TEXAS · WELLS · MARTIN COUNTY · WOLCOTT -C- LEASE · API 42-317-35227 · DISTRICT 7B
Wolcott -C- #7
Martin County · Breedlove South (Spraberry) field · Shut In · Vertical
Wolcott -C- #7 (API 42-317-35227) is a well in Martin County operated by Diamondback E&P LLC, completed September 18, 2008 and listed as shut in on the RRC schedule, shut in May 1, 2020.
The RRC has issued one drilling permit (amended once), issued April 12, 2008, permitted to 10,386 ft.
It was permitted by Pioneer Natural Res. USA, Inc. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.
Its lease has reported 157K barrels of oil and 358K mcf of gas since January 1993, with no volume in the three years through April 2026. The lease carries 4 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,243
- Phone
- (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 Aug 2022 |
| Latest permit | Pioneer Natural Res. USA, Inc.Apr 12, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,386
- total depth, ft
- 2
- permits on file
- Apr 12, 2008
- last permit issued
- Sep 18, 2008
- completed
- 157K
- cumulative oil, bbl
- 358K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2022
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 18, 2008
- Shut in
- May 1, 2020
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Wolcott -C- O-10-28286 | Breedlove, South (Spraberry) | Diamondback E&P LLC | 4 | 157K | 358K | Jan 1993 – Aug 2022 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Parker & Parsley Development Co.Jan 1993 → Feb 1995
- 2Parker & Parsley Development L.PMar 1995 → Aug 1997
- 3Pioneer Natural Res. USA, Inc.Sep 1997 → Apr 2022
- 4Diamondback E&P LLCMay 2022 → Aug 2022
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 658582-98 | Drill | Pioneer Natural Res. USA, Inc. | Dec 8, 2008 | Apr 12, 2008 | Aug 1, 2008 | 10,400 |
| 658582-99 | Drill | Pioneer Natural Res. USA, Inc. | Apr 1, 2008 | Apr 12, 2008 | Aug 1, 2008 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 18, 2008 | Wolcott -C- O-10-28286 | Breedlove South (Spraberry) | Diamondback E&P LLC | Shut In · shut in May 1, 2020 | 10,386 |
Formation tops
As filed on W-2/G-1. Subsea from 2,873 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,079 | 8,112 | Perforated |
| 8,872 | 8,955 | Perforated |
| 9,388 | 9,397 | Perforated |
| 9,515 | 9,560 | Perforated |
| 9,660 | 9,727 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 436 | 11 | 300 S |
| 4.5 | 10,384 | 7.875 | 485 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 28, 2009 | Nov 17, 2008 | Yes |
| 00 | Jan 7, 2009 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Feb 13, 2009. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans Spraberry, Dean, Wolfcamp | TIFF | 4,310 to 10,338 | Feb 13, 2009run Aug 14, 2008 | 4.57 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-317-35227 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-35227 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it. The University Lands library has no per-well link: then paste it into its 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/31735227, documented in the API reference.