WELL · 42-391-31588 · DISTRICT 2
Heard Clement #W524B
Refugio County · Tom Oconnor (7500) field · Vertical
Heard Clement #W524B (API 42-391-31588) is a well in Refugio County operated by Hilcorp Energy Company, completed April 5, 2002.
The RRC has issued 7 drilling permits (amended twice) between 1982 and 2009, permitted to 8,000 ft.
Completion filings report 8 formation tops, including Lagarto, Oakville, Cathoulaa (Miocene), Catahoula.
Its 7 leases have reported 25.2M barrels of oil and 16.8M mcf of gas since January 1993, last reporting in July 2026. The leases carry 682 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 593K barrels injected in the 12 months reported through November 2025.
Operator of record
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,453 permits on file · (713) 209-2411
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Apr 2026 |
| Latest permit | Hilcorp Energy CompanyAug 5, 2009 |
- 8,000
- total depth, ft
- 9
- permits on file
- Aug 5, 2009
- last permit issued
- Apr 5, 2002
- completed
- 25.2M
- cumulative oil, bbl
- 16.8M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 5, 2002
- 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 7 leases this well is completed on; they carry 682 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Heard, Clement O-2-2873 | Tom Oconnor (5900 Sand) | Hilcorp Energy Company | 22 | 1.22M | 1.07M | Jan 1993 – Jul 2026 |
| Tom Oconnor (5800 SD) Fld. Unit O-2-5280 | Tom Oconnor (5800) | Hilcorp Energy Company | 594 | 22.8M | 14.9M | Jan 1993 – Jul 2026 |
| Tom O'CONNOR(5600 Foot Sand)unit O-2-8950 | Tom O'Connor (5600 Foot Sand) | Hilcorp Energy Company | 59 | 1.13M | 357K | Mar 2005 – Jul 2026 |
| Heard, Clement O-2-4791 | Tom Oconnor (7500) | Hilcorp Energy Company | 4 | 105K | 332K | Jan 1993 – Oct 2010 |
| Heard, Clement O-2-9126 | Tom O'Connor (6150) | Hilcorp Energy Company | 1 | 5.06K | 16.2K | Mar 2007 – May 2009 |
| Heard, Clement O-2-8967 | Tom Oconnor (6300) | Hilcorp Energy Company | 1 | 2.56K | 24.5K | Apr 2005 – Jun 2007 |
| Heard, Clement G-2-199046 | Tom Oconnor (6300) | Hilcorp Energy Company | 1 | 0 | 53.4K | Sep 2003 – Apr 2005 |
Oil, barrels lease total
Last 12 months 693,985 · prior 12 541,304(+28%)
Gas, mcf lease total
Last 12 months 117,980 · prior 12 84,210(+40%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Quintana Pet. Corp.Jan 1993 → Nov 2000
- 2Hilcorp Energy CompanyDec 2000 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 683607-99 | Recompletion | Hilcorp Energy Company | Jul 29, 2009 | Aug 5, 2009 | Feb 25, 2010 | 7,808 |
| 678519-99 | Recompletion | Hilcorp Energy Company | Feb 12, 2009 | Feb 25, 2009 | Feb 19, 2009 | 7,808 |
| 634896-99 | Recompletion | Hilcorp Energy Company | Mar 8, 2007 | Mar 15, 2007 | Mar 1, 2007 | 7,808 |
| 521528-98 | Recompletion | Hilcorp Energy Company | Oct 1, 2003 | Jul 3, 2002 | Sep 24, 2003 | 7,808 |
| 521528-99 | Recompletion | Hilcorp Energy Company | Jul 2, 2002 | Jul 3, 2002 | — | 7,808 |
| 512060-98 | Recompletion | Hilcorp Energy Company | Apr 16, 2002 | Aug 3, 2001 | Mar 8, 2002 | 7,808 |
| 512060-99 | Recompletion | Hilcorp Energy Company | Jul 31, 2001 | Aug 3, 2001 | — | 7,808 |
| 357358-99 | Recompletion | Quintana Pet. Corp. | Mar 23, 1989 | Mar 28, 1989 | — | 7,808 |
| 172680-99 | Drill | Quintana Pet. Corp. | Sep 22, 1982 | Sep 22, 1982 | — | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-199046 | — | — | — | — |
| — | — O-2-2873 | — | — | — | — |
| — | — O-2-2873 | — | — | — | — |
| — | — O-2-4791 | — | — | — | — |
| — | — O-2-5280 | — | — | — | — |
| — | — O-2-8950 | — | — | — | — |
| — | — O-2-8967 | — | — | — | — |
| — | — O-2-9126 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 59 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| LagartoLARGARTO | 1,500 | -1,441 |
| LagartoLARGARTO | 2,750 | -2,691 |
| Oakville | 2,750 | -2,691 |
| Cathoulaa (Miocene) | 3,300 | -3,241 |
| Catahoula | 3,570 | -3,511 |
| AnahuacANAHUAC (MIOCENE) | 4,100 | -4,041 |
| Oakville | 4,100 | -4,041 |
| Frio | 4,325 | -4,266 |
| Anahuac | 4,365 | -4,306 |
| FrioFRIO-GRETA (OLIGOCENE) | 4,365 | -4,306 |
| FrioMIDDLE FRIO (SINTON) | 5,000 | -4,941 |
| FrioLOWER FRIO (OLIGOCENE) | 5,880 | -5,821 |
| Frio | 7,808 | -7,749 |
| JacksonJACKSON/YEGUA | — | — |
| NO Change | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,538 | 5,556 | Perforated |
| 5,704 | 5,711 | Perforated |
| 5,882 | 5,886 | Perforated |
| 5,890 | 5,897 | Perforated |
| 6,136 | 6,138 | Perforated |
| 6,194 | 6,200 | Perforated |
| 6,256 | 6,260 | Perforated |
| 7,408 | 7,416 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,505 | 14.75 | 770 S |
| 2.875 | 5,864 | — | — |
| 7 | 7,803 | 9.875 | 1,860 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 | Feb 18, 2015 | Dec 15, 2014 | — |
| 00 | May 31, 2011 | Jan 3, 2011 | — |
| 00 | Jul 8, 2010 | Mar 23, 2010 | Yes |
| 00 | May 11, 2010 | — | — |
| 00 | Jun 22, 2009 | Mar 2, 2009 | Yes |
| 00 | May 8, 2009 | — | — |
| 00 | Jun 15, 2007 | Mar 20, 2007 | Yes |
| 00 | Jun 6, 2007 | — | — |
| 00 | Sep 2, 2005 | Apr 19, 2005 | — |
| 00 | Jun 24, 2005 | — | — |
| 00 | Apr 22, 2004 | Oct 9, 2003 | Yes |
| 00 | Feb 11, 2004 | — | — |
| 00 | Jun 11, 2002 | Apr 25, 2002 | Yes |
| 00 | May 1, 2002 | — | — |
| 00 | Feb 28, 1990 | Oct 30, 1989 | Yes |
| 00 | Jan 31, 1990 | Nov 16, 1982 | Yes |
| 00 | Nov 10, 1989 | — | — |
| 00 | Jan 12, 1984 | Nov 16, 1982 | — |
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 42-391-31588 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-391-31588 → 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
- 593K
- bbl, last 12 reported months
- 8.22M
- bbl, all reported
- Nov 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000102425 | H-1 Injection | Active | 37,498 | 2,190 | 4,380–5,600 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 593,329 · prior 12 519,406(+14%)
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/39131588, documented in the API reference.