WELL · 42-033-31658 · DISTRICT 8
West JO-Mill Unit #612W
Borden County · JO-Mill (Spraberry) field · Injection · Vertical
West JO-Mill Unit #612W (API 42-033-31658) is a well in Borden County operated by JO Mill Oil Company LLC, completed December 6, 1996 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued August 12, 1996, permitted to 8,000 ft.
It was permitted by Phillips Petroleum Company and has since transferred to JO Mill Oil Company LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Rustler, Yates, San Andres, Clear Fork.
Its lease has reported 7.68M barrels of oil and 2.74M mcf of gas since January 1993, last reporting in July 2026. The lease carries 103 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 97K barrels injected in the 12 months reported through August 2025.
Operator of record
Permitted by Phillips Petroleum Company; the EWA schedule now lists a different operator.
Fort Worth, TX · P-5 Y, filed May 4, 2026 · (682) 715-5794
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | JO Mill Oil Company LLC |
| Production reports | JO Mill Oil Company LLCthrough Apr 2026 |
| Latest permit | Phillips Petroleum CompanyAug 12, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,000
- total depth, ft
- 1
- permits on file
- Aug 12, 1996
- last permit issued
- Dec 6, 1996
- completed
- 7.68M
- cumulative oil, bbl
- 2.74M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 6, 1996
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 103 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| West JO-Mill Unit O-11-61062 | JO-Mill (Spraberry) | JO Mill Oil Company LLC | 103 | 7.68M | 2.74M | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 87,073 · prior 12 110,705(-21%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Phillips Petroleum CompanyJan 1993 → Dec 2002
- 2Conocophillips CompanyJan 2003 → Jun 2018
- 3Great Western Drilling CompanyJul 2018 → Oct 2024
- 4Basin Oil & Gas Operating, LLCNov 2024 → Mar 2025
- 5JO Mill Oil Company LLCApr 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 451363-99 | Drill | Phillips Petroleum Company | Aug 12, 1996 | Aug 12, 1996 | Sep 3, 1996 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-61062 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,699 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,382 | 1,317 |
| Yates | 1,971 | 728 |
| San Andres | 3,282 | -583 |
| Clear ForkBASE CLEAR FORK | 6,290 | -3,591 |
| SpraberryUPPER SPRABERRY | 6,481 | -3,782 |
| SpraberryLOWER SPRABERRY | 6,987 | -4,288 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,436 | 7,466 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 358 | 14.75 | 230 S |
| 8.625 | 4,365 | 11 | 1,050 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 | May 12, 1997 | Jan 8, 1997 | Yes |
| 00 | Apr 10, 1997 | — | — |
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 42-033-31658 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-033-31658 → 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
- 97K
- bbl, last 12 reported months
- 1.47M
- bbl, all reported
- Aug 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000085501 | H-1 Injection | Active | 1,500 | 1,500 | 7,436–7,466 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 97,014 · prior 12 98,234(-1%)
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/03331658, documented in the API reference.