WELL · 42-329-33649 · DISTRICT 8
Preston Martha Jane #1
Midland County · Spraberry (Trend Area) field · Vertical
Preston Martha Jane #1 (API 42-329-33649) is a plugged well in Midland County, plugged May 10, 2022, last operated by Diamondback E&P LLC.
The RRC has issued one drilling permit, issued February 3, 1997, permitted to 8,900 ft.
It was permitted by Candelero Oil & Gas Company and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 6 formation tops, including T/Anhy, T/Tates, T/Grbg, T/Sadr.
Its lease has reported 71K barrels of oil and 207K mcf of gas since April 1997, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Candelero Oil & Gas Company; the EWA schedule now lists a different operator.
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 | Candelero Oil & Gas CompanyFeb 3, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,900
- total depth, ft
- 1
- permits on file
- Feb 3, 1997
- last permit issued
- Feb 20, 1997
- completed
- 71K
- cumulative oil, bbl
- 207K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 1997 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 20, 1997
- Shut in
- —
- Plugged
- May 10, 2022
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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Preston, Martha Jane O-10-35356 | Spraberry (Trend Area) | Diamondback E&P LLC | 2 | 71K | 207K | Apr 1997 – Jul 2026 |
Oil, barrels lease total
Last 12 months 6,242 · prior 12 4,789(+30%)
Gas, mcf lease total
Last 12 months 17,176 · prior 12 3,780(+354%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Candelero Oil & Gas CompanyApr 1997 → Oct 1997
- 2Rainbow Petroleum Management,incNov 1997 → Jan 2008
- 3Endeavor Energy Resources L.P.Feb 2008 → Nov 2024
- 4Diamondback E&P LLCJan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 458094-99 | Drill | Candelero Oil & Gas Company | Jan 31, 1997 | Feb 3, 1997 | Feb 6, 1997 | 8,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-35356 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,757 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T/Anhy | 1,762 | 995 |
| T/Tates | 2,647 | 110 |
| T/Grbg | 4,127 | -1,370 |
| T/Sadr | 4,316 | -1,559 |
| T/Spbr | 7,580 | -4,823 |
| T/JO Mill | 8,356 | -5,599 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,605 | 7,605 | Perforated |
| 7,818 | 7,838 | Perforated |
| 8,445 | 8,455 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 305 | 11 | 150 S |
| 4.5 | 8,902 | 7.875 | 215 S |
| 4.5 | — | 7.875 | 710 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 14, 1997 | Jun 12, 1997 | Yes |
| 00 | Jul 3, 1997 | — | — |
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 42-329-33649 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-33649 → 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/32933649, documented in the API reference.