TEXAS · WELLS · STARR COUNTY · SOUTHWEST TEXAS CORP "D" LEASE · API 42-427-33824 · DISTRICT 04
Southwest Texas Corp D #4
Starr County · T Patch (Reklaw Oso) field · Producing · Vertical
Southwest Texas Corp D #4 (API 42-427-33824) is a well in Starr County operated by Varas Energy Operating Company, completed April 22, 2005 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 22, 2005, permitted to 9,700 ft.
It was permitted by Eog Resources, Inc. and has since transferred to Varas Energy Operating Company on the wellbore schedule.
Completion filings report 3 formation tops, including Crockett, Queen City, Reklaw.
Its lease has reported 46.8K barrels of oil and 2.77M mcf of gas since April 2005, last reporting volume in April 2026.
Operator of record
Varas Energy Operating Company
Permitted by EOG Resources, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Dec 9, 2025
- Phone
- (713) 858-3002
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Varas Energy Operating Company |
| Production reports | Varas Energy Operating Company,through Apr 2026 |
| Latest permit | EOG Resources, Inc.Mar 22, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,700
- total depth, ft
- 1
- permits on file
- Mar 22, 2005
- last permit issued
- Apr 22, 2005
- completed
- 46.8K
- cumulative oil, bbl
- 2.77M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2005 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 22, 2005
- 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.
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 |
|---|---|---|---|---|---|---|
| Southwest Texas Corp "D" G-4-209457 | T Patch (Reklaw Oso) | Varas Energy Operating Company, | 1 | 46.8K | 2.77M | Apr 2005 – Apr 2026 |
Gas, mcf lease total
Last 12 months 11,031 · prior 12 14,806(-25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Apr 2005 → Dec 2012
- 2Bluestone Natural Res. II, LLCJan 2013 → Dec 2019
- 3Blackbeard Operating, LLCJan 2020 → Nov 2020
- 4Hugoton Operating Company, Inc.Dec 2020 → Dec 2024
- 5Varas Energy Operating Company,Jan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 559346-99 | Drill | EOG Resources, Inc. | Mar 22, 2005 | Mar 22, 2005 | Mar 29, 2005 | 10,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 22, 2005 | Southwest Texas Corp D G-4-209457 | T Patch (Reklaw Oso) | Varas Energy Operating Company | Producing | 9,700 |
Formation tops
As filed on W-2/G-1. Subsea from 404 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Crockett | 4,802 | -4,398 |
| Queen CityTOP QUEEN CITY | 5,947 | -5,543 |
| Queen CityQUEEN CITY 14 | 7,180 | -6,776 |
| Reklaw | 8,360 | -7,956 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,639 | 8,858 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,695 | 12.25 | 650 S |
| 7 | 7,670 | 8.75 | 393 S |
| 4.5 | 9,690 | 6.25 | 226 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 | May 7, 2007 | Feb 27, 2007 | — |
| 00 | Jun 1, 2006 | Nov 4, 2005 | — |
| 00 | Sep 15, 2005 | May 19, 2005 | Yes |
| 00 | Jul 19, 2005 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Aug 27, 2008. 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 Crockett, Queen City, Reklaw | TIFF | 1,690 to 9,693 | Aug 27, 2008run Apr 13, 2005 | 0.90 |
"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 42-427-33824 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-427-33824 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/42733824, documented in the API reference.