TEXAS · WELLS · ZAPATA COUNTY · SULLIVAN-HEIN LEASE · API 42-505-31084 · DISTRICT 04
Sullivan-Hein #4
Zapata County · La Perla (Lobo Cons.) field · Vertical
Sullivan-Hein #4 (API 42-505-31084) is a plugged well in Zapata County, plugged January 28, 2001, last operated by Michael Petroleum Corporation.
The RRC has issued 2 drilling permits between 1979 and 1987, permitted to 11,000 ft.
It was permitted by Enron Oil & Gas Company and has since transferred to Michael Petroleum Corporation on the wellbore schedule.
Completion filings report 2 formation tops, including Lobo Sand, Wills Point.
Its lease has reported 8 barrels of oil and 93.4K mcf of gas since January 1993, with no volume in the three years through April 2026.
Operator of record
Permitted by Enron Oil & Gas Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Inactive (I)
- P-5 last filed
- Jul 10, 2001
- Permits on file
- 271
- Phone
- (713) 895-0909
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Michael Petroleum Corporation |
| Production reports | Michael Petroleum Corporationthrough Dec 1999 |
| Latest permit | Enron Oil & Gas CompanyOct 1, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,000
- total depth, ft
- 2
- permits on file
- Oct 1, 1987
- last permit issued
- Mar 10, 1988
- completed
- 8
- cumulative oil, bbl
- 93.4K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Dec 1999
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 10, 1988
- Shut in
- —
- Plugged
- Jan 28, 2001
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 |
|---|---|---|---|---|---|---|
| Sullivan-Hein G-4-83852 | La Perla (Lobo Cons.) | Michael Petroleum Corporation | 1 | 8 | 93.4K | Jan 1993 – Dec 1999 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Enron Oil & Gas CompanyJan 1993 → Mar 1998
- 2Michael Petroleum CorporationApr 1998 → Dec 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 336575-99 | Recompletion | Enron Oil & Gas Company | Sep 28, 1987 | Oct 1, 1987 | — | 11,000 |
| 47027-99 | Drill | HNG Oil Company | Apr 23, 1979 | Apr 23, 1979 | Apr 18, 1979 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 10, 1988 | Sullivan-Hein G-4-83852 | La Perla (Lobo Cons.) | Michael Petroleum Corporation | Plugged | — |
| Mar 10, 1988 | Sullivan-Hein G-4-83852 | La Perla (Lobo Cons.) | Michael Petroleum Corporation | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 429 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo Sand | 9,888 | -9,459 |
| Wills Point | 10,198 | -9,769 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,407 | 9,523 | Perforated |
| 9,816 | 9,923 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 838 | — | — |
| 7 | 6,998 | — | — |
| 2.875 | 10,200 | 3.75 | 170 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 | May 17, 1988 | May 3, 1988 | Yes |
| 00 | May 3, 1988 | Mar 22, 1988 | Yes |
| 00 | Jan 12, 1984 | Sep 4, 1979 | — |
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 42-505-31084 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-31084 → 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/50531084, documented in the API reference.