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Denbury Riley Ridge to Natrona Project CO2

Project Information
Sector: Pipelines
Project Category: 
FAST-41 Covered Projects
Project Status: 
In Progress
Description: 

The Riley Ridge to Natrona Project (Project) consists of three right-of-way grant applications:  (1) the Riley Ridge Carbon Dioxide (CO2) Pipeline Project, (2) the Bairoil to Natrona CO2 Pipeline Project, and (3) right-of-way for a 230-kilovolt (kV) transmission line to supply energy to the proposed Riley Ridge Sweetening Plant. It is a 243-mile project crossing through Fremont, Sublette, Sweetwater and Natrona counties in Wyoming on federal, state and private lands (191 miles on BLM lands). If approved, the Project would include the proposed Riley Ridge Sweetening Plant where H2S would be separated from the CO2 stream and injected into a deep geological formation via two proposed adjacent hydrogen sulfide (H2S) injection wells.

As proposed, the Riley Ridge to Sweeting Plant segment would include 31 miles of 16-inch pipeline transporting liquid H2S and CO2 from the existing Riley Ridge Treating Plant located 18 miles southwest of Big Piney, Wyoming, to the proposed Riley Ridge Sweetening Plant to be located 12 miles northeast of LaBarge, Wyoming. From the proposed Riley Ridge Sweetening Plant, a 24-inch pipeline would transport liquid CO2 129 miles through Sublette and Sweetwater counties to the Bairoil Interconnect located 50 miles northwest of Rawlins, Wyoming. The Bairoil to Natrona segment would include 83 miles of 24-inch pipeline transporting liquid CO2 from the Bairoil Interconnect through Fremont and Natrona counties to the Greencore Pipeline at the Natrona Hub 30 miles west of Casper, Wyoming.

Permitting Timeline

Action Agency Target Completion Status
Right-of-Way Authorization (DOI-BLM)
Milestones:
Initial application received
Complete
Completed application received
Issuance of decision for permit/approval.
Planned
Target: 03/30/2018
Notice to proceed
Review Terminated with no decision
Department of Interior 03/30/2018 In Progress
Environmental Impact Statement (EIS)
Milestones:
Issuance of Notice of Intent to prepare an Environmental Impact Statement (EIS)
Complete 06/09/2014
Target: 06/09/2014
Scoping
Complete 07/09/2014
Target: 07/09/2014
Official Notice of Availability of a Draft EIS published in the Federal Register
In Progress 01/27/2017
Official Notice of Availability of a Final EIS published in the Federal Register
In Progress
Target: 01/25/2018
Official Notice of Availability of a Supplemental Draft EIS published in the Federal Register
N/A
Official Notice of Availability of a Supplemental Final EIS published in the Federal Register
N/A
Issuance of Record of Decision or combined Final EIS / Record of Decision
Planned
Target: 02/23/2018
Issuance of an Amended Record of Decision
Environmental Protection Agency 02/23/2018 In Progress 02/23/2018
Endangered Species Act Consultation - FWS
Milestones:
Date of Request for formal consultation received
Consultation Initiation Date
Final Biological Opinion Issued
Fish and Wildlife Service (Cooperating under FAST-41), (Cooperating under NEPA) In Progress
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