TEXAS · WELLS · HEMPHILL COUNTY · ISAACS "B" LEASE · API 42-211-33448 · DISTRICT 08
Isaacs B #1
Hemphill County · Mendota NW. (Granite Wash) field · Producing · Vertical
- Fields on the latest permit · any of 2
- Mendota, NW. (Granite Wash) · Mendota, NW. (Granite Wash, SW.)
- Not one formation; the well must be completed in one of them, and no target formation is stated.
Isaacs B #1 (API 42-211-33448) is a well in Hemphill County operated by Unit Petroleum Company, completed December 28, 2005 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued November 7, 2005, permitted to 11,250 ft.
Completion filings report 6 formation tops, including Marmaton, Granite Wash, Novi, B Finger.
Its lease has reported 11.2K barrels of oil and 672K mcf of gas since December 2005, last reporting volume in April 2026.
Operator of record
- Based in
- Tulsa, OK
- P-5 status
- Active (A)
- P-5 last filed
- Jan 13, 2025
- Permits on file
- 1,100
- Phone
- (918) 493-7700
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Unit Petroleum Company |
| Production reports | Unit Petroleum Companythrough Apr 2026 |
| Latest permit | Unit Petroleum CompanyNov 7, 2005 |
- 11,250
- total depth, ft
- 2
- permits on file
- Nov 7, 2005
- last permit issued
- Dec 28, 2005
- completed
- 11.2K
- cumulative oil, bbl
- 672K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2006 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 28, 2005
- 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.
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 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 |
|---|---|---|---|---|---|---|
| Isaacs "B" G-14-216366 | Mendota, NW. (Granite Wash) | Unit Petroleum Company | 1 | 11.2K | 672K | Dec 2005 – Apr 2026 |
Gas, mcf lease total
Last 12 months 3,170 · prior 12 3,345(-5%)
Wells named Isaacs B
Unit Petroleum Company's other wells filed under this lease name in Hemphill 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
Every operator that reported production on this well's lease, in order.
- 1Unit Petroleum CompanyFeb 2006 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 609031-98 | Drill | Unit Petroleum Company | May 24, 2006 | Nov 7, 2005 | Nov 21, 2005 | 11,250 |
| 609031-99 | Drill | Unit Petroleum Company | Nov 4, 2005 | Nov 7, 2005 | Nov 21, 2005 | 11,250 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 28, 2005 | Isaacs B G-14-216366 | Mendota NW. (Granite Wash) | Unit Petroleum Company | Producing | 11,250 |
Formation tops
As filed on W-2/G-1. Subsea from 2,707 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Marmaton | 9,050 | -6,343 |
| Granite Wash | 9,553 | -6,846 |
| Novi | 10,739 | -8,032 |
| B Finger | 10,895 | -8,188 |
| MorrowUPPER MORROW | 11,094 | -8,387 |
| TD | 11,250 | -8,543 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,079 | 10,081 | Perforated |
| 10,085 | 10,100 | Perforated |
| 10,133 | 10,135 | Perforated |
| 10,376 | 10,380 | Perforated |
| 10,629 | 10,623 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,203 | 12.25 | 1,000 S |
| 5.5 | 11,248 | 8.75 | 360 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 | Oct 3, 2006 | Apr 3, 2006 | Yes |
| 00 | Jun 14, 2006 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Sep 20, 2007. Density, Gamma ray, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Neutron/Density PorosityCOMPENSATED Z-DENSILOG COMP. NEUTRON MINILOG DIGITAL SPECTRALOGSpans Marmaton, Granite Wash, Novi, B Finger, Morrow | TIFF | 6,750 to 11,244 | Sep 20, 2007run Dec 18, 2005 | — |
| ResistivityHIGH DEFINITION INDUCTION LOG GAMMA RAY LOGSpans Marmaton, Granite Wash, Novi, B Finger, Morrow | TIFF | 3,196 to 11,244 | Sep 20, 2007run Dec 18, 2005 | — |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-211-33448 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-33448 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search 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/21133448, documented in the API reference.