WELL · 42-441-81595 · DISTRICT 7
Clark J.H. #1R
Taylor County · Lana (Canyon 4140) field · Vertical
Clark J.H. #1R (API 42-441-81595) is a plugged well in Taylor County, plugged July 30, 2025, last operated by Ventex Operating Corp..
The RRC has issued one drilling permit, issued March 27, 1980, permitted to 4,860 ft.
It was permitted by Olympia Oil CO., Inc. and has since transferred to Ventex Operating Corp. on the wellbore schedule.
Completion filings report 5 formation tops, including Cisco, Swastica Sand, Swastika, Canyon.
Its 2 leases have reported 38.6K barrels of oil and 5.61K mcf of gas since January 1993, last reporting in August 2025. The leases carry 7 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Olympia Oil Co., Inc.; the EWA schedule now lists a different operator.
- Based in
- Addison, TX
- P-5 status
- Active (A)
- P-5 last filed
- May 18, 2026
- Permits on file
- 188
- Phone
- (214) 520-2929
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ventex Operating Corp. |
| Production reports | Sojourner Drilling Corporationthrough Sep 2021 |
| Latest permit | Olympia Oil Co., Inc.Mar 27, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,860
- total depth, ft
- 1
- permits on file
- Mar 27, 1980
- last permit issued
- Mar 2, 1983
- completed
- 38.6K
- cumulative oil, bbl
- 5.61K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2025
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 2, 1983
- Shut in
- —
- Plugged
- Jul 30, 2025
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 2 leases this well is completed on; they carry 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Clark O-8-27963 | Lana (Canyon 4140) | Sojourner Drilling Corporation | 5 | 37.9K | 5.61K | Sep 1996 – Aug 2025 |
| Clark,j.h. O-8-16242 | Lana (Canyon 4140) | Ventex Operating Corp. | 2 | 737 | 9 | Jan 1993 – Feb 1998 |
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.
- 1L.C.S. Production CompanyJan 1993 → Nov 1993
- 2Ventex Operating Corp.Oct 1996 → Jan 2014
- 3Sojourner Drilling CorporationFeb 2014 → Sep 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 76349-99 | Other | Olympia Oil Co., Inc. | Mar 27, 1980 | Mar 27, 1980 | May 8, 1980 | 4,860 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-16242 | — | — | — | — |
| — | — O-8-27963 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,823 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CiscoCISCO LIME | 2,655 | -832 |
| Swastica Sand | 3,040 | -1,217 |
| Swastika | 3,040 | -1,217 |
| CanyonCANYON REEF | 4,140 | -2,317 |
| Palo PintoPALO PINTO REEF | 4,141 | -2,318 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,142 | 4,144 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 126 | 11.25 | 100 sx |
| 10.75 | 133 | 11.25 | 100 S |
| 2.375 | 4,072 | — | — |
| 4.5 | 4,830 | 8.75 | 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Feb 4, 1998 | Sep 15, 1997 | — |
| 00 | Nov 19, 1997 | Sep 15, 1997 | — |
| 00 | Jun 21, 1984 | May 8, 1984 | — |
| 00 | Jan 12, 1984 | May 8, 1984 | — |
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 42-441-81595 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-441-81595 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 2.18K
- bbl, last 12 reported months
- 2.37M
- bbl, all reported
- Dec 2011
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000047296 | W-14 Disposal | Plugged Aug 11, 2025 | 0 | 0 | 4,142–4,144 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 2,180 · prior 12 548,363(-100%)
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/44181595, documented in the API reference.