TEXAS · WELLS · BORDEN COUNTY · JO-MILL UNIT LEASE · API 42-033-31831 · DISTRICT 7B
JO-Mill Unit #4317
Borden County · JO-Mill (Spraberry) field · Shut In · Vertical
JO-Mill Unit #4317 (API 42-033-31831) is a well in Borden County operated by JO Mill Oil Company LLC, completed January 15, 2003 and listed as shut in on the RRC schedule, shut in November 1, 2008.
The RRC has issued one drilling permit, issued October 30, 2002, permitted to 7,622 ft.
It was permitted by Chevron U. S. A. Inc. 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 46.3M barrels of oil and 22.2M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 487 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Chevron U. S. A. Inc.; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 30, 2026
- Phone
- (817) 263-3500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | JO Mill Oil Company LLC |
| Production reports | JO Mill Oil Company LLCthrough Aug 2026 |
| Latest permit | Chevron U. S. A. Inc.Oct 30, 2002 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,622
- total depth, ft
- 1
- permits on file
- Oct 30, 2002
- last permit issued
- Jan 15, 2003
- completed
- 46.3M
- cumulative oil, bbl
- 22.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 15, 2003
- Shut in
- Nov 1, 2008
- 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 AUG 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 487 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| JO-Mill Unit O-11-60465 | JO-Mill (Spraberry) | JO Mill Oil Company LLC | 487 | 46.3M | 22.2M | by Jan 1993 – Aug 2026 |
Oil, barrels lease total
Last 12 months 586,289 · prior 12 625,963(-6%)
Gas, mcf lease total
Last 12 months 166,469 · prior 12 175,095(-5%)
Wells named JO-Mill Unit
JO Mill Oil Company LLC's other wells filed under this lease name in Borden 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.
- 1Texaco E & P Inc.Jan 1993 → May 2002
- 2Chevron U. S. A. Inc.Jun 2002 → Sep 2020
- 3JO Mill Oil Company LLCOct 2020 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 525088-99 | Drill | Chevron U. S. A. Inc. | Oct 30, 2002 | Oct 30, 2002 | Dec 18, 2002 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 15, 2003 | JO-Mill Unit O-11-60465 | JO-Mill (Spraberry) | JO Mill Oil Company LLC | Shut In · shut in Nov 1, 2008 | 7,622 |
Formation tops
As filed on W-2/G-1. Subsea from 2,649 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 1,354 | 1,295 |
| Yates | 1,862 | 787 |
| San Andres | 3,587 | -938 |
| Clear ForkCLEARFORK | 4,756 | -2,107 |
| SpraberryLOWER SPRABERRY | 6,868 | -4,219 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,332 | 7,380 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 313 | 14.75 | 250 S |
| 8.625 | 4,267 | 11 | 1,600 S |
| 5.5 | 7,613 | 7.875 | 800 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 | Mar 24, 2003 | Feb 6, 2003 | Yes |
| 00 | Mar 4, 2003 | — | — |
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 42-033-31831 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-033-31831 → 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/03331831, documented in the API reference.