TEXAS · WELLS · MCMULLEN COUNTY · ZR "A' LEASE · API 42-311-33468 · DISTRICT 01
ZR A #4
McMullen County · A.W.P. (Olmos) field · Producing · Vertical
ZR A #4 (API 42-311-33468) is a well in Mcmullen County operated by Varas Energy Operating Company, completed December 9, 1997 and listed as producing on the RRC schedule, shut in October 1, 2023.
The RRC has issued one drilling permit, issued September 18, 1997, permitted to 11,490 ft.
It was permitted by Swift Energy Company and has since transferred to Varas Energy Operating Company on the wellbore schedule.
Completion filings report 7 formation tops, including Sparta, Queen City, Carrizo, Wilcox.
Its lease has reported 335 barrels of oil and 103K mcf of gas since December 1997, last reporting volume in April 2026.
Operator of record
Varas Energy Operating Company
Permitted by Swift Energy Company; 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 | Swift Energy CompanySep 18, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,490
- total depth, ft
- 1
- permits on file
- Sep 18, 1997
- last permit issued
- Dec 9, 1997
- completed
- 335
- cumulative oil, bbl
- 103K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 1997 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 9, 1997
- Shut in
- Oct 1, 2023
- 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 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 |
|---|---|---|---|---|---|---|
| ZR "A' G-1-166037 | A.W.P. (Olmos) | Varas Energy Operating Company, | 1 | 335 | 103K | Dec 1997 – Apr 2026 |
Gas, mcf lease total
Last 12 months 1,153 · prior 12 436(+164%)
Wells named ZR A
Varas Energy Operating Company's other wells filed under this lease name in McMullen 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.
- 1Swift Energy CompanyDec 1997 → Dec 2005
- 2Swift Energy Operating, LLCJan 2006 → Dec 2015
- 3El Dorado Gas & Oil, Inc.Aug 2018 → Dec 2024
- 4Varas Energy Operating Company,Feb 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 467728-99 | Drill | Swift Energy Company | Sep 18, 1997 | Sep 18, 1997 | Nov 6, 1997 | 11,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 9, 1997 | ZR A G-1-166037 | A.W.P. (Olmos) | Varas Energy Operating Company | Producing · shut in Oct 1, 2023 | 11,490 |
Formation tops
As filed on W-2/G-1. Subsea from 202 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,116 | 11,136 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 7.625 | 1,525 | 9.875 | 312 S |
| 3.5 | 11,480 | 6.5 | 1,350 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 | Feb 3, 1998 | Jan 21, 1998 | Yes |
| 00 | Jan 27, 1998 | — | — |
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 42-311-33468 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-33468 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/31133468, documented in the API reference.