TEXAS · WELLS · ROBERTS COUNTY · API 42-393-31947 · DISTRICT 08
Mahler #9
Roberts County · Mendota NW. (Granite Wash) field · Producing · Vertical
Mahler #9 (API 42-393-31947) is a well in Roberts County operated by Unit Petroleum Company, completed July 9, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 15, 2007, permitted to 11,250 ft.
Completion filings report 9 formation tops, including Brown Dolomite, Douglas, Heebner, Kansas City.
Its 2 leases have reported 119K barrels of oil and 3.21M mcf of gas since January 1993, last reporting in July 2026. The leases carry 9 wells, so these are lease totals, not this well alone.
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 CompanyMar 15, 2007 |
- 11,250
- total depth, ft
- 1
- permits on file
- Mar 15, 2007
- last permit issued
- Jul 9, 2007
- completed
- 119K
- cumulative oil, bbl
- 3.21M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 9, 2007
- 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 2 leases this well is completed on; they carry 9 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mahler G-14-234070 | Mendota, NW. (Granite Wash, SW.) | Unit Petroleum Company | 1 | 0 | 705K | Jan 2008 – Jul 2026 |
| Mahler O-14-5257 | Mendota, NW. (Granite Wash, SW.) | Unit Petroleum Company | 8 | 119K | 2.5M | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 12,020 · prior 12 12,819(-6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Unit Petroleum CompanyJan 1993 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 634822-99 | Drill | Unit Petroleum Company | Mar 8, 2007 | Mar 15, 2007 | Mar 22, 2007 | 11,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 9, 2007 | Mahler G-14-234070 | Mendota NW. (Granite Wash) | Unit Petroleum Company | Producing | 11,250 |
| Jul 9, 2007 | Mahler O-14-5257 | Mendota NW. (Granite Wash SW.) | Unit Petroleum Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,840 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Brown Dolomite | 4,142 | -1,302 |
| Douglas | 6,896 | -4,056 |
| Heebner | 6,896 | -4,056 |
| Kansas City | 8,050 | -5,210 |
| Marmaton | 8,930 | -6,090 |
| Granite Wash | 9,354 | -6,514 |
| Novi | 10,635 | -7,795 |
| Base 13 Finger | 10,860 | -8,020 |
| MorrowTOP MORROW | 10,860 | -8,020 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,593 | 9,675 | Perforated |
| 9,996 | 10,082 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,829 | 12.25 | 1,180 S |
| 5.5 | 11,250 | 7.875 | 525 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 | May 5, 2008 | Jan 18, 2008 | — |
| 00 | Apr 15, 2008 | Jan 18, 2008 | — |
| 00 | Mar 27, 2008 | — | — |
| 00 | Nov 19, 2007 | Sep 12, 2007 | Yes |
| 00 | Nov 9, 2007 | — | — |
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 42-393-31947 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-393-31947 → 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/39331947, documented in the API reference.