WELL · 42-461-39233 · DISTRICT 7
Mary 18B #6
Upton County · Spraberry (Trend Area) R 40 Exc field · Vertical
Mary 18b #6 (API 42-461-39233) is a plugged well in Upton County, plugged September 15, 2022, last operated by Pioneer Natural Res. USA Inc..
The RRC has issued one drilling permit (amended once), issued January 18, 2014, permitted to 11,800 ft.
It was permitted by Parsley Energy Operations, LLC and has since transferred to Pioneer Natural Res. USA Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including San Andres, Spraberry, Wolfcamp, Strawn.
Its lease has reported 105K barrels of oil and 668K mcf of gas since August 2013, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Parsley Energy Operations, LLC; the EWA schedule now lists a different operator.
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 8, 2026
- Permits on file
- 15,628
- Phone
- (972) 444-4001
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pioneer Natural Res. USA Inc. |
| Production reports | Pioneer Natural Res. USA, Inc.through Feb 2026 |
| Latest permit | Parsley Energy Operations, LLCJan 18, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,800
- total depth, ft
- 2
- permits on file
- Jan 18, 2014
- last permit issued
- Jun 20, 2014
- completed
- 105K
- cumulative oil, bbl
- 668K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2013 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 20, 2014
- Shut in
- —
- Plugged
- Sep 15, 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 |
|---|---|---|---|---|---|---|
| Mary 18B O-9-18589 | Spraberry (Trend Area) R 40 Exc | Pioneer Natural Res. USA, Inc. | 2 | 105K | 668K | Aug 2013 – Jul 2026 |
Gas, mcf lease total
Last 12 months 207 · prior 12 3,825(-95%)
Oil, barrels lease total
Last 12 months 0 · prior 12 436(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Parsley Energy Operations, LLCSep 2013 → Jan 2021
- 2Pioneer Natural Res. USA, Inc.Feb 2021 → Aug 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 776391-98 | Drill | Parsley Energy Operations, LLC | Aug 1, 2014 | Jan 18, 2014 | Apr 23, 2014 | 11,800 |
| 776391-99 | Drill | Parsley Energy Operations, LLC | Dec 30, 2013 | Jan 18, 2014 | Apr 23, 2014 | 11,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-18589 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,812 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San AndresSAN ANDRES - SALTWATER FLOW | 4,550 | -1,738 |
| Spraberry | 7,600 | -4,788 |
| Wolfcamp | 9,150 | -6,338 |
| Strawn | 10,450 | -7,638 |
| Pennsylvanian | 10,970 | -8,158 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Grayburg | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,734 | 11,716 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.75 | 386 | 17.5 | 420 S |
| 8.625 | 5,029 | 11 | 663 S |
| 5.5 | 11,825 | 7.875 | 1,421 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 | Feb 6, 2015 | Nov 3, 2014 | 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 42-461-39233 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-39233 → 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.
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/46139233, documented in the API reference.