TEXAS · WELLS · BRAZORIA COUNTY · API 42-039-33023 · DISTRICT 03
Old Ocean Unit #255
Brazoria County · Old Ocean (F-26) field · Producing · Directional
Old Ocean Unit #255 (API 42-039-33023) is a well in Brazoria County operated by Hilcorp Energy Company, completed November 19, 2010 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 21, 2009, permitted to 11,302 ft.
Completion filings report 3 formation tops, including Chenault, Armstrong, Larsen.
Its 3 leases have reported 1.78K barrels of oil and 1.21M mcf of gas since January 2010, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,454
- Phone
- (713) 209-2400
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 CompanyMay 21, 2009 |
- 11,302
- total depth, ft
- 1
- permits on file
- May 21, 2009
- last permit issued
- Nov 19, 2010
- completed
- 1.78K
- cumulative oil, bbl
- 1.21M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2010 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 19, 2010
- Shut in
- —
- 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 |
|---|---|---|---|---|---|---|
| Old Ocean Unit G-3-256593 | Old Ocean (F-26) | Hilcorp Energy Company | 1 | 0 | 1.2M | Mar 2010 – Jul 2026 |
| Old Ocean Unit G-3-258492 | Old Ocean (F-25) | Hilcorp Energy Company | 1 | 0 | 0 | Mar 2010 – Jul 2026 |
| Old Ocean Unit O-3-25493 | Old Ocean, S. (Hellmuth 12,500) | Hilcorp Energy Company | 1 | 1.78K | 9.91K | Jan 2010 – Dec 2010 |
Gas, mcf lease total
Last 12 months 7,611 · prior 12 1,487(+412%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Hilcorp Energy CompanyJan 2010 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 681412-99 | Drill | Hilcorp Energy Company | May 19, 2009 | May 21, 2009 | Nov 24, 2009 | 13,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 19, 2010 | Old Ocean Unit G-3-256593 | Old Ocean (F-26) | Hilcorp Energy Company | Producing | 11,302 |
| Mar 20, 2010 | Old Ocean Unit G-3-258492 | Old Ocean (F-25) | Hilcorp Energy Company | SWR-10-Well · shut in Mar 1, 2010 | 11,302 |
| Jan 16, 2010 | Old Ocean Unit O-3-25493 | Old Ocean S. (Hellmuth 12 500) | Hilcorp Energy Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 25 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Chenault | 9,925 | -9,900 |
| Armstrong | 10,250 | -10,225 |
| Larsen | 10,740 | -10,715 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,244 | 11,295 | Perforated |
| 11,244 | 12,000 | Perforated |
| 11,346 | 11,460 | Perforated |
| 11,346 | 11,500 | Perforated |
| 11,817 | 11,891 | Perforated |
| 11,817 | 12,000 | Perforated |
| 11,933 | 12,000 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,548 | 13.5 | 875 S |
| 7 | 11,020 | 9.875 | 850 S |
| 4.5 | 12,104 | 6.125 | 200 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 29, 2011 | Feb 28, 2011 | Yes |
| 00 | Jan 25, 2011 | Jul 28, 2010 | — |
| 00 | Jan 10, 2011 | — | — |
| 00 | Sep 20, 2010 | May 3, 2010 | — |
| 00 | Sep 2, 2010 | Apr 12, 2010 | — |
| 00 | Jul 22, 2010 | — | — |
| 00 | Jun 3, 2010 | Feb 12, 2010 | Yes |
| 00 | May 10, 2010 | — | — |
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 42-039-33023 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-039-33023 → 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/03933023, documented in the API reference.