The proposed transaction includes approximately 600 miles of crude pipelines, 1.2 million barrels of storage and a 49% non-operated interest in Powder River Gateway.
Published by Allstream Insiders
Allstream Insiders Summary
Plains has agreed to acquire SCM PR II, LLC from subsidiaries of Tailwater Capital and The Energy and Minerals Group for approximately $585 million in cash. The Silver Creek Midstream business operates a Powder River Basin crude-gathering network connected to Plains’ Rockies infrastructure at Guernsey and Fort Laramie.
What Infrastructure Is Included?
| Asset or operating measure | Plains-reported scope |
|---|---|
| Gathering and transmission pipelines | Approximately 600 miles |
| Operating capacity | More than 350,000 barrels per day |
| Current throughput | Approximately 125,000 barrels per day |
| Operational storage | Approximately 1.2 million barrels |
| Powder River Gateway joint venture | 49% non-operated interest, including Iron Horse and Powder River Express |
Plains Targets Fourth-Quarter Closing
Plains expects the acquisition to close in the fourth quarter of 2026. Completion remains subject to customary conditions, including federal antitrust clearance.

Courtesy of Plains
Transaction Highlights:
- Expands Plains’ Powder River Basin footprint and increases direct connectivity to producer supply in an area supported by more than 20 years of remaining drilling locations at current activity levels, with continued production growth expected over the next several years
- Enhances producer access to Plains’ integrated transportation network, including additional upstream gathering and transmission capabilities in the Powder River Basin and connectivity to Plains’ long-haul assets that deliver crude oil volumes to Cushing
- Strengthens Plains’ Rockies franchise by adding a gathering system supported by a diversified portfolio of high-quality customers, 915,000 dedicated acres across long-term acreage dedications and minimum volume commitments, and a weighted-average contract tenor of more than eight years
- Creates commercial and operational opportunities for growth with ~125,000 barrels per day of current throughput and an integrated platform that is expected to drive synergies and enhance Plains’ long-term earnings and cash flow
Allstream Perspective: Gathering-to-Long-Haul Integration
The transaction’s industrial significance is the connection between producer gathering and Plains’ existing long-haul network. Plains expects the acquisition to strengthen connectivity to transportation routes serving Cushing. That is a projected integration benefit, not a completed operational result.
The distinction between capacity and throughput is important: a system’s stated operating capacity is not the volume it currently transports, nor does unused capacity establish a need for construction. Likewise, the 49% joint-venture interest is non-operated and should not be read as Plains assuming operational control of every asset in that venture.
For suppliers and contractors, the announcement concerns an acquisition of existing infrastructure rather than a defined expansion program. Future integration work could involve engineering, controls, pipeline integrity, maintenance or logistics services, depending on the buyers’ and operators’ plans. These are conditional execution categories—not announced contracts, solicitations or available bid packages.





