyenne Gas Storage, LLC, a subsidiary of Tallgrass Energy, LP, has submitted a supplemental response to the Federal Energy Regulatory Commission (FERC) in response to their engineering information request dated May 9, 2025. The submission pertains to the company's application to abandon certain certificated natural gas storage capacity and amend the certificate of public convenience and necessity issued by the Commission on August 2, 2010. The company's initial responses to the request were submitted on May 16, 2025, and supplemental responses on May 23, 2025, but due to administrative oversight, an incomplete Attachment 1 was submitted. This supplemental response, submitted on May 30, 2025, provides the revised Attachment 1 to address Request No. 3 of the May 9 Data Request.

Key Takeaways:

• East Cheyenne Gas Storage, LLC has submitted a supplemental response to the FERC staff engineering information request dated May 9, 2025, in the context of their application to abandon certificated natural gas storage capacity.
• The company's initial responses to the request were submitted on May 16 and 23, 2025, but an incomplete Attachment 1 was provided due to administrative oversight.
• The supplemental response, submitted on May 30, 2025, includes a revised Attachment 1 to address Request No. 3 of the May 9 Data Request.
• The attachment provides an updated table listing all the authorized certificated facilities for the East Cheyenne Storage Facility, including certification docket numbers, construction or installation status, and abandonment or authorization status.
• The table also includes information on the most current docket reference for each facility, as well as the final authorized configuration and status listed along with the final docket reference.
• Chuck Weinstein, Principal Engineer - Reservoir Simulation, serves as the respondent for the submission.

Statistics:

• 2 (August 2, 2010) - the date the original certificate of public convenience and necessity was issued.
• 6 (six different dockets) - the number of Commission dockets referenced in the original certificate amendment.
• 4 (four) - the number of years between the 2010 Order and the current application.
• 2 (two) - the number of responses submitted by East Cheyenne Gas Storage, LLC to the May 9 Data Request.

Sources:

• East Cheyenne Gas Storage, LLC, 132 FERC P 61,097 (2010) ("2010 Order")
• 18 CFR SS 385.2010 (2024)
• Docket No. CP25-95-000
• Docket No. CP10-34-000
• Docket No. CP11-40-000
• Docket No. CP12-35-000
• Docket No. CP12-124-000
• Docket No. CP14-486-000
• Docket No. CP16-25-000
• Docket No. CP18-11-000
• May 9, 2025 - the date of the FERC staff engineering information request
• May 16, 2025 - the date of the initial response submission
• May 23, 2025 - the date of the supplemental response submission
• May 30, 2025 - the date of the supplemental response submission