WELL · 42-371-40069 · DISTRICT 8
State Ambush 45-44 D #4WA
Pecos County · Hoefs T-K (Wolfcamp) field · Producing · Horizontal
State Ambush 45-44 D #4WA (API 42-371-40069) is a horizontal well in Pecos County operated by Diamondback E&P LLC, completed May 10, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 16, 2019, permitted to 11,406 ft.
Completion filings report 20 formation tops, including Delaware, Canyon, Bone Spring, Atoka.
Its lease has reported 317K barrels of oil and 645K mcf of gas since April 2020, last reporting in July 2026.
Operator of record
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,237 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 LLCMay 16, 2019 |
- 11,406
- total depth, ft
- 2
- permits on file
- May 16, 2019
- last permit issued
- May 10, 2020
- completed
- 317K
- cumulative oil, bbl
- 645K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 10, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.071566, -103.113850
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| State Ambush 45-44 D O-10-54586 | Hoefs T-K (Wolfcamp) | Diamondback E&P LLC | 1 | 317K | 645K | Apr 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 18,394 · prior 12 24,192(-24%)
Gas, mcf lease total
Last 12 months 53,173 · prior 12 75,876(-30%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCMar 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 852970-98 | Drill | Diamondback E&P LLC | Nov 5, 2019 | May 16, 2019 | Mar 16, 2020 | 11,406 |
| 852970-99 | Drill | Diamondback E&P LLC | May 9, 2019 | May 16, 2019 | Mar 14, 2020 | 11,406 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-54586 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,834 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Delaware | 5,350 | -2,516 |
| Canyon | 6,006 | -3,172 |
| Bone Spring | 7,903 | -5,069 |
| Atoka | — | — |
| CapitanCAPITAN REEF - HIGH FLOWS | — | — |
| Grayburg | — | — |
| Mississippian | — | — |
| O'Brien | — | — |
| Pennsylvanian | — | — |
| Queen | — | — |
| Rustler | — | — |
| San AndresSAN ANDRES - USABLE QUALITY WATE | — | — |
| Seven Rivers | — | — |
| Soma | — | — |
| Strawn | — | — |
| Sullivan | — | — |
| Toborg | — | — |
| Wichita-AlbanyWICHITA ALBANY | — | — |
| Wolfcamp | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,743 | 21,221 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,445 | 13.5 | 1,350 S |
| 5.5 | 9,636 | 6.75 | 1,680 S |
| 7.625 | 9,718 | 9.875 | 1,935 S |
| 5 | 21,314 | 6.75 | 1,680 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 | Aug 5, 2021 | Jul 12, 2021 | — |
| 00 | Sep 17, 2020 | Aug 18, 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 42-371-40069 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-40069 → 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 Ambush 45-44 E42-371-40070
0.0 KM · Diamondback E&P LLC · Section with this well →
| Yates | — | |
| Glorieta | — | |
| Grayburg | — | |
| O'Brien | — | |
| Queen | — | |
| Rustler | — | |
| San Andres | — | |
| Seven Rivers | — |
12 TOPS · FIRST 8
State Ambush 45-44 G42-371-40254
0.2 KM · Diamondback E&P LLC · Section with this well →
| Yates | — | |
| Toborg | — | |
| Soma | — | |
| Seven Rivers | — | |
| San Andres | — | |
| Rustler | — | |
| Queen | — | |
| O'Brien | — |
10 TOPS · FIRST 8
State Ambush 45-44 F42-371-40253
0.2 KM · Diamondback E&P LLC · Section with this well →
| Cherry Canyon | 5,961 | -3,129 |
| Yates | — | |
| Toborg | — | |
| Soma | — | |
| Seven Rivers | — | |
| San Andres | — | |
| Rustler | — | |
| Queen | — |
11 TOPS · FIRST 8
Hole in the Rock 46-47 G42-371-40137
0.2 KM · Diamondback E&P LLC · Section with this well →
| Canyon | 5,979 | -3,145 |
| Bone Spring | 7,895 | -5,061 |
| Strawn | — | |
| Atoka | — | |
| Cabballos | — | |
| Glorieta | — | |
| Grayburg | — | |
| Mississippian | — |
20 TOPS · FIRST 8
Hole in the Rock 46-47 F42-371-40136
0.2 KM · Diamondback E&P LLC · Section with this well →
| Bone Spring | — | |
| O'Brien | — | |
| Montoya | — | |
| Grayburg | — | |
| Glorieta | — | |
| Delaware | — | |
| Yates | — | |
| Wolfcamp | — |
19 TOPS · FIRST 8
Hole in the Rock 46-47 E42-371-39989
0.3 KM · Diamondback E&P LLC · Section with this well →
| Tubb | — | |
| Queen | — | |
| O'Brien | — | |
| Grayburg | — | |
| Glorieta | — | |
| Yates | — | |
| Rustler | — | |
| Toborg | — |
10 TOPS · FIRST 8
Hole in the Rock 46-47 D42-371-40089
0.3 KM · Diamondback E&P LLC · Section with this well →
| Glorieta | — | |
| Soma | — | |
| Toborg | — | |
| Tubb | — | |
| Yates | — | |
| Seven Rivers | — | |
| Rustler | — | |
| Queen | — |
10 TOPS · FIRST 8
Hole in the Rock 46-47 J42-371-40264
0.4 KM · Diamondback E&P LLC · Section with this well →
| Lamar | 5,381 | -2,561 |
| Cherry Canyon | 6,012 | -3,192 |
| Seven Rivers | — | |
| Grayburg | — | |
| Capitan | — | |
| San Andres | — | |
| Rustler | — | |
| Queen | — |
12 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/37140069, documented in the API reference.