WELL · 42-371-36920 · DISTRICT 8
Sullivan Unit #D 20
Pecos County · Brown & Thorp (Clear Fork) field · Injection · Vertical
Sullivan Unit #D 20 (API 42-371-36920) is a well in Pecos County operated by Caroil LLC, completed September 23, 1999 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued July 6, 1999, permitted to 3,300 ft.
It was permitted by Energen Resources Corporation and has since transferred to Caroil LLC on the wellbore schedule.
Completion filings report 3 formation tops, including San Andres, Glorieta, Clear Fork.
Its lease has reported 151K barrels of oil since January 1998, last reporting in July 2026. The lease carries 30 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 711 barrels injected in the 12 months reported through May 2025.
Operator of record
Permitted by Energen Resources Corporation; the EWA schedule now lists a different operator.
Odessa, TX · P-5 Y, filed Jan 4, 2026 · (432) 528-6655
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Caroil LLC |
| Production reports | Caroil, LLCthrough Apr 2026 |
| Latest permit | Energen Resources CorporationJul 6, 1999 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,300
- total depth, ft
- 1
- permits on file
- Jul 6, 1999
- last permit issued
- Sep 23, 1999
- completed
- 151K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1998 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 23, 1999
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Delinquent
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 30 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Sullivan Unit O-10-35613 | Brown & Thorp (Clear Fork) | Caroil, LLC | 30 | 151K | 0 | Jan 1998 – Jul 2026 |
Oil, barrels lease total
Last 12 months 3,368 · prior 12 3,700(-9%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1BC Operating, Inc.Jan 1998 → Feb 1998
- 2Taurus Exploration U.S.A., Inc.Mar 1998 → Nov 1998
- 3Energen Resources CorporationDec 1998 → May 2003
- 4Hodges Oil & GasJun 2003 → Jan 2016
- 5EL Jefe Oil & GasFeb 2016 → Dec 2016
- 6EL Jefe Oil and Gas, LLCJan 2017 → Mar 2017
- 7Caroil, LLCApr 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 485680-99 | Drill | Energen Resources Corporation | Jul 6, 1999 | Jul 6, 1999 | Jul 13, 1999 | 3,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-35613 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,390 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Andres | 1,725 | 665 |
| Glorieta | 2,525 | -135 |
| Clear ForkUPPER CLEARFORK | 2,605 | -215 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,106 | 3,116 | Perforated |
| 3,122 | 3,136 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 600 | 12.25 | 210 S |
| 5.5 | 3,300 | 7.875 | 625 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 | Dec 6, 1999 | Oct 8, 1999 | Yes |
| 00 | Nov 15, 1999 | — | — |
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 42-371-36920 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-36920 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 711
- bbl, last 12 reported months
- 192K
- bbl, all reported
- May 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000089250 | H-1 Injection | Active | 500 | 1,500 | 3,050–3,100 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 711 · prior 12 1,497(-53%)
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/37136920, documented in the API reference.