WELL · 42-505-36562 · DISTRICT 4
Thomasma Ray J. #20
Zapata County · Davis S (2ND Hinnant) field · SWR-10-Well · Vertical
Thomasma Ray J. #20 (API 42-505-36562) is a well in Zapata County operated by Hilcorp Energy Company, completed May 14, 2021 and listed as swr-10-well on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 2011 and 2021, permitted to 12,600 ft.
Completion filings report 7 formation tops, including Jackson, Yegua, Queen City, Miocene (undifferentiated).
No lease production has been reported under this well’s leases.
Operator of record
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,454 permits on file · (713) 209-2411
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Hilcorp Energy CompanyMay 5, 2021 |
- 12,600
- total depth, ft
- 3
- permits on file
- May 5, 2021
- last permit issued
- May 14, 2021
- completed
- 0
- cumulative oil, bbl
- 7.27M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 14, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
27.245408, -99.009528
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Zapata County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Thomasma, Ray J. G-4-266397 | Aviators S. (9450) | Hilcorp Energy Company | 1 | 0 | 5.9M | Nov 2011 – Jul 2026 |
| Thomasma, Ray J. G-4-291452 | Davis,s. (8000) | Hilcorp Energy Company | 1 | 0 | 1.37M | May 2021 – Jul 2026 |
| Thomasma, Ray J. G-4-291453 | Davis, S (2ND Hinnant) | Hilcorp Energy Company | 1 | 0 | 0 | May 2021 – Jul 2026 |
Gas, mcf lease total
Last 12 months 4,561 · prior 12 2,577(+77%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Nov 2011 → Jul 2014
- 2Linn Operating, Inc.Aug 2014 → Apr 2017
- 3Linn Operating, LLCMay 2017 → Jul 2017
- 4Hilcorp Energy CompanyAug 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 869490-99 | Recompletion | Hilcorp Energy Company | Apr 28, 2021 | May 5, 2021 | May 11, 2021 | 9,750 |
| 722489-98 | Drill | Devon Energy Production Co, L.P. | Aug 25, 2011 | Aug 19, 2011 | Sep 15, 2011 | 12,600 |
| 722489-99 | Drill | Devon Energy Production Co, L.P. | Aug 16, 2011 | Aug 19, 2011 | — | 12,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-266397 | — | — | — | — |
| — | — G-4-291452 | — | — | — | — |
| — | — G-4-291453 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 684 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Jackson | 140 | 544 |
| Yegua | 700 | -16 |
| Queen City | 900 | -216 |
| Miocene (undifferentiated)MIOCENE-LAGARTO-OAKVILLE | 2,000 | -1,316 |
| Wilcox | 2,600 | -1,916 |
| Cook Mountain | 2,900 | -2,216 |
| Queen City | 4,485 | -3,801 |
| Reklaw | 5,820 | -5,136 |
| WilcoxUPPER WILCOX | 7,820 | -7,136 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,028 | 8,386 | Perforated |
| 8,680 | 8,694 | Perforated |
| 9,372 | 9,549 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,000 | 14.75 | 680 S |
| 7.625 | 7,785 | 9.875 | 375 S |
| 4.5 | 9,750 | 6.75 | 310 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 | Oct 25, 2021 | Oct 5, 2021 | — |
| 00 | Oct 22, 2021 | Sep 23, 2021 | — |
| 00 | Mar 5, 2013 | Mar 28, 2012 | 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 42-505-36562 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-36562 → 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.
Hinnant 307 'C'42-505-35594
1.2 KM · Killam Oil Co., Ltd. · Section with this well →
| Mirando | 1,520 | -763 |
| Queen City | 4,610 | -3,853 |
| H-1 | 8,150 | -7,393 |
Thomasma, Ray J. "D"42-505-36130
2.0 KM · Hilcorp Energy Company · Section with this well →
| Jackson | 140 | 531 |
| Yegua | 700 | -29 |
| Queen City | 900 | -229 |
| Miocene (undifferentiated) | 2,000 | -1,329 |
| Wilcox | 2,600 | -1,929 |
| Cook Mountain | 2,900 | -2,229 |
Thomasma, Ray J.42-505-36639
2.2 KM · Hilcorp Energy Company · Section with this well →
| Jackson | 1,667 | -968 |
| Yegua | 2,167 | -1,468 |
| Queen City | 4,884 | -4,185 |
| Wilcox | 7,789 | -7,090 |
| Cook Mountain | — | |
| Miocene (undifferentiated) | — |
Hinnant Fulbright 'W' Gas Unit42-505-36630
2.2 KM · Killam Oil Co., Ltd. · Section with this well →
| Jackson | 1,151 | -493 |
| Yegua | 2,723 | -2,065 |
| Yegua | 2,723 | -2,065 |
| Cook Mountain | 3,775 | -3,117 |
| Queen City | 4,576 | -3,918 |
| Queen City | 4,576 | -3,918 |
| Wilcox | 7,966 | -7,308 |
| Wilcox | 7,966 | -7,308 |
9 TOPS · FIRST 8
Thomasma, Ray J.42-505-34806
2.6 KM · Hilcorp Energy Company · Section with this well →
| Queen City | 4,432 | -3,722 |
| Queen City | 5,825 | -5,115 |
| Wilcox | 11,320 | -10,610 |
| Perdido | 11,820 | -11,110 |
| Lobo Unconformity | 12,560 | -11,850 |
Thomasma, Ray J. 'C'42-505-35115
2.7 KM · Hilcorp Energy Company · Section with this well →
| Bruni-Lopez | 8,285 | -7,578 |
| W-18 | 8,512 | -7,805 |
| Blue MKR | 9,476 | -8,769 |
| Corr 1 | 9,943 | -9,236 |
| Charco | 11,620 | -10,913 |
| Base Charco | 11,798 | -11,091 |
Hinnant Fulbright 'W' Gas Unit42-505-36623
3.0 KM · Killam Oil Co., Ltd. · Section with this well →
| Jackson | 1,096 | -468 |
| Yegua | 2,673 | -2,045 |
| Cook Mountain | 3,752 | -3,124 |
| Queen City | 4,567 | -3,939 |
| Wilcox | 8,283 | -7,655 |
| Miocene (undifferentiated) | — |
Thomasma, Ray J.42-479-40725
4.3 KM · Hilcorp Energy Company · Section with this well →
| Queen City | 4,500 | -3,750 |
| Wilcox | 7,830 | -7,080 |
| Wilcox | 8,070 | -7,320 |
| Wilcox | 11,300 | -10,550 |
| Olmos | — | |
| Jackson | — | |
| Escondido | — | |
| Edwards | — |
12 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/50536562, documented in the API reference.