WELL · 42-329-31003 · DISTRICT 8
Mashburn 48 #1
Midland County · Spraberry (Trend Area) field · Producing · Vertical
Mashburn 48 #1 (API 42-329-31003) is a well in Midland County operated by Diamondback E&P LLC, completed June 30, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 26, 1981, permitted to 9,200 ft.
It was permitted by Way, Ralph L., Inc. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Spraberry, Dean.
Its lease has reported 94.1K barrels of oil and 168K mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Permitted by Way, Ralph L., Inc.; the EWA schedule now lists a different operator.
Midland, TX · P-5 X, filed May 4, 2026 · 5,237 permits on file · (432) 221-7400
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 | Way, Ralph L., Inc.Jun 26, 1981 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,200
- total depth, ft
- 1
- permits on file
- Jun 26, 1981
- last permit issued
- Jun 30, 2020
- completed
- 94.1K
- cumulative oil, bbl
- 168K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 30, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
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 |
|---|---|---|---|---|---|---|
| Mashburn 48 O-10-26904 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 94.1K | 168K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 6,278 · prior 12 8,963(-30%)
Gas, mcf lease total
Last 12 months 1,989 · prior 12 2,483(-20%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Way, Ralph L., Inc.Jan 1993 → Aug 1995
- 2Alleder Inc.Sep 1995 → Mar 2021
- 3Endeavor Energy Resources L.P.Apr 2021 → Dec 2024
- 4Diamondback E&P LLCJan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 123043-99 | Drill | Way, Ralph L., Inc. | Jun 26, 1981 | Jun 26, 1981 | Jun 27, 1981 | 9,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-26904 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,676 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,554 | 8,724 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 348 | 17.5 | 400 S |
| 8.625 | 4,650 | 11 | 750 S |
| 2.375 | 7,824 | — | — |
| 4.5 | 8,900 | 7.875 | 800 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 8, 2021 | Jun 16, 2021 | — |
| 00 | Jan 12, 1984 | Oct 23, 1981 | — |
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 42-329-31003 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-31003 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
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/32931003, documented in the API reference.