Rockies Express (REX) (Rockies, Appalachia, Midwest): 51 active notices, 17 rated severity 4–5; 1 posted in the last 7 days. 1 outage in effect today (no volume stated) at Bertrand Compressor Station Segment 250. Capacity Offline →
Free: this page refreshes several times a day (delayed) — email & Telegram alerts on a 1-hour delay, severity 4–5 only.
Pro ($149/mo): Real-time alerts within ~2 minutes of posting, full AI trading note. See plans →
Rockies Express
[MAINTENANCE] REX MAINTENANCE SCHEDULE FOR NOVEMBER 2026
REX declared a force majeure at Hamilton Compressor Station effective ID1 cycle Gas Day October 7, 2026, and until further notice. Segment 360 eastbound capacity is restricted to 2.274 Bcf/d, with upstream segments 370 and 380 also curtailed to 2.657 and 2.692 Bcf/d respectively. Primary firm, secondary firm, and AOR/ITS quantities are all at risk of not being scheduled.
REX Hamilton FM caps Seg 360 E-to-W flow at 2.274 Bcf/d with firm and secondary firm service at risk; expect bullish pressure at Lebanon Hub and Midwest delivery points as westbound throughput tightens, with no clear HH directional signal given REX's Midwest-facing flow path.
Reroute: Limited: Trailblazer Pipeline (TPC) is the primary Rockies eastbound alternative, but REX and Trailblazer share Bertrand Compressor Station -- they are not independent reroutes for one another, limiting offset capacity. Zone 3 Appalachian westbound reversals on REX may partially compensate for Midwest demand, but firm service curtailment risk leaves limited near-term relief.
View original notice text
Loading…
Rockies Express
[MAINTENANCE] REX MAINTENANCE SCHEDULE FOR OCTOBER 2026 - UPDATE #1
REX Update #18 confirms Segment 250 (West-to-East) remains restricted to 1.094 Bcf/d at Bertrand Compressor Station effective Gas Day October 1, 2026, until further notice. At this restriction level, primary firm, secondary firm, and ITS/AOR quantities are all at risk of not being scheduled. No restoration timeline has been provided across 18 updates, and this is a fresh notice (Revision 1) posted September 30, 2026.
REX Segment 250 W-to-E cap of 1.094 Bcf/d with primary firm at risk is a sustained, material Rockies-to-Midwest constraint; expect bullish pressure at Lebanon Hub and Midwest delivery points, and note that Trailblazer shares Bertrand CS and cannot serve as an independent reroute, leaving no effective bypass for the affected volumes.
Reroute: None: REX and Trailblazer share Bertrand Compressor Station -- both are simultaneously constrained by the same facility, so Trailblazer cannot serve as an independent reroute for REX Segment 250 flows.
View original notice text
Loading…
Rockies Express
[MAINTENANCE] REX MAINTENANCE SCHEDULE FOR OCTOBER 2026
REX declared force majeure at Chandlersville Compressor Station (Segment 380) on September 7, 2026, limiting eastbound-to-westbound capacity to 2,835 MDth/d (2.835 Bcf/d) for the ID3 cycle on Gas Day September 7, and 2,772 MDth/d (2.772 Bcf/d) from the Evening Cycle of Gas Day September 8 until further notice. Primary firm, secondary firm, and AOR/ITS service are all explicitly at risk of not being scheduled, indicating curtailments across all service classes. No restoration timeline has been provided.
REX force majeure at Chandlersville CS (Seg 380) limits east-to-west capacity to 2.772 Bcf/d until further notice with all firm service classes at risk; REX Zone 3 basis was -0.250 vs Henry Hub as of 2026-09-04 and is subject to further pressure as westbound Appalachian-origin receipts back up at the Lebanon Hub while downstream Midwest and Ohio Valley markets tighten -- expect bullish Zone 3 and Lebanon Hub basis and bearish pressure on any westbound receipt points unable to schedule.
Reroute: Moderate: REX Zone 3 westbound Appalachian volumes have partial alternatives via Rover Pipeline, TETCO M2, and TCO for Midwest and Ohio Valley markets, but these pipes serve different downstream points and cannot fully replace REX westbound throughput at this scale; no single alternative approaches 2.772 Bcf/d of replacement capacity on short notice.
Rockies Express is restricting Segment 250 capacity to 1.085 Bcf/d westbound-to-eastbound (West to East direction) effective timely cycle Gas Day September 3, 2026, until further notice, due to an ongoing operational issue at Bertrand Compressor Station (Update #17). At this restriction level, primary firm, secondary firm, and ITS/AOR service classes are all explicitly at risk of curtailment. No restoration timeline has been provided.
REX Segment 250 restricted to 1.085 Bcf/d eastbound with primary firm at risk -- a multi-week unresolved constraint with no end date; REX Zone 3 delivered basis has averaged -0.313 vs HH over the five trading days ended 2026-09-01 (most recently -0.285 on 2026-09-01) and should widen further bearish as eastbound throughput remains capped, while Rockies/Cheyenne Hub faces bearish pressure from trapped westbound supply; Trailblazer shares Bertrand CS and is not an independent reroute.
Reroute: None: Trailblazer Pipeline (TPC) shares Bertrand Compressor Station with REX and is simultaneously constrained by the same facility -- the two are not independent reroutes for each other. The REX/TPC SALINE and TPC/REX LONE TREE WELD REC interconnects are both shown at 100% utilization (0.642 Bcf/d and 0.579 Bcf/d respectively, zero headroom) in current capacity data, corroborating the constraint.
View original notice text
Loading…
Rockies Express
[MAINTENANCE] REX MAINTENANCE SCHEDULE FOR SEPTEMBER 2026 - UPDATE #2
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #16
SEV 5/5
Compressor Issue1.075 Bcf/dUntil Further Notice
REX Bertrand Compressor Station operational issue (Update #16) restricts Segment 250 westbound-to-eastbound capacity to 1.075 Bcf/d effective Gas Day August 1, 2026, until further notice. Primary firm, secondary firm, and ITS/AOR service are all explicitly at risk of not being scheduled. No restoration timeline has been provided.
REX Segment 250 restricted to 1.075 Bcf/d with primary and secondary firm at risk; expect bullish pressure at Midcontinent and downstream Midwest basis points as eastbound Rockies takeaway is curtailed, with bearish pressure at CIG/Cheyenne Hub as Rockies gas backs up -- no restoration timeline adds upward severity bias.
Reroute: None: Trailblazer Pipeline leases capacity at Bertrand Compressor Station on REX -- when REX Segment 250 is constrained at Bertrand, Trailblazer is simultaneously affected and cannot serve as an independent reroute option. CIG provides some Rockies egress but cannot replace REX eastbound volumes at this scale.
View original notice text
Loading…
Rockies Express
[MAINTENANCE] REX MAINTENANCE SCHEDULE FOR AUGUST 2026 - UPDATE #1
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #15
SEV 5/5
Compressor Issue1.096 Bcf/dUntil Further Notice
Rockies Express Pipeline has restricted capacity on Segment 250 (West to East direction) to 1.096 Bcf/d at Bertrand Compressor Station effective Gas Day July 1, 2026, until further notice. This is Update #15, indicating an ongoing unresolved operational issue. Primary firm, secondary firm, and interruptible/AOR service are all at risk of not being scheduled, meaning firm curtailments are actively in play with no restoration timeline.
REX Segment 250 restriction to 1.096 Bcf/d with primary and secondary firm service at risk signals active firm curtailments on a major Rockies-to-Midcontinent corridor with no end date; expect bullish pressure at downstream REX Zone 3 and Midcontinent delivery points and bearish pressure at Rockies basin hubs (CIG/Opal) as eastbound takeaway is constrained.
Reroute: None: Trailblazer Pipeline leases capacity at Bertrand Compressor Station on REX -- when REX Segment 250 is constrained at Bertrand, Trailblazer is simultaneously affected and cannot serve as an independent reroute. No viable alternative exists for full Rockies-to-Midcontinent eastbound reroute.
View original notice text
Loading…
Rockies Express
[MAINTENANCE] PRELIMINARY REX 2026 MAINTENANCE SCHEDULE UPDATED JUNE 2026
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #14
SEV 5/5
Compressor Issue1.115 Bcf/dUntil Further Notice
Rockies Express Bertrand Compressor Station operational issue (Update #14) restricts Segment 250 West-to-East capacity to 1.115 Bcf/d effective Gas Day June 2, 2026, until further notice. Primary firm, secondary firm, and interruptible service are all at risk of not being scheduled. No restoration timeline has been provided.
REX Segment 250 constrained to 1.115 Bcf/d W-to-E with primary and secondary firm at risk; Trailblazer shares Bertrand CS and is simultaneously affected -- expect bullish pressure at Midcontinent and Chicago Citygate as Rockies takeaway is curtailed with zero independent reroute.
Reroute: None: REX and Trailblazer share Bertrand Compressor Station -- both are simultaneously constrained by the same facility, leaving no independent reroute for Rockies eastbound volumes. CIG provides limited alternative egress but cannot absorb full displaced volumes.
View original notice text
Loading…
Rockies Express
[MAINTENANCE] PRELIMINARY REX 2026 MAINTENANCE SCHEDULE UPDATED MAY 2026
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
Rockies Express
[FORCE MAJEURE] HAMILTON COMPRESSOR STATION FORCE MAJEURE
SEV 5/5
Force Majeure0.316 Bcf/dUntil Further Notice
Rockies Express declared a force majeure at Hamilton Compressor Station effective Gas Day May 19, 2026, cutting 0.316 Bcf/d of operating capacity across Segments 360, 370, and 380 until further notice. Primary firm, secondary firm, and AOR/ITS service classes are all at risk of curtailment. This event is independent of and additive to the prior scheduled maintenance under Notice ID 13721.
REX force majeure removes 0.316 Bcf/d of westbound capacity across three segments with all service classes at risk; combined with existing Notice 13721 maintenance cuts, expect bullish pressure on Appalachian and Midwest basis (Dominion South, TETCO M2, Chicago Citygate) as Marcellus/Utica westbound takeaway tightens.
Reroute: Moderate: Rover Pipeline, TETCO M2, and TCO serve overlapping Appalachian westbound markets and may absorb some displaced volumes, but the additive impact of concurrent REX maintenance (Notice 13721) reduces available spare capacity on alternative routes.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] TEMPORARY CHANGES TO THE PALS SRO PROGRAM CAPACITY - UPDATE #2
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #13
SEV 5/5
Compressor Issue1.118 Bcf/dUntil Further Notice
Rockies Express Bertrand Compressor Station is restricting Segment 250 westbound-to-eastbound (West to East) capacity to 1.118 Bcf/d until further notice, effective Gas Day May 1, 2026. This is Update #13, indicating a prolonged unresolved operational issue with no restoration timeline. Primary firm, secondary firm, and interruptible service are all at risk of not being scheduled, indicating curtailments across all service classes.
REX Segment 250 restricted to 1.118 Bcf/d W-to-E with primary and secondary firm at risk; expect bearish pressure at Rockies basin hubs (CIG, Cheyenne) as eastbound takeaway is curtailed and bullish pressure at Midcontinent and Chicago Citygate basis points versus Henry Hub -- no restoration timeline adds further upside risk to downstream markets.
Reroute: None: Trailblazer Pipeline leases capacity at Bertrand Compressor Station on REX -- a Bertrand CS constraint simultaneously affects Trailblazer, eliminating it as an independent reroute option. CIG provides some Rockies egress southward but cannot replicate REX eastbound volumes into the Midcontinent.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #12
SEV 4/5
Compressor Issue1.174 Bcf/dUntil Further Notice
Rockies Express Pipeline is restricting Segment 250 (Zone 1, West-to-East direction) to 1,174 MDth/d (1.174 Bcf/d) due to an ongoing operational issue at Bertrand Compressor Station, effective evening cycle April 1, 2026, until further notice. This is Update #12, indicating a prolonged unresolved event. Primary firm, secondary firm, and interruptible service are all at risk of curtailment at this capacity level.
Bertrand CS constraint caps REX Zone 1 eastbound at 1.174 Bcf/d until further notice, with all service classes at curtailment risk; Trailblazer shares this facility and is simultaneously constrained, leaving zero independent reroute -- expect bearish Rockies basis pressure and bullish Midcontinent/Chicago Citygate basis widening vs Henry Hub.
Reroute: None: REX and Trailblazer share Bertrand Compressor Station -- both are simultaneously constrained by the same facility, and no independent reroute exists for Rockies eastbound volumes affected by this outage.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #11
SEV 5/5
Compressor Issue1.103 Bcf/dUntil Further Notice
Rockies Express Pipeline has restricted capacity on Segment 250 (West-to-East direction) to 1,103 MDth/d (1.103 Bcf/d) effective March 31, 2026, until further notice due to an ongoing operational issue at Bertrand Compressor Station. This is Update #11, indicating a prolonged unresolved outage. Primary firm, secondary firm, and interruptible service (ITS/AOR) are all at risk of not being scheduled, meaning even firm shippers face potential curtailments with no restoration timeline provided.
REX Segment 250 restriction to 1.103 Bcf/d with all service classes including primary firm at risk tightens Rockies-to-Midcontinent eastbound takeaway; expect bearish pressure at CIG and Opal as Rockies basin gas backs up, with bullish signals at Midcontinent and REX Zone 3 downstream delivery points -- Trailblazer is NOT an independent reroute as it shares Bertrand CS.
Reroute: None: Trailblazer Pipeline leases capacity at Bertrand Compressor Station on REX and is simultaneously constrained by the same facility failure -- these are not independent reroute options. No viable alternative exists for affected West-to-East REX volumes.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #10
SEV 5/5
Compressor Issue1.174 Bcf/dUntil Further Notice
Bertrand Compressor Station on REX Segment 250 remains operationally impaired, restricting eastbound capacity to 1.174 Bcf/d until further notice. Primary firm, secondary firm, and interruptible service are all at risk of not being scheduled -- a rare and serious escalation beyond interruptible-only curtailments. No restoration timeline has been provided.
REX Segment 250 eastbound restriction to 1.174 Bcf/d with primary firm service at risk signals severe Rockies takeaway constraint; expect bearish pressure at CIG/Cheyenne Hub as Rockies gas backs up, with bullish pressure at Midcontinent and Chicago Citygate as eastbound supply is reduced.
Reroute: None: Trailblazer Pipeline leases capacity at Bertrand Compressor Station on REX -- both pipes are simultaneously constrained by the same facility failure. No independent reroute exists for eastbound Rockies volumes.
View original notice text
Loading…
Rockies Express
[MAINTENANCE] PRELIMINARY REX 2026 MAINTENANCE SCHEDULE UPDATED MARCH 2026
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #7
SEV 4/5
Compressor Issue1.185 Bcf/dUntil Further Notice
Rockies Express Bertrand Compressor Station operational issue restricts Segment 250 West-to-East capacity to 1.185 Bcf/d until further notice, effective January 1, 2026. Primary firm, secondary firm, and interruptible service are all at risk of curtailment. This is Revision 3 of the notice but escalation triggers are present: capacity loss exceeds 500,000 MMBtu/day, firm service is explicitly at risk, and no restoration timeline exists.
REX Segment 250 restricted to 1.185 Bcf/d eastbound with primary and secondary firm at risk; expect bearish pressure at Rockies/CIG basis as gas backs up, with bullish pressure at Midcontinent and Chicago Citygate as eastbound Appalachian and Midcontinent supply tightens.
Reroute: None: Trailblazer Pipeline leases capacity at Bertrand Compressor Station on REX -- when REX Zone 1 is constrained at Bertrand, Trailblazer is simultaneously affected and cannot serve as an independent reroute option.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] TEMPORARY CHANGES TO THE PALS SRO PROGRAM CAPACITY
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] CHEYENNE COMPRESSOR STATION OPERATIONAL ISSUE
SEV 4/5
Compressor Issue0.985 Bcf/dUntil Further Notice
REX experienced an operational issue at Cheyenne Compressor Station on January 20, 2026, reducing eastbound capacity on Segment 200 to 0.985 Bcf/d until further notice. This is Revision 3 of the notice, but the end date remains open-ended with primary firm, secondary firm, and ITS/AOR quantities all at risk of curtailment. No restoration timeline has been provided.
REX Segment 200 eastbound capacity capped at 0.985 Bcf/d with firm service at risk and no restoration timeline; expect bullish pressure on Midcontinent and Chicago Citygate basis as Rockies gas is unable to move east, with mild bearish pressure on Rockies/CIG hub as supply backs up in the basin.
Reroute: Limited: Trailblazer Pipeline serves the same Rockies-to-Midcontinent eastbound corridor, but Trailblazer leases capacity at Bertrand CS on REX -- simultaneous constraints at Cheyenne CS and Bertrand CS are correlated and cannot be treated as independent reroutes. CIG provides some partial alternative for DJ Basin volumes but cannot replace REX Segment 200 eastbound throughput at scale.
View original notice text
Loading…
Rockies Express
[OVER-UNDER PERFORMANCE] OHIO RIVER SYSTEM BEARWALLOW RECEIPT POINT (LOCATION 60060) UNDERPERFORMANCE
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #8
SEV 4/5
Compressor Issue1.181 Bcf/dUntil Further Notice
Bertrand Compressor Station on REX Segment 250 remains restricted to 1.181 Bcf/d westbound-to-eastbound (West to East direction), effective February 3, 2026 and continuing until further notice -- this is Update #8 with no restoration timeline. Primary firm, secondary firm, and interruptible service are all at risk of curtailment. The event originated February 2, 2026 and remains unresolved as of this revision.
REX Segment 250 restricted to 1.181 Bcf/d eastbound with firm curtailment risk; expect bullish pressure at Midcontinent and Chicago Citygate basis as Rockies/Appalachian eastbound volumes remain constrained, with no restoration timeline keeping the market signal elevated.
Reroute: None: Trailblazer Pipeline leases capacity at Bertrand Compressor Station on REX -- when REX Bertrand is constrained, Trailblazer is simultaneously affected, making these two pipelines correlated rather than independent reroute alternatives. No viable bypass exists for this corridor.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] TEMPORARY CHANGES TO THE PALS SRO PROGRAM CAPACITY
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
Rockies Express
[OPERATIONAL ALERT] BERTRAND COMPRESSOR STATION OPERATIONAL ISSUE - UPDATE #9
SEV 4/5
Compressor Issue1.187 Bcf/dUntil Further Notice
REX Bertrand Compressor Station remains operationally constrained as of Update #9, restricting Segment 250 westbound-to-eastbound capacity to 1.187 Bcf/d until further notice. Primary firm, secondary firm, and ITS/AOR service are all at risk of curtailment. No restoration timeline has been provided.
REX Segment 250 restricted to 1.187 Bcf/d with primary firm service at risk and no restoration date; expect bullish pressure at Midcontinent and Dawn Hub as Appalachian/Rockies eastbound takeaway remains constrained, with bearish pressure at Rockies origin points where gas cannot move east.
Reroute: None: Trailblazer Pipeline leases capacity at Bertrand CS on REX -- both pipes share this facility and are simultaneously constrained, eliminating any meaningful reroute for eastbound Rockies volumes.
View original notice text
Loading…
Rockies Express
[FORCE MAJEURE] JULESBURG COMPRESSOR STATION FORCE MAJEURE
SEV 5/5
Force Majeure1.045 Bcf/dUntil Further Notice
REX declared force majeure at Julesburg Compressor Station effective Gas Day March 2, 2026, reducing operating capacity through Segment 240 (west-to-east direction) to 1.045 Bcf/d until further notice. This is Revision 3 and the force majeure remains active with no restoration timeline; primary firm, secondary firm, and interruptible service are all at risk of curtailment. The end date of 12/31/9000 confirms an open-ended outage with no known resolution.
Active REX FM at Julesburg CS caps westbound-to-eastbound throughput on Segment 240 at 1.045 Bcf/d until further notice, with firm service curtailments confirmed at risk; expect bullish pressure on Midcontinent and Chicago Citygate basis as Rockies/DJ Basin gas loses eastbound takeaway, and bearish pressure at CIG/Cheyenne Hub as supply backs up in the basin.
Reroute: Limited: Trailblazer Pipeline (TPC) is the primary alternative for Rockies eastbound gas, but Trailblazer leases capacity at Bertrand CS on REX -- if the Julesburg FM affects shared infrastructure, Trailblazer reroute reliability is uncertain. CIG provides some alternative egress but does not serve the same downstream Midcontinent/Chicago markets.
View original notice text
Loading…
Rockies Express
[FORCE MAJEURE] JULESBURG COMPRESSOR STATION FORCE MAJEURE - LIFTED
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Loading…
About Rockies Express (REX)
Originally built to carry Rockies gas east; its eastern zone now mostly carries Appalachian gas west to Midwest markets. A key outlet for Marcellus and Utica supply.
Operated by
Tallgrass
Runs
Colorado’s Rockies basins across the Midwest to eastern Ohio
