WELL · 42-371-39837 · DISTRICT 8
State Cliffhanger 26-27 Unit #1WA
Pecos County · Hoefs T-K (Wolfcamp) field · Producing · Horizontal
State Cliffhanger 26-27 Unit #1WA (API 42-371-39837) is a horizontal well in Pecos County operated by Diamondback E&P LLC, completed June 17, 2022 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued September 21, 2018, permitted to 11,465 ft.
Completion filings report 10 formation tops, including Glorieta, Grayburg, O'Brien, Queen.
Its lease has reported 2.2M barrels of oil and 3.67M mcf of gas since March 2019, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Diamondback E&P LLCSep 21, 2018 |
- 11,465
- total depth, ft
- 2
- permits on file
- Sep 21, 2018
- last permit issued
- Jun 17, 2022
- completed
- 2.2M
- cumulative oil, bbl
- 3.67M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 17, 2022
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.121607, -103.083903
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Pecos County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| State Cliffhanger 26-27 Unit O-10-52122 | Hoefs T-K (Wolfcamp) | Diamondback E&P LLC | 6 | 2.2M | 3.67M | Mar 2019 – Jul 2026 |
Oil, barrels lease total
Last 12 months 153,904 · prior 12 186,380(-17%)
Gas, mcf lease total
Last 12 months 316,624 · prior 12 398,009(-20%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCJun 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 844761-98 | Drill | Diamondback E&P LLC | Oct 3, 2018 | Sep 21, 2018 | Oct 7, 2018 | 11,465 |
| 844761-99 | Drill | Diamondback E&P LLC | Sep 17, 2018 | Sep 21, 2018 | Oct 7, 2018 | 11,465 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-52122 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,734 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,687 | 20,940 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,350 | 16 | 1,650 S |
| 7.625 | 9,848 | 9.875 | 1,465 S |
| 5.5 | 20,938 | 6.75 | 1,322 S |
| 4.5 | 21,113 | 6.75 | 1,322 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Oct 18, 2022 | Aug 17, 2022 | — |
| 00 | Nov 5, 2019 | Aug 16, 2019 | Yes |
| 00 | Sep 19, 2019 | Jun 21, 2019 | Yes |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-371-39837 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-39837 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
State Chapman Unit 26-2742-371-39834
0.0 KM · Diamondback E&P LLC · Section with this well →
| O'Brien | — | |
| Yates | — | |
| Tubb | — | |
| Toborg | — | |
| Soma | — | |
| Seven Rivers | — | |
| Rustler | — | |
| Queen | — |
10 TOPS · FIRST 8
State Cliffhanger 26-27 Unit42-371-40237
0.2 KM · Diamondback E&P LLC · Section with this well →
| Bone Spring | 7,943 | -5,208 |
| Capitan | — | |
| Yates | — | |
| Wolfcamp | — | |
| Toborg | — | |
| Soma | — | |
| Seven Rivers | — | |
| San Andres | — |
12 TOPS · FIRST 8
State Cliffhanger 26-27 Unit42-371-40042
0.5 KM · Diamondback E&P LLC · Section with this well →
| Glorieta | — | |
| Grayburg | — | |
| O'Brien | — | |
| Queen | — | |
| Rustler | — | |
| Seven Rivers | — | |
| Soma | — | |
| Toborg | — |
10 TOPS · FIRST 8
State Cliffhanger 26-27 Unit42-371-40043
0.6 KM · Diamondback E&P LLC · Section with this well →
| Soma | — | |
| Toborg | — | |
| Yates | — | |
| Rustler | — | |
| Seven Rivers | — |
State Chapman Unit 26-2742-371-39592
0.6 KM · Diamondback E&P LLC · Section with this well →
| Queen | — | |
| O'Brien | — | |
| Grayburg | — | |
| Yates | — | |
| Tubb | — | |
| Glorieta | — | |
| Toborg | — | |
| Soma | — |
10 TOPS · FIRST 8
State Chapman Unit 26-2742-371-39593
0.6 KM · Diamondback E&P LLC · Section with this well →
| Soma | — | |
| O'Brien | — | |
| Grayburg | — | |
| Glorieta | — | |
| Yates | — | |
| Tubb | — | |
| Toborg | — | |
| Seven Rivers | — |
10 TOPS · FIRST 8
State Cliffhanger 26-27 Unit42-371-40173
0.7 KM · Diamondback E&P LLC · Section with this well →
| Grayburg | — | |
| O'Brien | — | |
| Queen | — | |
| Rustler | — | |
| San Andres | — | |
| Seven Rivers | — | |
| Soma | — | |
| Toborg | — |
12 TOPS · FIRST 8
State Cliffhanger 26-27 Unit42-371-40172
0.7 KM · Diamondback E&P LLC · Section with this well →
| Grayburg | — | |
| Queen | — | |
| Rustler | — | |
| Seven Rivers | — | |
| Soma | — | |
| Toborg | — | |
| Tubb | — | |
| Yates | — |
10 TOPS · FIRST 8
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/37139837, documented in the API reference.