TEXAS · WELLS · UPTON COUNTY · MARY 18B LEASE · API 42-461-42342 · DISTRICT 6E
Mary 18B #2H
Upton County · Spraberry (Trend Area) field · Producing · Horizontal
Mary 18b #2H (API 42-461-42342) is a horizontal well in Upton County operated by Pioneer Natural Res. USA Inc., completed May 18, 2023 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued December 27, 2022, permitted to 8,457 ft.
Completion filings report 10 formation tops, including Yates, Grayburg, San Andres, Clear Fork.
Its lease has reported 294K barrels of oil and 463K mcf of gas since March 2023, last reporting in July 2026.
Operator of record
- 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 Apr 2026 |
| Latest permit | Pioneer Natural Res. USA, Inc.Dec 27, 2022 |
- 8,457
- total depth, ft
- 1
- permits on file
- Dec 27, 2022
- last permit issued
- May 18, 2023
- completed
- 294K
- cumulative oil, bbl
- 463K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2023 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 18, 2023
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
31.592261, -102.009582
Permit surface location from the RRC GIS record, in Upton 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 |
|---|---|---|---|---|---|---|
| Mary 18B O-9-22059 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 294K | 463K | Mar 2023 – Jul 2026 |
Oil, barrels lease total
Last 12 months 80,120 · prior 12 112,538(-29%)
Gas, mcf lease total
Last 12 months 203,965 · prior 12 180,145(+13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pioneer Natural Res. USA, Inc.May 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 885660-99 | Drill | Pioneer Natural Res. USA, Inc. | Nov 10, 2022 | Dec 27, 2022 | Jan 19, 2023 | 8,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 18, 2023 | Mary 18B O-9-22059 | Spraberry (Trend Area) | Pioneer Natural Res. USA Inc. | Producing | 8,457 |
Formation tops
As filed on W-2/G-1. Subsea from 2,833 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,632 | 201 |
| Grayburg | 4,315 | -1,482 |
| San AndresSAN ANDRES - SALTWATER FLOW | 5,723 | -2,890 |
| Clear ForkCLEARFORK | 6,693 | -3,860 |
| Spraberry | 7,567 | -4,734 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
| Wolfcamp | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,887 | 19,166 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,484 | 17.5 | 1,975 S |
| 9.625 | 5,777 | 12.25 | 1,552 S |
| 5.5 | 19,186 | 6.75 | 933 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 | Nov 13, 2023 | Sep 28, 2023 | — |
| 00 | May 17, 2023 | May 11, 2023 | 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 42-461-42342 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-42342 → 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
Mary 18D42-461-42343
0.0 KM · Pioneer Natural Res. USA, Inc. · Section with this well →
| Yates | 2,629 | 204 |
| Grayburg | 4,305 | -1,472 |
| San Andres | 4,569 | -1,736 |
| Clear Fork | 6,695 | -3,862 |
| Spraberry | 7,567 | -4,734 |
| Strawn | — | |
| Wolfcamp | — | |
| Fusselman | — |
10 TOPS · FIRST 8
Mary 18-7A-C42-461-41236
0.8 KM · Parsley Energy Operations, LLC · Section with this well →
| San Andres | 4,579 | -1,773 |
| Clear Fork | 6,686 | -3,880 |
| Spraberry | 7,551 | -4,745 |
| Dean | 8,902 | -6,096 |
| Wolfcamp | 9,087 | -6,281 |
| Yates | — | |
| Strawn | — | |
| Grayburg | — |
11 TOPS · FIRST 8
Mary 18-7A-D42-461-41207
0.8 KM · Parsley Energy Operations, LLC · Section with this well →
| San Andres | 4,573 | -1,767 |
| Clear Fork | 6,686 | -3,880 |
| Spraberry | 7,548 | -4,742 |
| Dean | 8,898 | -6,092 |
| Wolfcamp | 9,082 | -6,276 |
| Yates | — | |
| Grayburg | — | |
| Fusselman | — |
10 TOPS · FIRST 8
Griffin 19-30-A42-461-41007
1.0 KM · Parsley Energy Operations, LLC · Section with this well →
| San Andres | 4,601 | -1,794 |
| Spraberry | 7,521 | -4,714 |
| Dean | 8,902 | -6,095 |
| Wolfcamp | 9,084 | -6,277 |
| Yates | — | |
| Strawn | — | |
| Ellenburger | — | |
| Devonian | — |
10 TOPS · FIRST 8
Griffin 19-30-A42-461-41006
1.0 KM · Parsley Energy Operations, LLC · Section with this well →
| San Andres | 4,601 | -1,794 |
| Clear Fork | 6,688 | -3,881 |
| Spraberry | 7,521 | -4,714 |
| Dean | 8,902 | -6,095 |
| Wolfcamp | 9,084 | -6,277 |
| Devonian | — | |
| Grayburg | — | |
| Strawn | — |
10 TOPS · FIRST 8
Ellie 20-29-D42-461-40973
1.1 KM · Parsley Energy Operations, LLC · Section with this well →
| San Andres | 4,604 | -1,804 |
| Clear Fork | 6,681 | -3,881 |
| Spraberry | 7,561 | -4,761 |
| Dean | 8,930 | -6,130 |
| Wolfcamp | 9,117 | -6,317 |
| Yates | — | |
| Strawn | — | |
| Grayburg | — |
10 TOPS · FIRST 8
Ellie 20-29-D42-461-40972
1.1 KM · Parsley Energy Operations, LLC · Section with this well →
| San Andres | 4,604 | -1,804 |
| Clear Fork | 6,683 | -3,883 |
| Spraberry | 7,563 | -4,763 |
| Wolfcamp | 9,120 | -6,320 |
| Yates | — | |
| Fusselman | — | |
| Ellenburger | — | |
| Devonian | — |
10 TOPS · FIRST 8
Ellie 20-29-D42-461-40971
1.1 KM · Parsley Energy Operations, LLC · Section with this well →
| San Andres | 4,598 | -1,798 |
| Clear Fork | 6,686 | -3,886 |
| Spraberry | 7,566 | -4,766 |
| Wolfcamp | 9,123 | -6,323 |
| Yates | — | |
| Grayburg | — | |
| Fusselman | — | |
| Ellenburger | — |
10 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/46142342, documented in the API reference.