WELL · 42-467-30826 · DISTRICT 5
Tunnell A. R. 59 #18
Van Zandt County · Van (Austin Chalk) field · Directional
Tunnell A. R. 59 #18 (API 42-467-30826) is a plugged well in Van Zandt County, plugged August 5, 2012, last operated by Union Oil Company Of California.
The RRC has issued one drilling permit, issued February 19, 1991, permitted to 2,440 ft.
It was permitted by Unocal Exploration Corporation and has since transferred to Union Oil Company Of California on the wellbore schedule.
Completion filings report 3 formation tops, including Nacatoch, Pecan Gap, Austin Chalk.
Its lease has reported 125K barrels of oil and 281K mcf of gas since January 1993, last reporting in January 2013. The lease carries 8 wells, so these are lease totals, not this well alone.
Operator of record
Union Oil Company of California
Permitted by Unocal Exploration Corporation; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Sep 2, 2022 · 2,336 permits on file · (800) 231-0623
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Union Oil Company of California |
| Production reports | Union Oil Company of Californiathrough Nov 2009 |
| Latest permit | Unocal Exploration CorporationFeb 19, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,440
- total depth, ft
- 1
- permits on file
- Feb 19, 1991
- last permit issued
- Apr 13, 1991
- completed
- 125K
- cumulative oil, bbl
- 281K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jan 2013
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 13, 1991
- Shut in
- —
- Plugged
- Aug 5, 2012
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; they carry 8 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Tunnell, A. R. 59 O-5-3217 | Van (Austin Chalk) | Union Oil Company of California | 8 | 125K | 281K | Jan 1993 – Jan 2013 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Oil Company of CaliforniaJan 1993 → Nov 2009
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 384829-99 | Drill | Unocal Exploration Corporation | Feb 19, 1991 | Feb 19, 1991 | Mar 14, 1991 | 2,440 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-5-3217 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 508 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Nacatoch | 965 | -457 |
| Pecan Gap | 1,578 | -1,070 |
| Austin Chalk | 2,338 | -1,830 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,338 | 2,478 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 7.625 | 464 | 11 | 165 S |
| 4.5 | 2,527 | 6.75 | 275 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 | Jan 27, 1992 | May 15, 1991 | Yes |
| 00 | Jan 13, 1992 | — | — |
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 42-467-30826 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-467-30826 → 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.
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/46730826, documented in the API reference.