TEXAS · WELLS · UPTON COUNTY · MARY 18A-18 LEASE · API 42-461-39737 · DISTRICT 6E
Mary 18A-18 #2HA
Upton County · Spraberry (Trend Area) R 40 Exc field · Producing · Horizontal
Mary 18a-18 #2HA (API 42-461-39737) is a horizontal well in Upton County operated by Pioneer Natural Res. USA Inc., completed February 13, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 25, 2014, permitted to 9,593 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 9 formation tops, including San Andres, Spraberry, Wolfcamp, Devonian.
Its lease has reported 179K barrels of oil and 438K mcf of gas since February 2015, last reporting volume in August 2026.
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
- 15,633
- 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 Aug 2026 |
| Latest permit | Parsley Energy Operations, LLCSep 25, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,593
- total depth, ft
- 1
- permits on file
- Sep 25, 2014
- last permit issued
- Feb 13, 2015
- completed
- 179K
- cumulative oil, bbl
- 438K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · FEB 2015 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 13, 2015
- Shut in
- —
- 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 18A-18 O-9-18995 | Spraberry (Trend Area) R 40 Exc | Pioneer Natural Res. USA, Inc. | 1 | 179K | 438K | Feb 2015 – Aug 2026 |
Oil, barrels lease total
Last 12 months 1,357 · prior 12 2,205(-38%)
Gas, mcf lease total
Last 12 months 15,328 · prior 12 10,870(+41%)
Wells named Mary 18A-18
Pioneer Natural Res. USA Inc.'s other wells filed under this lease name in Upton County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Parsley Energy Operations, LLCFeb 2015 → Jan 2021
- 2Pioneer Natural Res. USA, Inc.Feb 2021 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 793263-99 | Drill | Parsley Energy Operations, LLC | Aug 1, 2014 | Sep 25, 2014 | Oct 20, 2014 | 9,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 13, 2015 | Mary 18A-18 O-9-18995 | Spraberry (Trend Area) R 40 Exc | Pioneer Natural Res. USA Inc. | Producing | 9,593 |
Formation tops
As filed on W-2/G-1. Subsea from 2,805 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San AndresSAN ANDRES - SALTWATER FLOW | 4,538 | -1,733 |
| Spraberry | 7,541 | -4,736 |
| Wolfcamp | 9,143 | -6,338 |
| Devonian | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Grayburg | — | — |
| Strawn | — | — |
| Yates | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,668 | 14,117 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 464 | 17.5 | 500 S |
| 9.625 | 8,769 | 12.25 | 1,183 S |
| 5.5 | 14,188 | 8.5 | 2,210 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 | Nov 13, 2023 | Sep 28, 2023 | — |
| 00 | Aug 17, 2015 | Jun 24, 2015 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Feb 12, 2018. Resistivity. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans San Andres, Spraberry, Wolfcamp | TIFF | 0 to 14,202 | Feb 12, 2018run Jan 12, 2015 | 0.84 |
"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 42-461-39737 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-39737 → 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/46139737, documented in the API reference.