MountainWest Pipeline - Rock Springs Station (Tran)
ROCK SPRINGS, WY · SWEETWATER COUNTY · NAICS 486210
Data updated May 2026
MountainWest Pipeline - Rock Springs Station (Tran) sits in the upper third of EPA GHGRP reporters by latest CO₂e (#2,427 of 8,713 nationally, #38 of 132 in WY).
- National rank #2,427 of 8,713 GHGRP facilities
- #38 of 132 in WY
- #246 of 2,099 in Petroleum and Natural Gas Systems
- 1.8% of THE WILLIAMS COS parent CO₂e
- 2023 mix: 7.3% non-CO₂ (CH₄-led)
- +19.9% since 2011
MountainWest Pipeline - Rock Springs Station (Tran) vs all U.S. GHGRP facilities
Where this site's latest reported Scope 1 CO₂e sits among every EPA GHGRP reporting facility
112,740 2427th of 8713 higher than 6,286 of 8,713 facilities
GHGRP facilities, banded by latest reported CO₂e (MT)
Each bar is a band; taller bars hold more facilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA Greenhouse Gas Reporting Program · 2023
Facility footprint context
This site accounts for 1.8% of THE WILLIAMS COS reported parent CO₂e (113K MT of 6.2M MT ; #16 of 65 GHGRP facilities under that parent ). Inside the EPA Petroleum and Natural Gas Systems sector it ranks #246 of 2,099 facilities by latest CO₂e. Shares use GHGRP facility rollups only, not Scope 2/3 or non-reporting sites.
2023 gas mix desk
Of 113K MT CO₂e reported for 2023, non-CO₂ gases are 7.3% , led by CH₄ at 7.3% . Component shares use this facility's GHGRP CO₂ / CH₄ / N₂O rows for that year (already CO₂e-weighted).
- CO₂
- 92.7%
- 104K MT
- CH₄
- 7.3%
- 8K MT
- N₂O
- 0.1%
- 58 MT
Emissions growth across reporting years
| Year | Total CO2e (MT) |
|---|---|
| 2023 | 112,740 |
| 2022 | 89,150 |
| 2021 | 104,490 |
| 2020 | 86,443 |
| 2019 | 79,408 |
| 2018 | 86,546 |
| 2017 | 80,666 |
| 2016 | 81,653 |
| 2015 | 74,827 |
| 2014 | 100,799 |
| 2013 | 98,173 |
| 2012 | 100,079 |
| 2011 | 94,011 |
Facility insight: MountainWest Pipeline - Rock Springs Station (Tran)
MountainWest Pipeline - Rock Springs Station (Tran) (GHGRP ID 1005989) is a high-volume reporter at 113K MT CO₂e in 2023 from ROCK SPRINGS, WY (#2,427 of 8,713 nationally) under Petroleum and Natural Gas Systems (NAICS 486210).
From 2011 to 2023, reported CO₂e rose 19.9% (peak 113K MT). This facility has filed every year from 2011 to 2023, a complete 13-year record.
Frequently Asked Questions
Where does MountainWest Pipeline - Rock Springs Station (Tran) rank among U.S. GHGRP facilities? ▼
According to the EPA Greenhouse Gas Reporting Program, MountainWest Pipeline - Rock Springs Station (Tran) ranks #2,427 of 8,713 reporting facilities by latest reported CO₂e, and #38 of 132 facilities in WY (same sort as the state facility table). See /methodology#corpus-placement.
What share of GHGRP facilities report less CO₂e than MountainWest Pipeline - Rock Springs Station (Tran)? ▼
MountainWest Pipeline - Rock Springs Station (Tran)'s 113K MT CO₂e is higher than 6,286 of the 8,713 GHGRP facilities with reported emissions (72%), an exact count from the full corpus, not an estimate.
How much CO2 does MountainWest Pipeline - Rock Springs Station (Tran) emit? ▼
MountainWest Pipeline - Rock Springs Station (Tran) reported 113K MT CO2e in 2023.
What share of THE WILLIAMS COS does MountainWest Pipeline - Rock Springs Station (Tran) represent? ▼
MountainWest Pipeline - Rock Springs Station (Tran) accounts for 1.8% of THE WILLIAMS COS's reported GHGRP CO₂e (113K MT of 6.2M MT), ranking #16 of 65 facilities under that parent.
What is MountainWest Pipeline - Rock Springs Station (Tran)'s 2023 CO₂ / CH₄ / N₂O mix? ▼
In 2023, non-CO₂ gases were 7.3% of reported CO₂e at MountainWest Pipeline - Rock Springs Station (Tran), with CH₄ the larger non-CO₂ share at 7.3% (CO₂ 92.7%). Shares use the facility's GHGRP gas components for that year.
Where does MountainWest Pipeline - Rock Springs Station (Tran) rank inside Petroleum and Natural Gas Systems? ▼
Among EPA GHGRP facilities tagged Petroleum and Natural Gas Systems, MountainWest Pipeline - Rock Springs Station (Tran) ranks #246 of 2,099 by latest reported CO₂e.
Is MountainWest Pipeline - Rock Springs Station (Tran) reducing emissions? ▼
Over 13 reporting years (2011–2023), MountainWest Pipeline - Rock Springs Station (Tran)'s emissions have increased by 19.9%. This may reflect expanded operations or increased production.
Nationwide facilities with similar CO₂e or sector
Peer sets outside WY for a top-third GHGRP emitter: CO₂e totals first, then Petroleum and Natural Gas Systems neighbors.
Similar reported CO₂e
Nearest latest-year facility totals outside WY (113K MT here).
Similar Petroleum and Natural Gas Systems CO₂e
Nearest same-sector facility totals outside WY.