TEXAS · WELLS · MONTGOMERY COUNTY · API 42-339-31000 · DISTRICT 03
Keystone Mills #46
Montgomery County · Wildcat field · SWR-10-Well · Vertical
Keystone Mills #46 (API 42-339-31000) is a well in Montgomery County operated by Highmark Energy Operating LLC, completed December 16, 2001 and listed as swr-10-well on the RRC schedule, shut in October 1, 2007.
The RRC has issued one drilling permit, issued August 9, 2001, permitted to 10,925 ft.
It was permitted by Exxon Mobil Corporation and has since transferred to Highmark Energy Operating LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Wilcox, Wilcox9600, Wildcat, Wilcox25-10,300.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Exxon Mobil Corporation; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 9, 2026
- Permits on file
- 23
- Phone
- (469) 214-5299
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Exxon Mobil Corporation |
| Production reports | Wapiti Operating, LLCthrough Sep 2007 |
| Latest permit | Exxon Mobil CorporationAug 9, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,925
- total depth, ft
- 1
- permits on file
- Aug 9, 2001
- last permit issued
- Dec 16, 2001
- completed
- 0
- cumulative oil, bbl
- 5.49M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2001 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 16, 2001
- Shut in
- Oct 1, 2007
- 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.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Keystone Mills Co. G-3-190753 | Conroe, S. (Wilcox 25-10,300) | Highmark Energy Operating, LLC | 1 | 0 | 5.49M | Dec 2001 – Jul 2026 |
| Keystone Mills G-3-190877 | Wildcat | Highmark Energy Operating, LLC | 1 | 0 | 0 | Dec 2001 – Jul 2026 |
| Keystone Mills G-3-190878 | Conroe, S. (Wilcox 10,000) | Exxon Mobil Corporation | 1 | 0 | 0 | Jan 2002 – Aug 2003 |
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.
- 1Exxon Mobil CorporationJan 2002 → Aug 2006
- 2Wapiti Operating, LLCSep 2006 → Sep 2007
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 511285-99 | Drill | Exxon Mobil Corporation | Jul 10, 2001 | Aug 9, 2001 | Sep 16, 2001 | 12,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 1, 2003 | Keystone Mills Co. G-3-190753 | Conroe (Middle Wilcox Cons.) | Highmark Energy Operating LLC | Temp Abandoned · shut in Oct 1, 2007 | 10,925 |
| Dec 16, 2001 | Keystone Mills G-3-190877 | Wildcat | Highmark Energy Operating LLC | SWR-10-Well · shut in Dec 1, 2001 | 10,925 |
| Jan 7, 2002 | Keystone Mills G-3-190878 | Conroe S. (Wilcox 10 000) | Exxon Mobil Corporation | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 21 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,020 | 10,026 | Perforated |
| 10,488 | 10,494 | Perforated |
| 10,626 | 10,632 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,628 | 17.5 | 1,270 S |
| 9.625 | 9,330 | 12.25 | 2,000 S |
| 7.625 | 9,649 | 8.5 | 130 S |
| 4.5 | 10,925 | 6.75 | 460 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 | Mar 3, 2004 | Jan 26, 2004 | — |
| 00 | Oct 20, 2003 | Sep 10, 2003 | — |
| 00 | Oct 29, 2002 | May 6, 2002 | — |
| 00 | Oct 28, 2002 | May 6, 2002 | Yes |
| 00 | Oct 10, 2002 | — | — |
| 00 | Oct 9, 2002 | — | — |
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 42-339-31000 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-339-31000 → 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/33931000, documented in the API reference.