TEXAS · WELLS · MONTGOMERY COUNTY · CONROE FIELD UNIT LEASE · API 42-339-30777 · DISTRICT 03
Conroe Field Unit #5510
Montgomery County · Conroe field · Vertical
- Fields on the latest permit · any of 2
- Conroe · Conroe ( Cockfield Upper)
- Not one formation; the well must be completed in one of them, and no target formation is stated.
Conroe Field Unit #5510 (API 42-339-30777) is a plugged well in Montgomery County, plugged May 17, 1993, last operated by Highmark Energy Operating LLC.
The RRC has issued one drilling permit, issued July 10, 1987, permitted to 5,200 ft.
It was permitted by Exxon Corp. and has since transferred to Highmark Energy Operating LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Moody Branch, Moody'S Branch, 1 Main, 1st Main.
Its lease has reported 26.8M barrels of oil and 61.4M mcf of gas since the record begins in January 1993, last reporting volume in August 2026. The lease carries 664 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Exxon Corp.; 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 | Highmark Energy Operating LLC |
| Production reports | Highmark Energy Operating, LLCthrough Aug 2026 |
| Latest permit | Exxon Corp.Jul 10, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,200
- total depth, ft
- 1
- permits on file
- Jul 10, 1987
- last permit issued
- Aug 22, 1988
- completed
- 26.8M
- cumulative oil, bbl
- 61.4M
- 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
- OFF SCHEDULE
- Completed
- Aug 22, 1988
- Shut in
- —
- Plugged
- May 17, 1993
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 664 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 | 26.8M | 61.4M | by Jan 1993 – Aug 2026 |
Oil, barrels lease total
Last 12 months 508,890 · prior 12 549,543(-7%)
Gas, mcf lease total
Last 12 months 170,976 · prior 12 244,158(-30%)
Wells named Conroe Field Unit
Highmark Energy Operating LLC's other wells filed under this lease name in Montgomery 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
Operator on the lease's P-4
Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.
| Operator | From | To |
|---|---|---|
| Highmark Energy Operating, LLC | Nov 1, 2024 | today |
| Denbury Onshore, LLC | Jan 1, 2010 | Nov 1, 2024 |
| Wapiti Operating, LLC | Sep 1, 2006 | Jan 1, 2010 |
| Exxon Mobil Corporation | Apr 1, 2000 | Sep 1, 2006 |
| Exxon Corp. | Oct 1, 1978 | Apr 1, 2000 |
Reporting production
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 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 332745-99 | Drill | Exxon Corp. | Jul 10, 1987 | Jul 10, 1987 | — | 5,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 22, 1988 | Conroe Field Unit O-3-11659 | Conroe | Highmark Energy Operating LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 175 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Moody Branch | 4,960 | -4,785 |
| Moody's Branch | 4,960 | -4,785 |
| 1 Main | 5,035 | -4,860 |
| 1ST Main | 5,035 | -4,860 |
| 2 Main | 5,082 | -4,907 |
| 2ND Main | 5,082 | -4,907 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,035 | 5,040 | Perforated |
| 5,082 | 5,094 | Perforated |
| 5,101 | 5,105 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,395 | 12.25 | 536 S |
| 5.5 | 5,511 | 8.75 | 377 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 | Sep 29, 1988 | Sep 8, 1988 | — |
| 00 | Sep 18, 1987 | Sep 8, 1987 | Yes |
| 00 | Sep 15, 1987 | — | — |
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 42-339-30777 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-339-30777 → 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/33930777, documented in the API reference.