Permits
Permits checklist
2 pending · 2 granted · 1 checked, nothing on file
Approvals a campus like this normally needs (including an air permit for backup or on-site generators), and what we found.
- ◷Air permit, second generating site PendingTexas Commission on Environmental Quality · Oct. 9, 2026: filed by SMS Horizon EC1; association with Horizon is inferred; frozen by the state data center pause State agency · Oct. 2026
- ◷Property tax abatement PendingPecos County Memorial Hospital District and Pecos County · Nov. 18, 2025: on the Nov. 2025 agendas; no outcome found; percentage and term not public Local government · Nov. 2025
- ✓Air permit, 12 gas turbines (332 MW) GrantedTexas Commission on Environmental Quality · March 12, 2026: expedited; holder is Poolside LF Phase 2 DC Ops LLC State agency · Oct. 2026
- ✓Construction stormwater coverage GrantedTexas Commission on Environmental Quality · June 5, 2026: two contractors hold coverage; planned start June 23, 2026, end Mar. 2028 State agency · Oct. 2026
- –Checked, nothing on file: Utility and grid approval
Risks
Why it stopped, what could revive it
- HighAnchor tenant lostCoreWeave's lease ended, no replacement has signed, and a replacement would cover only about 400 MW of the original 2 GW. News report · April 2026
- HighFundingThe roughly $2B equity round failed and one report says turbine commitments and site work were cut back (unverified). News report · April 2026
- HighState permit freezeTexas has stopped issuing data center permits until a grid audit finishes, which freezes any further Poolside filings with the state. News report · Sept. 2026
- MediumNo construction evidenceNo construction was verified at the site and no hiring footprint was found for the campus. Company · Oct. 2026
- WatchStale listingsSome map sites still show CoreWeave as the tenant and the project as planned. News report · Oct. 2026
Power
Power and the grid
None energized or contracted yet · 332 MW permitted
On-site gas turbines (Puckett Road)Air-permitted
12 GE Vernova TM2500 units, simple cycle with emissions controls; permit held by a Poolside subsidiary since Mar. 2026 State agency · March 2026
Permitted
Other sources, size not disclosed
- Battery storage Plannedplanned, no size given Company · Oct. 2025
Related generation and energy contracts (context, not added to campus supply)
- Second generating site (SMS Horizon EC1) Pendinga separate company filed an air permit on Oct. 9, 2026 near the same intersection; link to Horizon is inferred from its name and location State agency · Oct. 2026
Getting on the grid
Who supplies what, what it costs, and what is still not public.
- Oct. 15, 2025Off-grid design announcedPoolside announces a behind-the-meter campus on aeroderivative gas turbines with battery storage. Company · Oct. 2025
- March 12, 2026Turbine air permit issuedTexas environmental regulators issue the standard permit for 12 turbines totaling 332.28 MW, three days after filing, under expedited review. see Permits
- Sept. 21, 2026State permit freezeThe governor orders regulators to stop issuing data center permits, including for fully off-grid projects, until a grid audit finishes. News report · Sept. 2026
- Oct. 9, 2026Second turbine applicationA power generation company files for another air permit at the Puckett Road intersection; it is pending under the freeze. see Permits
- Not setGas supply and utility service: none on recordNo retail utility arrangement was found, and no gas supply contract is public. Company · Oct. 2025
- A related ranch power company holds two other turbine registrations at the same address (2024 and 2025), so the Puckett Road site hosts more than Poolside's permit. State agency · Oct. 2026
Is it running?
Evidence from space
NO2 over the site, net of the rural background, was about the same in July–September 2026 (−1 µmol/m²) as a year earlier (0), and the rural background stayed flat (about 16 both summers). The satellite sees no new combustion large enough to stand out here. On record here: On-site gas turbines (Puckett Road), 332 MW, permitted. No rise fits a plant that is not running yet, or runs little; it does not prove either. The site itself is not fixed on record, so the box is centered on an approximate point and the reading is approximate too.
NO2 over the campus and over open country (µmol/m²)
What else could explain it
- Cities, highways, oil and gas fields and power plants in or near the box also emit NO2. Comparing the same months a year apart removes steady sources; a new source nearby would not cancel.
- Weather moves NO2 from day to day (wind, sunlight, cloud), and it builds up in winter. Subtracting the background box and comparing the same season a year apart removes most of that.
How this works: the Sentinel-5P satellite measures NO2 in the air over every point on Earth once a day, around 1:30 p.m. local time, in pixels about 5.5 by 3.5 km. NO2 comes from burning fuel (turbines, engines, traffic, power plants), so a rise over a site that open country does not share points to new combustion there. It shows combustion activity, not megawatts. The site box is about 15 km across; the background box is open country about 53 km away. We use only high-quality readings and drop days or weeks when cloud hides more than half of either box. Data: Copernicus Sentinel-5P (ESA), processed with the Copernicus Data Space Ecosystem Sentinel Hub statistics service.
Money
Money on record
$6.4B
investment estimate
stated in the county tax abatement notice, Nov. 2025 Local government · Nov. 2025
$626M
raised by Poolside through Oct. 2024
including a $500M Series B led by Bain Capital Ventures (press) News report · Oct. 2024
About $2B
funding round that failed
Nvidia was reported to be investing up to $1B in it; the Financial Times says the round was unsuccessful (press) News report · April 2026
Not on record: project-level financing: no debt or campus financing found News report · April 2026
Timeline
What happened, and what is due
SitePaper trailConstructionPowerPermitsMoneyLegalUpcoming
- Oct. 10, 2025Paper trail Poolside LF Phase 1 DC Ops LLC registered in Delaware and Texas
- Oct. 15, 2025Site Poolside announces Project Horizon: 2 GW in eight phases, with CoreWeave as anchor tenant on a 15-year lease Company · Oct. 2025
- Nov. 18, 2025Money Pecos County hospital district considers a property tax abatement for Poolside; outcome not found Local government · Nov. 2025
- Feb. 19, 2026Paper trail Poolside LF Phase 2 DC Ops LLC registered in Delaware and Texas
- March 12, 2026Permits Texas issues the 332 MW turbine air permit to a Poolside subsidiary State agency · Oct. 2026
- April 1, 2026Money The Financial Times reports Poolside's roughly $2B fundraising round was unsuccessful (press) News report · April 2026
- April 2, 2026Legal CoreWeave's anchor lease is reported to have fallen apart; Poolside begins seeking a replacement for up to 400 MW (press) News report · April 2026
- April 2026Money Poolside is reported to be seeking a replacement partner for about 400 MW; Google is reportedly no longer in discussion (press) News report · April 2026
- June 5, 2026Permits Texas grants construction stormwater coverage to two contractors for the site State agency · Oct. 2026
- Sept. 21, 2026Permits The governor freezes state data center permits, including off-grid projects News report · Sept. 2026
- Oct. 9, 2026Permits A second air permit application is filed near the Puckett Road site State agency · Oct. 2026
- Dec. 2026Permits Texas grid audit expected, which would end the permit freeze (press) News report · Sept. 2026
Construction activity
Since Oct. 2026: 1 satellite capture.
The buildings
Specs
559 to 568 acres
campus footprint, adjacent to Longfellow Ranch (developer figures differ)
712.55 acres
area disturbed, per the stormwater permits; start was planned for June 23, 2026
- Air cooling with liquid chip cooling: closed loop; non-potable groundwater (developer-side claim) Company · Oct. 2025
Who is involved
Owners, partners and builders
Owners and developers
- Poolside: AI company and developer
- Poolside Infrastructure Company: leads the build; Robert Bonar named CEO (June 2026, press)
- Poolside LF Phase 2 DC Ops LLC: holds the turbine permit
- Mitchell family (Longfellow Ranch): landowners
Customers
- CoreWeave: former anchor tenant
- Google: reported replacement talks, since ended (press)
Investors
- Bain Capital Ventures: led the $500M Series B
- Nvidia: reported prospective investor of up to $1B in the failed round
Builders and power
- Hill & Wilkinson Construction Group and GCON: stormwater permit holders
- SMS Horizon EC1: pending air permit applicant
- Longfellow Power LLC: ranch power company with two nearby turbine registrations
Decision-makers
- Texas Commission on Environmental Quality
- Pecos County Memorial Hospital District
Still unknown
Open questions
- A replacement tenant.
- Whether the tax abatement was approved.
- Any verified construction at the site.
- Whether the second permit applicant is part of Horizon.
Where this comes from
149 records from 34 documents
Drawn from news reports, state agency records, company statements, business registries, securities filings, local government records, public and commercial datasets and satellite captures, each kept with its date and source. The bar shows documents by type.
News report 13State agency 12Company 4SEC filing 3Local government 1Dataset 1Satellite 0
Evidence
Every quote behind this page
Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.
Power (22)
- On-site generation: 332.28 MW“183235 | Poolside LF Phase 2 DC Ops LLC | Fort Stockton | Pecos | TM2500 GEN 8 & TM2500 PLUS | 12 | 332.28”State agency · March 2026 · grade A
- Generator maker and model: GE Vernova TM2500 GEN 8 (6 units) and TM2500 PLUS (6 units)“TM2500 GEN 8 & TM2500 PLUS | 12 | 30.34 (unit 1-6), 25.04 (unit 7-12)”State agency · March 2026 · grade A
- Generating units on the permit: 12 turbines“Number of CTs: 12”State agency · March 2026 · grade A
- Stated campus size: 2,000 MW“a multiphased artificial intelligence datacenter campus with potential for up to 2 gigawatts of capacity broken into eight phases of 250 megawatts each”Local government · Nov. 2025 · grade A
- Stated campus size: 2,000 MW“Poolside, Inc anticipates a multiphased artificial intelligence datacenter campus with potential for up to 2 gigawatts of capacity broken into eight phases of 250 megawatts each”Local government · Nov. 2025 · grade B
- Source record“Today, we're announcing Project Horizon: a 2 GW AI campus in West Texas”Company · Oct. 2025 · grade B
- Stated campus size: 2,000 MW“a 2 GW AI campus in West Texas... developed in eight phases of 250 MW each”Company · Oct. 2025 · grade B
- Phases: 8 phases of 250 MW each“The campus will be developed in eight phases of 250 MW each, ensuring scalable, modular growth”Company · Oct. 2025 · grade B
- On-site power technology: Aeroderivative gas turbines, simple cycle, with SCR; battery storage planned“We've secured generation through aero-derivative turbines equipped with SCR systems... and battery storage to enhance reliability and load balancing”Company · Oct. 2025 · grade B
- Utility: none (behind-the-meter; no retail utility service arrangement found)“We've secured a 2 GW behind-the-meter AI campus”Company · Oct. 2025 · grade B
- Power plan: onsite (behind-the-meter gas, off-grid by design)“Designed as a next-generation, behind-the-meter AI campus”Company · Oct. 2025 · grade B
- Cooling: Air cooling with direct liquid chip cooling (closed loop, per developer-side descriptions)“Air cooling avoids the water-consumption challenges of desert regions”Company · Oct. 2025 · grade B
- Interconnection status: none found (behind-the-meter by design; no ERCOT queue position found)“Permit issuance is paused regardless of whether an applicant is in ERCOT's interconnection queue”News report · Oct. 2026 · grade C
- Stage: stalled, announced flagship is paper (no permit, no tenant, no financing); the only permitted asset is the separate 332.28 MW Puckett Road power site, itself unbuilt on current evidence“the partnership with CoreWeave began to fall apart late last year as Poolside was unable to stand up the first cluster of chips to CoreWeave's timeline”News report · Oct. 2026 · grade C
- DataCenterMap still lists Project Horizon as Planned with CoreWeave as anchor tenant on a 15-year lease, stale after the April 2026 termination“Poolside AI has partnered with CoreWeave, which will serve as an anchor tenant for the first 250 MW phase under a 15-year lease”News report · Oct. 2026 · grade C
- Partner search: Poolside is seeking a replacement partner, targeting commitments for up to ~400 MW of capacity (a fraction of the original 2 GW); reported talks with Google have ended (Financial Times reporting via DCD)“AI start-up Poolside is in talks with cloud providers, including Google, in hopes of securing a new partner for its Texas data center project”News report · Oct. 2026 · grade C
- Aggregator report citing Bloomberg: Poolside began cutting capital commitments to long-lead gas turbines and paused some site-preparation contracts to preserve cash through Q3 2026 (single-source aggregator chain; treat“Poolside had begun cutting its capital commitments to long-lead-time gas turbines and paused some site preparation contracts to preserve cash through Q3 2026”News report · April 2026 · grade C
- Interconnection status: Paused - no grid interconnection (behind-the-meter plan at the Longfellow Ranch area, Pecos County); the CoreWeave anchor-tenant agreement fell apart in late 2025 and the sponsor is seeking partne“the partnership with CoreWeave began to fall apart late last year as Poolside was unable to stand up the first cluster of chips to CoreWeave's timeline”News report · April 2026 · grade C
- Apollo Technical Texas tracker lists Project Horizon as Paused (2,000 MW, Fort Stockton, Pecos County)“Project Horizon | Poolside | Fort Stockton (Pecos County) | 2,000 | Paused”News report · April 2026 · grade C
- Address: Puckett Road power site (Poolside LF Phase 1/2): from Fort Stockton south on US-285 26.7 mi, left on Puckett Rd (2301 Puckett Road), about 27 mi south of Fort Stockton“FROM FORT STOCKTON, HEAD SOUTH ON N ALAMO ST/US HWY 285 S FOR 26.7MI. TURN LEFT ONTO PUCKETT RD AND GO 2.6 MI”News report · March 2026 · grade C
- Role of the on-site plant: prime (behind-the-meter primary supply by design)“a ground-up data-center development designed to give us long-term control over power, cost, and scale”Company · Oct. 2025 · grade C
- Grid operator: ERCOT (region only; campus is not grid-interconnected)“grid-interconnect redundancy to ensure continuity of supply”Company · Oct. 2025 · grade C
Money and contracts (31)
- Stated capital cost: 6400000000 USD“The best estimate of capital investment of all such improvements subject to the requested tax abatement is $6.4 billion”Local government · Nov. 2025 · grade A
- Incentives: Chapter 312 property tax abatement sought from Pecos County and Pecos County Memorial Hospital District (Longfellow Renewable Energy Reinvestment Zone); percentage and term not stated in the public notice; ex“a proposed form of property tax abatement between the Hospital District and Poolside, Inc, pursuant to Chapter 312 of the Texas Tax Code”Local government · Nov. 2025 · grade A
- tax abatement (Chapter 312, proposed): consideration Board to discuss and take possible action on an order for a proposed form of property tax abatement, Nov 18, 2025; outcome not found in any source checked“will discuss and take possible action regarding an order concerning a proposed form of property tax abatement between the Hospital District and Poolside, Inc”Local government · Nov. 2025 · grade A
- tax abatement (Chapter 312, proposed): minimum investment 6400000000 USD“The best estimate of capital investment of all such improvements subject to the requested tax abatement is $6.4 billion”Local government · Nov. 2025 · grade A
- tax abatement (Chapter 312, proposed): conditions and clawbacks (finding) The public notice states no abatement percentage, term, jobs floor or clawback terms; any executed agreement is not public in sources checked, so“Anticipated Improvements: Poolside, Inc anticipates a multiphased artificial intelligence datacenter campus with potential for up to 2 gigawatts of capacity”Local government · Nov. 2025 · grade A
- Tax abatement: Chapter 312 tax abatement considered by Pecos County Memorial Hospital District (posted Oct. 6, 2025; meeting Nov. 18, 2025); reinvestment zone: Longfellow Renewable Energy Reinvestment Zone; estimated improvem“Pecos County Reinvestment Zone: Longfellow Renewable Energy Reinvestment Zone”Local government · Nov. 2025 · grade B
- Tenants: CoreWeave, Inc., anchor tenant and operational partner, first phase (announced Oct. 15, 2025)“CoreWeave plans to serve as the anchor tenant and operational partner for the first phase of the project”Company · Oct. 2025 · grade B
- Tenant status: signed anchor lease (15-year, phase 1), announced Oct. 15, 2025“CoreWeave will serve as anchor tenant for the first 250 MW phase of the Horizon campus under a 15-year lease, with 500 MW reserved for future expansion”Company · Oct. 2025 · grade B
- anchor lease and operational partnership: scope First phase of Project Horizon, 250 MW gross power MW“CoreWeave plans to serve as the anchor tenant and operational partner for the first phase of the project, which comprises 250MW of gross power”Company · Oct. 2025 · grade B
- anchor lease and operational partnership: term 15 years“CoreWeave will serve as anchor tenant for the first 250 MW phase of the Horizon campus under a 15-year lease”Company · Oct. 2025 · grade B
- anchor lease and operational partnership: expansion option 500 MW reserved for future expansion (company texts: an additional 500 MW beyond phase 1) MW“includes an option to further expand capacity by an additional 500MW”Company · Oct. 2025 · grade B
- GPU supply agreement: scope Cluster of NVIDIA GB300 NVL72 systems, more than 40,000 GPUs, coming online beginning December 2025 (CoreWeave cloud, not the Horizon site) GPUs“CoreWeave will provide a frontier-scale cluster of NVIDIA GB300 NVL72 systems — more than 40,000 GPUs coming online beginning in December 2025”Company · Oct. 2025 · grade B
- land control: scope 568 acres of development-ready land on Longfellow Ranch secured; lease vs purchase and price not disclosed in any source checked acres“We've secured a 2 GW behind-the-meter AI campus on 568 acres of development-ready land”Company · Oct. 2025 · grade B
- Tenant lease: execution“Separately, CoreWeave plans to provide Poolside with its market-leading cloud solutions for Project Horizon, Poolside's 2GW AI campus in West Texas.”Company · Oct. 2025 · grade B
- Tenant lease: capacity 250 MW gross“CoreWeave plans to serve as the anchor tenant and operational partner for the first phase of the project, which comprises 250MW of gross power”Company · Oct. 2025 · grade B
- Tenant lease: capacity 500 MW gross“which comprises 250MW of gross power and includes an option to further expand capacity by an additional 500MW”Company · Oct. 2025 · grade B
- Tenants: none (CoreWeave anchor agreement terminated; no replacement tenant signed as of latest reporting)“the partnership with CoreWeave began to fall apart late last year... the company was no longer in discussion with Poolside”News report · July 2026 · grade C
- Tenant status: terminated (late March / early April 2026); replacement talks only, none signed“Poolside is in talks with cloud providers, including Google, in hopes of securing a new partner for its Texas data center project”News report · April 2026 · grade C
- Financing: No project-level debt or campus financing closed in any source checked; the ~$2B 2025-26 equity round failed to close (FT via DCD) USD“the FT states that the company was unsuccessful in its fundraising bid”News report · April 2026 · grade C
- Project status: Paused - the CoreWeave anchor-tenant agreement fell apart from late 2025 (Poolside unable to stand up the first chip cluster to CoreWeave's timeline, per FT via DCD); sponsor seeking a new partner (talks“the partnership with CoreWeave began to fall apart late last year as Poolside was unable to stand up the first cluster of chips to CoreWeave's timeline”News report · April 2026 · grade C
- Tenant status: terminated“the partnership with CoreWeave began to fall apart late last year as Poolside was unable to stand up the first cluster of chips to CoreWeave's timeline”News report · April 2026 · grade C
- Tenants: none current (former anchor tenant: CoreWeave, Inc.)“the partnership with CoreWeave began to fall apart late last year as Poolside was unable to stand up the first cluster of chips to CoreWeave's timeline”News report · April 2026 · grade C
- anchor lease and operational partnership: termination Agreement fell apart and was terminated in late March / early April 2026, before any construction; CoreWeave cited strategic and timing reasons“the partnership with CoreWeave began to fall apart late last year as Poolside was unable to stand up the first cluster of chips to CoreWeave's timeline”News report · April 2026 · grade C
- FT reports Poolside's ~$2B fundraising round was unsuccessful; five people familiar with the matter; company could not convince investors it could match frontier competitors (via DCD)“the FT states that the company was unsuccessful in its fundraising bid, and was unable to convince investors that it could train AI models to the same level of established competitors”News report · April 2026 · grade C
- DCD confirms the CoreWeave partnership fell apart; Poolside seeking replacement partners for up to 400 MW of commitments“Those conversations are said to be targeting getting commitments secured for the construction of up to 400MW of capacity”News report · April 2026 · grade C
- CoreWeave anchor lease fell apart from late 2025 over the chip-cluster timeline (FT via DCD, April 2, 2026); campus lost its only tenant, contracted load fell to 0; Poolside marketing a scaled-down ~400 MW revival to replac“the partnership with CoreWeave began to fall apart late last year as Poolside was unable to stand up the first cluster of chips to CoreWeave's timeline”News report · April 2026 · grade C
- CoreWeave anchor tenancy at Project Horizon terminated - the Oct 2025 agreement fell apart from late 2025 over Poolside's inability to stand up the first chip cluster to CoreWeave's timeline (FT via DCD); sponsor seeking“The new discussions come after Poolside's previous agreement with CoreWeave for the project fell apart.”News report · April 2026 · grade C
- tax abatement (Chapter 312, proposed): status Abatement agreement with Poolside Inc. in the Longfellow Renewable Energy Reinvestment Zone was on the Pecos County Commissioners Court agenda for Nov 10, 2025; execution not“Tax abatement agreement with Poolside Inc. within the Longfellow Renewable Energy Reinvestment Zone (on Nov. 10, 2025 county agenda)”News report · Nov. 2025 · grade C
- Tenant lease: term 15 years“CoreWeave will be the anchor tenant for the first phase of the project, which alone will offer 250MW of power capacity under a 15-year lease, expandable to 500MW.”News report · Oct. 2025 · grade C
- Tenant lease: delivery“Construction is expected to be completed in the first quarter of 2027.”News report · Oct. 2025 · grade C
- Financing: Series B equity, $500M, led by Bain Capital Ventures, closed Oct 2, 2024; total raised to $626M incl. $100M Series A and $26M seed; $3B valuation USD“it has closed on a bumper $500 million Series B raise... The round brings Poolside's total amount raised to date to $626 million”News report · Oct. 2024 · grade C
Permits and government (17)
- air NSR Standard Permit registration (Electric Generating Facilities, rule 6005): issued - Central Registry project record (expedited permitting)“Project#: 406111 Status: COMPLETE ... STANDARD PERMIT NEW REGISTRATION ... POOLSIDE DATA CENTER PECOS COUNTY II ... 183235 INITIAL STDPMT 03/09/2026 ISSUED 03/12/2036 COMPLETE 03/12/2026 ... EXPEDITED PERMITTING”State agency · Oct. 2026 · grade A
- air NSR Standard Permit registration (Electric Generating Facilities, rule 6005): application received“176519 INITIAL STDPMT 05/31/2024 ISSUED 06/06/2034 COMPLETE 06/06/2024 ... Customer Name: LONGFELLOW POWER LLC ... COMANCHE CREEK GENERATING STATION PECOS ... 2301 PUCKETT ROAD”State agency · Oct. 2026 · grade A
- air NSR Standard Permit registration (Electric Generating Facilities, rule 6005): issued“Project Administrative Name: STANDARD PERMIT NEW REGISTRATION Project Technical Name: COMANCHE CREEK GENERATING STATION ... ELECTRIC GENERATING FACILITIES 6005 Y Y”State agency · Oct. 2026 · grade A
- air NSR Standard Permit registration (Electric Generating Facilities, rule 6005): application received“181521 INITIAL STDPMT 09/15/2025 ISSUED 10/23/2035 COMPLETE 10/23/2025 ... ROCK HOUSE DRAW GENERATING STATION ... TURN LEFT ONTO PUCKETT RD AND GO 2.3 MI”State agency · Oct. 2026 · grade A
- air NSR Standard Permit registration (Electric Generating Facilities, rule 6005): issued“FINAL PACKAGE REWORK CYCLE 09/22/2025 10/23/2025 ... ELECTRIC GENERATING FACILITIES 6005 Y Y”State agency · Oct. 2026 · grade A
- construction stormwater general permit (TXR150000) NOI: NOI received and approved; coverage began“Date Coverage Began:06/05/2026 ... Site Name on Permit:POOLSIDE PROJECT HORIZON Authorization Type:CONSTRUCTION ... Area Disturbed (In Acres) : 712.55 ... Estimated Project End Date : 03/31/2028 Estimated Project Start Date : 06/23/2026”State agency · Oct. 2026 · grade A
- construction stormwater general permit (TXR150000) NOI: NOI received and approved; coverage began“Permit Number: TXR1516YM ... Date Coverage Began: 06/05/2026 ... Operator: CN606412666 - Gcon, Llc ... Latitude: 30.263 Longitude: -102.559”State agency · Oct. 2026 · grade A
- air NSR Standard Permit registration (temporary rock and concrete crushers, rule: issued (expedited)“182718L001 INITIAL STDPMT 01/15/2026 ISSUED COMPLETE 01/26/2026 ... LOCATED ON SOUTH SIDE OF PUCKETT RD APPROX 2.6 MILES EAST OF ITS INTERSECTION WITH HWY 285.”State agency · Oct. 2026 · grade A
- air NSR Standard Permit registration (Electric Generating Facilities, rule 6005): application received (pending, expedited)“185685 INITIAL STDPMT 10/09/2026 PENDING ... Legal Name: Sms Horizon Ec1, LLC ... THE SITE IS ON THE EAST SIDE OF US 285 AT THAT INTERSECTION”State agency · Oct. 2026 · grade A
- air quality authorization (turbine list, type S): issued (final)“Issue Date 2026-03-12 | TM2500 GEN 8 & TM2500 PLUS | 12 CTs | Project MW 332.28 | NOx 2.5 | SCR | simple cycle”State agency · March 2026 · grade A
- air quality authorization (turbine list, type S): application received“183235 | S | Received 2026-03-09 | Poolside LF Phase 2 DC Ops LLC | Fort Stockton | Pecos”State agency · March 2026 · grade A
- Pecos County Memorial Hospital District Board: Discuss and take possible action on an order for a proposed form of Chapter 312 property tax abatement with Poolside, Inc.“the Pecos County Memorial District Board of Directors will discuss and take possible action regarding an order concerning a proposed form of property tax abatement”Local government · Nov. 2025 · grade A
- DCD states it is unclear if Amazo“AI start-up Poolside is planning to develop a large-scale data center campus outside Fort Stockton, known as Project Horizon... It's unclear if Amazon's plans involve Poolside”News report · Oct. 2026 · grade C
- Gov. Abbott orders TCEQ to halt all data-center permit issuance statewide, expressly including fully islanded behind-the-meter projects, until ERCOT's audit completes (expected mid-Dec 2026); any further Poolside TCEQ fi“The pause applies to all data center projects regardless of whether they use ERCOT grid power, including fully islanded facilities relying on behind-the-meter generation”News report · Sept. 2026 · grade C
- Water use stated: Non-potable groundwater within existing permitted allocations; about the irrigation need of two acres of West Texas alfalfa per day (developer-side claim)“All campus water draws from non-potable groundwater within existing permitted allocations... Daily water consumption equates to roughly the irrigation needs of just two acres of West Texas alfalfa”News report · June 2026 · grade C
- Pecos County Commissioners Court: Tax abatement agreement with Poolside Inc., Longfellow Renewable Energy Reinvestment Zone“Tax abatement agreement with Poolside Inc. within the Longfellow Renewable Energy Reinvestment Zone (on Nov. 10, 2025 county agenda)”News report · Nov. 2025 · grade C
- air registration (related entity, same Puckett Road address): received (status per mirror log; not in TCEQ >=20 MW turbine list)“Shared Puckett Road address, permit 181521: FROM FORT STOCKTON, HEAD SOUTH ON N ALAMO ST/US HWY 285 S FOR 26.7MI. TURN LEFT ONTO PUCKETT RD”News report · Sept. 2025 · grade C
Legal (1)
- Opposition: No organized opposition, petition or lawsuit found in searches through Oct. 18, 2026; developer-side advocacy addressed water/activist concerns generically in mid-2026“West Texas Data Center Project Addresses Activist Concerns Head-On”News report · June 2026 · grade C
Site and other (15)
- County: Pecos County, Texas“TRACT A LOCATED IN BLOCK 101, BLOCK 120 G.C. & S.F. R.R. Co. SURVEY and MRS. SARAH HILL SURVEY 2, PECOS COUNTY, TEXAS”Local government · Nov. 2025 · grade A
- Address: Project Horizon tract: Tract A, Block 101 / Block 120 G.C. & S.F. R.R. Co. Survey and Mrs. Sarah Hill Survey 2, Pecos County (unincorporated, SE of Fort Stockton)“Property in Reinvestment Zone: TRACT A LOCATED IN BLOCK 101, BLOCK 120 G.C. & S.F. R.R. Co. SURVEY and MRS. SARAH HILL SURVEY 2, PECOS COUNTY, TEXAS”Local government · Nov. 2025 · grade A
- Filing record: CoreWeave's SEC filings never described the Project Horizon lease. CIK-constrained full-text searches of all CoreWeave filings return 0 hits for 'Longfellow', 'Fort Stockton', 'Pecos' and 'Project Horizon'“Partner of choice for leading AI pioneers and enterprises including: Inference.net, Mizuho Bank, NASA JPL, and Poolside”SEC filing · Nov. 2025 · grade A
- County code: 48371“PECOS COUNTY, TEXAS”Local government · Oct. 2026 · grade B
- Site acres: 559 acres“Project Horizon is being developed more than 25 miles outside of Fort Stockton, on a 559-acre footprint adjacent to the Longfellow Ranch”Company · Oct. 2026 · grade B
- Code names: Project Horizon“announcing Project Horizon: a 2 GW AI campus in West Texas, built from the ground up”Company · Oct. 2025 · grade B
- Developer: Poolside (Poolside, Inc.), building through its Poolside Infrastructure Company“The Poolside Infrastructure Company will lead that effort”Company · Oct. 2025 · grade B
- Acres: 568 acres“We've secured a 2 GW behind-the-meter AI campus on 568 acres of development-ready land”Company · Oct. 2025 · grade B
- Chips: NVIDIA GB300 NVL72 (planned campus silicon; 40,000+ GPU cluster was a CoreWeave cloud commitment, not on-site)“CoreWeave will provide a state-of-the-art cluster of NVIDIA GB300 NVL72 systems, including more than 40,000 GPUs”Company · Oct. 2025 · grade B
- Announced: Oct. 15, 2025“Today, we're announcing Project Horizon”Company · Oct. 2025 · grade B
- Aliases: Longfellow Ranch data center; Poolside LF Phase 1 / Phase 2 (Puckett Road site)“The LF in Poolside LF Phase 1/2 DC Ops is the ranch. The same landowner relationship covers both sites”News report · July 2026 · grade C
- Poolside Infrastructure Co. advocacy piece (Texas News Beep) addresses activist/water concerns; names Robert Bonar as new CEO of Poolside Infrastructure Company; describes closed-loop liquid cooling and non-potable groun“Robert Bonar, new CEO of Poolside Infrastructure Company”News report · June 2026 · grade C
- Current target date: none published (project paused April 2026; no revised COD)“Project Horizon | Poolside | Fort Stockton (Pecos County) | 2,000 | Paused”News report · April 2026 · grade C
- Construction stage: none verified at the Horizon site (no construction evidence in any primary source; trackers list the project as paused)“Paused or cancelled projects: Project Horizon | Poolside | Fort Stockton (Pecos County) | 2,000 | Paused”News report · April 2026 · grade C
- Original target date: 2027-Q1 (first phase construction completion, per October 2025 reporting)“Construction is expected to be completed in the first quarter of 2027”News report · Oct. 2025 · grade C