WELL · 42-371-40111 · DISTRICT 8
McCombs State 1-12 #5WA
Pecos County · Hoefs T-K (Wolfcamp) field · Producing · Horizontal
Mccombs State 1-12 #5WA (API 42-371-40111) is a horizontal well in Pecos County operated by Diamondback E&P LLC, completed February 10, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued July 2, 2019, permitted to 12,500 ft.
Completion filings report 10 formation tops, including Glorieta, Grayburg, O'Brien, Queen.
Its lease has reported 766K barrels of oil and 4.6M mcf of gas since August 2014, last reporting in July 2026. The lease carries 4 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 LLCJul 2, 2019 |
- 12,500
- total depth, ft
- 2
- permits on file
- Jul 2, 2019
- last permit issued
- Feb 10, 2020
- completed
- 766K
- cumulative oil, bbl
- 4.6M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 10, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.070225, -103.275915
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| McCombs State 1-12 O-10-46234 | Hoefs T-K (Wolfcamp) | Diamondback E&P LLC | 4 | 766K | 4.6M | Aug 2014 – Jul 2026 |
Gas, mcf lease total
Last 12 months 376,348 · prior 12 273,212(+38%)
Oil, barrels lease total
Last 12 months 24,787 · prior 12 35,051(-29%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Brigham Resources Operating, LLCAug 2014 → Feb 2017
- 2Diamondback E&P LLCMar 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 854746-98 | Drill | Diamondback E&P LLC | Nov 15, 2019 | Jul 2, 2019 | Jul 6, 2019 | 12,500 |
| 854746-99 | Drill | Diamondback E&P LLC | Jul 1, 2019 | Jul 2, 2019 | Jul 6, 2019 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-46234 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,843 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,722 | 20,483 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,716 | 17.5 | 1,513 S |
| 10.75 | 6,980 | 12.25 | 205 S |
| 5.5 | 9,562 | 6.75 | 1,177 S |
| 7.625 | 9,842 | 9.875 | 219 S |
| 4.5 | 20,707 | 6.75 | 1,177 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 | Jul 13, 2020 | May 12, 2020 | 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 42-371-40111 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-40111 → 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.
McCombs State 1-1242-371-40040
0.2 KM · Diamondback E&P LLC · Section with this well →
| Glorieta | — | |
| Grayburg | — | |
| O'Brien | — | |
| Queen | — | |
| Rustler | — | |
| Seven Rivers | — | |
| Soma | — | |
| Toborg | — |
10 TOPS · FIRST 8
River Rattler 8-942-371-39626
3.0 KM · Crimson Exploration Oper., Inc. · Section with this well →
| Toborg | 500 | -473 |
| Soma | 700 | -673 |
| Rustler | 1,366 | -1,339 |
| Yates | 1,450 | -1,423 |
| Seven Rivers | 1,800 | -1,773 |
| Grayburg | 2,200 | -2,173 |
| O'Brien | 2,500 | -2,473 |
| Glorieta | 2,900 | -2,873 |
18 TOPS · FIRST 8
Bailey42-389-34598
3.2 KM · Samson Exploration, LLC · Section with this well →
| Delaware | 5,305 | -2,470 |
| Bell Canyon | 5,335 | -2,500 |
| Cherry Canyon | 6,018 | -3,183 |
| Bone Spring | 8,012 | -5,177 |
| Wolfcamp | 10,190 | -7,355 |
| Permian (undifferentiated) | — | |
| Pennsylvanian | — | |
| Delaware | — |
10 TOPS · FIRST 8
Elizabeth SWD42-371-39631
3.6 KM · Halcon Operating Co., Inc. · Section with this well →
| Grayburg | — | |
| Glorieta | — | |
| O'Brien | — | |
| Queen | — | |
| Rustler | — | |
| Seven Rivers | — | |
| Soma | — | |
| Toborg | — |
10 TOPS · FIRST 8
Lindsay42-371-39771
3.9 KM · Diamondback E&P LLC · Section with this well →
| Rustler | 1,211 | 1,596 |
| Grayburg | — | |
| O'Brien | — | |
| Queen | — | |
| San Andres | — | |
| Seven Rivers | — | |
| Soma | — | |
| Toborg | — |
10 TOPS · FIRST 8
Belle Alexandra A42-371-39625
4.2 KM · Halcon Operating Co., Inc. · Section with this well →
| Grayburg | — | |
| Glorieta | — | |
| O'Brien | — | |
| Queen | — | |
| Rustler | — | |
| Seven Rivers | — | |
| Soma | — | |
| Toborg | — |
10 TOPS · FIRST 8
Belle Alexandra42-371-39514
4.2 KM · Halcon Operating Co., Inc. · Section with this well →
| Glorieta | — | |
| Yates | — | |
| Tubb | — | |
| Toborg | — | |
| Soma | — | |
| Seven Rivers | — | |
| Rustler | — | |
| Queen | — |
10 TOPS · FIRST 8
Bailey42-389-35800
4.2 KM · Halcon Operating Co., Inc. · Section with this well →
| Delaware | 5,248 | -2,376 |
| Cherry Canyon | 8,232 | -5,360 |
| Wolfcamp | 10,193 | -7,321 |
| Castile | — | |
| Bone Spring | — | |
| Delaware | — | |
| Devonian | — | |
| Ellenburger | — |
14 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/37140111, documented in the API reference.