WELL · 42-339-31098 · DISTRICT 3
McComb #320
Montgomery County · Wildcat field · Directional
Mccomb #320 (API 42-339-31098) is a well in Montgomery County operated by Denbury Onshore LLC, completed May 3, 2010.
The RRC has issued 2 drilling permits between 2010 and 2011, permitted to 12,000 ft.
Completion filings report 6 formation tops, including Moody'S Branch, First Upper Cockfield, Second Upper Cockfield, Main Conroe 1m.
Its 2 leases have reported 26.7M barrels of oil and 61.4M mcf of gas since January 1993, last reporting in July 2026. The leases carry 665 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Dec 30, 2025
- Permits on file
- 789
- Phone
- (866) 831-3235
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Denbury Onshore LLC |
| Production reports | Highmark Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Denbury Onshore, LLCJun 27, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 2
- permits on file
- Jun 27, 2011
- last permit issued
- May 3, 2010
- completed
- 26.7M
- cumulative oil, bbl
- 61.4M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 3, 2010
- Shut in
- —
- Plugged
- —
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 665 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Conroe Field Unit O-3-11659 | Conroe | Highmark Energy Operating, LLC | 664 | 26.7M | 61.4M | Jan 1993 – Jul 2026 |
| McComb G-3-259758 | Wildcat | Denbury Onshore, LLC | 1 | 0 | 0 | May 2010 – Jul 2011 |
Oil, barrels lease total
Last 12 months 528,577 · prior 12 506,957(+4%)
Gas, mcf lease total
Last 12 months 174,487 · prior 12 323,330(-46%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Aug 2006
- 3Wapiti Operating, LLCSep 2006 → Dec 2009
- 4Denbury Onshore, LLCJan 2010 → Oct 2024
- 5Highmark Energy Operating, LLCNov 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 718901-99 | Recompletion | Denbury Onshore, LLC | Jun 22, 2011 | Jun 27, 2011 | Jul 5, 2011 | 8,628 |
| 691671-99 | Drill | Ballard Exploration Company,inc. | Feb 22, 2010 | Feb 22, 2010 | Mar 22, 2010 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-259758 | — | — | — | — |
| — | — O-3-11659 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 159 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Moody's Branch | 4,685 | -4,526 |
| First Upper Cockfield | 4,730 | -4,571 |
| Second Upper Cockfield | 4,760 | -4,601 |
| Main Conroe 1M | — | — |
| Upper Cockfield 1 | — | — |
| Upper Cockfield 2 | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,964 | 4,972 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,660 | 17.5 | 1,366 S |
| 9.625 | 8,628 | 12.25 | 1,369 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 | Jul 1, 2021 | May 27, 2021 | — |
| 00 | Jul 6, 2017 | May 19, 2017 | — |
| 00 | Mar 26, 2012 | Aug 16, 2011 | — |
| 00 | May 16, 2011 | Aug 27, 2010 | Yes |
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 42-339-31098 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-339-31098 → 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/33931098, documented in the API reference.