WELL · 42-151-33159 · DISTRICT 8
Mason 1938 Unit #1H
Fisher County · Garden City S. (Wolfcamp) field · Producing · Horizontal
Mason 1938 Unit #1H (API 42-151-33159) is a horizontal well in Fisher County operated by Walsh & Watts Inc., completed May 7, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended 3 times), issued December 31, 2019, permitted to 6,893 ft.
It was permitted by Peregrine Petroleum Prtnr, Ltd. and has since transferred to Walsh & Watts Inc. on the wellbore schedule.
Completion filings report 10 formation tops, including Coleman Junction, Noodle Creek - Disposal, Flippen - Disposal, Cisco.
Its lease has reported 183K barrels of oil and 462K mcf of gas since May 2021, last reporting in July 2026.
Operator of record
Permitted by Peregrine Petroleum Prtnr, Ltd.; the EWA schedule now lists a different operator.
Aledo, TX · P-5 Y, filed Sep 4, 2025 · 361 permits on file · (855) 229-2122
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Walsh & Watts Inc. |
| Production reports | Walsh & Watts, Inc.through Apr 2026 |
| Latest permit | Peregrine Petroleum Prtnr, Ltd.Dec 31, 2019 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,893
- total depth, ft
- 4
- permits on file
- Dec 31, 2019
- last permit issued
- May 7, 2021
- completed
- 183K
- cumulative oil, bbl
- 462K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2021 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 7, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
32.706435, -100.624134
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Fisher 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 |
|---|---|---|---|---|---|---|
| Mason 1938 Unit O-10-55786 | Garden City, S. (Wolfcamp) | Walsh & Watts, Inc. | 1 | 183K | 462K | May 2021 – Jul 2026 |
Oil, barrels lease total
Last 12 months 14,961 · prior 12 16,643(-10%)
Gas, mcf lease total
Last 12 months 69,053 · prior 12 55,154(+25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Peregrine Petroleum Prtnr, Ltd.May 2021 → Feb 2024
- 2Walsh & Watts, Inc.Mar 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 860368-96 | Drill | Peregrine Petroleum Prtnr, Ltd. | Aug 5, 2021 | Dec 31, 2019 | Mar 19, 2020 | 6,893 |
| 860368-97 | Drill | Peregrine Petroleum Prtnr, Ltd. | Mar 19, 2020 | Dec 31, 2019 | Mar 19, 2020 | 6,660 |
| 860368-98 | Drill | Peregrine Petroleum Prtnr, Ltd. | Mar 13, 2020 | Dec 31, 2019 | — | 6,660 |
| 860368-99 | Drill | Peregrine Petroleum Prtnr, Ltd. | Dec 20, 2019 | Dec 31, 2019 | Mar 19, 2020 | 6,660 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-55786 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,167 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Coleman JunctionCOLEMAN JUNCTION - CORROSIVE; PO | 3,799 | -1,632 |
| Noodle Creek - Disposal | 4,130 | -1,963 |
| Flippen - Disposal | 4,668 | -2,501 |
| CiscoCISCO (REEF, LIME, SAND) - DISPO | 5,564 | -3,397 |
| Breckenridge - Disposal | — | — |
| Crystal Falls - Disposal | — | — |
| Dothan Sand - Disposal | — | — |
| Hope - Disposal | — | — |
| Saddle CreekSADDLE CREEK - DISPOSAL | — | — |
| San AndresSAN ANDRES - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,198 | 14,876 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 12.25 | 1,148 | 9.625 | 580 S |
| 9.625 | 1,148 | 12.25 | 580 S |
| 8.75 | 7,180 | 7 | 940 S |
| 7 | 7,180 | 8.75 | 940 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 | Sep 13, 2021 | Jul 12, 2021 | — |
| 00 | Jun 14, 2021 | May 16, 2021 | 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 42-151-33159 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-151-33159 → 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.
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 neighbours, subsea-aligned so they line up regardless of surface terrain.
Mason 8542-151-33139
0.6 KM · Peregrine Petroleum Prtnr, Ltd. · Section with this well →
| Coleman Junction | 3,841 | -1,638 |
| Noodle Creek - Disposal | 4,167 | -1,964 |
| Saddle Creek | 4,409 | -2,206 |
| Flippen - Disposal | 4,470 | -2,267 |
| Breckenridge - Disposal | 4,667 | -2,464 |
| San Andres | — | |
| Hope - Disposal | — | |
| Cisco | — |
10 TOPS · FIRST 8
Tennie Unit42-151-33196
1.0 KM · Peregrine Petroleum Prtnr, Ltd. · Section with this well →
| Coleman Junction | 3,861 | -1,659 |
| Noodle Creek - Disposal | 4,199 | -1,997 |
| Flippen - Disposal | 4,732 | -2,530 |
| Cisco | 5,761 | -3,559 |
| Canyon | 6,394 | -4,192 |
| Strawn | 6,761 | -4,559 |
| Swastika - Disposal | — | |
| San Andres | — |
17 TOPS · FIRST 8
W.B. Unit42-151-33160
1.1 KM · Peregrine Petroleum Prtnr, Ltd. · Section with this well →
| San Andres | 591 | 1,572 |
| Coleman Junction | 4,147 | -1,984 |
| Noodle Creek - Disposal | 4,482 | -2,319 |
| Flippen - Disposal | 4,601 | -2,438 |
| Cisco | 6,343 | -4,180 |
| Saddle Creek | — | |
| Breckenridge - Disposal | — | |
| Crystal Falls - Disposal | — |
10 TOPS · FIRST 8
Hannah-Stevie Unit42-151-33194
1.8 KM · Peregrine Petroleum Prtnr, Ltd. · Section with this well →
| Coleman Junction | 3,836 | -1,656 |
| Noodle Creek - Disposal | 4,207 | -2,027 |
| Cisco | 5,258 | -3,078 |
| Dothan Sand - Disposal | — | |
| Breckenridge - Disposal | — | |
| Crystal Falls - Disposal | — | |
| Flippen - Disposal | — | |
| Hope - Disposal | — |
10 TOPS · FIRST 8
Willingham Ranch W269 A42-151-33104
2.1 KM · Denton Exploration, Inc. · Section with this well →
| Coleman Junction | 3,720 | -1,624 |
| Noodle Creek - Disposal | 4,045 | -1,949 |
| Dothan Sand - Disposal | 4,088 | -1,992 |
| San Andres | — | |
| Breckenridge - Disposal | — | |
| Cisco | — | |
| Crystal Falls - Disposal | — | |
| Flippen - Disposal | — |
10 TOPS · FIRST 8
Lindsey Loo Unit42-151-33193
2.4 KM · Peregrine Petroleum Prtnr, Ltd. · Section with this well →
| Coleman Junction | 3,909 | -1,662 |
| Noodle Creek - Disposal | 4,266 | -2,019 |
| Saddle Creek | — | |
| San Andres | — | |
| Flippen - Disposal | — | |
| Dothan Sand - Disposal | — | |
| Crystal Falls - Disposal | — | |
| Cisco | — |
10 TOPS · FIRST 8
Kings Canyon 30-4742-151-33384
2.5 KM · Browning Oil Company, Inc. · Section with this well →
| Coleman Junction | 3,610 | -1,486 |
| Noodle Creek - Disposal | 4,121 | -1,997 |
| Saddle Creek | 4,427 | -2,303 |
| Crystal Falls - Disposal | 5,892 | -3,768 |
| Dothan Sand - Disposal | — | |
| San Andres | — | |
| Breckenridge - Disposal | — | |
| Cisco | — |
10 TOPS · FIRST 8
Patagonia 6842-151-33118
2.7 KM · Browning Oil Company, Inc. · Section with this well →
| Coleman Junction | 3,600 | -1,442 |
| Noodle Creek - Disposal | 4,165 | -2,007 |
| Saddle Creek | 4,480 | -2,322 |
| Cisco | 4,675 | -2,517 |
| Cline | 6,320 | -4,162 |
| San Andres | — | |
| Hope - Disposal | — | |
| Breckenridge - Disposal | — |
11 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/15133159, documented in the API reference.