WELL · 42-481-34321 · DISTRICT 3
Rocking M #4
Wharton County · Bonus SW. (Wilcox) field · Producing · Vertical
Rocking M #4 (API 42-481-34321) is a well in Wharton County operated by Hilcorp Energy Company, completed November 8, 2006 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 5, 2001, permitted to 14,500 ft.
It was permitted by Coastal Oil & Gas Corporation and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 2 formation tops, including Yegua, Wilcox.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Coastal Oil & Gas Corporation; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,454 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 | Coastal Oil & Gas CorporationMar 5, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,500
- total depth, ft
- 1
- permits on file
- Mar 5, 2001
- last permit issued
- Nov 8, 2006
- completed
- 0
- cumulative oil, bbl
- 1M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2001 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 8, 2006
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Rocking "M" G-3-183688 | Bonus, SW. (Wilcox) | Hilcorp Energy Company | 1 | 0 | 1M | May 2001 – Jul 2026 |
Gas, mcf lease total
Last 12 months 5,086 · prior 12 5,366(-5%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EL Paso Production Oil & Gas Co.May 2001 → Jun 2002
- 2Dominion Expl. & Prod., Inc.Jul 2002 → Jul 2007
- 3XTO Energy Inc.Aug 2007 → Oct 2016
- 4Hilcorp Energy CompanyNov 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 506040-99 | Drill | Coastal Oil & Gas Corporation | Mar 5, 2001 | Mar 5, 2001 | Mar 28, 2001 | 14,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-183688 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 127 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,518 | 11,526 | Perforated |
| 11,518 | 11,552 | Perforated |
| 11,534 | 11,552 | Perforated |
| 11,808 | 11,830 | Perforated |
| 12,433 | 12,540 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 7.625 | 1,117 | 8.5 | 85 S |
| 13.375 | 3,010 | 17.5 | 1,682 S |
| 5 | 8,280 | 6.5 | 465 S |
| 9.625 | 10,320 | 12.25 | 526 S |
| 5 | 12,800 | 8.5 | 465 S |
| 4.5 | 12,800 | 6.5 | 465 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 | Apr 27, 2007 | Jan 12, 2007 | — |
| 00 | Sep 4, 2001 | Jul 16, 2001 | Yes |
| 00 | Aug 13, 2001 | — | — |
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 42-481-34321 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-481-34321 → 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/48134321, documented in the API reference.