TEXAS · WELLS · HEMPHILL COUNTY · FRANK SHALLER LEASE · API 42-211-34455 · DISTRICT 08
Frank Shaller #23
Hemphill County · Hemphill (Granite Wash.) field · Producing · Vertical
- Fields on the latest permit · any of 2
- Canadian, SE (Douglas) · Hemphill (Granite Wash.)
- Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.
Frank Shaller #23 (API 42-211-34455) is a well in Hemphill County operated by Mewbourne Oil Company, completed December 17, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued October 3, 2008, permitted to 11,600 ft.
Completion filings report 4 formation tops, including Douglas, Tonkawa, Oswego, Granite Wash.
Its lease has reported 18.8K barrels of oil and 760K mcf of gas since December 2008, last reporting volume in August 2026.
Operator of record
- Based in
- Tyler, TX
- P-5 status
- Active (A)
- P-5 last filed
- May 21, 2026
- Permits on file
- 2,061
- Phone
- (903) 561-2900
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mewbourne Oil Company |
| Production reports | Mewbourne Oil Companythrough Apr 2026 |
| Latest permit | Mewbourne Oil CompanyOct 3, 2008 |
- 11,600
- total depth, ft
- 2
- permits on file
- Oct 3, 2008
- last permit issued
- Dec 17, 2008
- completed
- 18.8K
- cumulative oil, bbl
- 760K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · DEC 2008 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 17, 2008
- 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 AUG 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 |
|---|---|---|---|---|---|---|
| Frank Shaller G-14-245618 | Hemphill (Granite Wash.) | Mewbourne Oil Company | 1 | 18.8K | 760K | Dec 2008 – Aug 2026 |
Gas, mcf lease total
Last 12 months 23,013 · prior 12 23,504(-2%)
Wells named Frank Shaller
Mewbourne Oil 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.
- 1Mewbourne Oil CompanyDec 2008 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 671431-98 | Drill | Mewbourne Oil Company | Nov 19, 2008 | Oct 3, 2008 | Nov 4, 2008 | 11,800 |
| 671431-99 | Drill | Mewbourne Oil Company | Sep 18, 2008 | Oct 3, 2008 | Nov 4, 2008 | 11,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 17, 2008 | Frank Shaller G-14-245618 | Hemphill (Granite Wash.) | Mewbourne Oil Company | Producing | 11,600 |
Formation tops
As filed on W-2/G-1. Subsea from 2,445 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Douglas | 7,190 | -4,745 |
| Tonkawa | 7,936 | -5,491 |
| Oswego | 9,606 | -7,161 |
| Granite Wash | 10,208 | -7,763 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,399 | 10,592 | Perforated |
| 10,760 | 11,490 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,080 | 12.25 | 1,200 S |
| 4.5 | 11,585 | 8.75 | 665 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 | Mar 27, 2009 | Jan 14, 2009 | Yes |
| 00 | Mar 13, 2009 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Dec 13, 2011. Density, 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 POROSITYSpans Douglas, Tonkawa, Oswego, Granite Wash | TIFF | 3,800 to 11,594 | Dec 13, 2011run Nov 25, 2008 | 13.5 |
| RESISTIVITYSpans Douglas, Tonkawa, Oswego, Granite Wash | TIFF | 2,078 to 11,594 | Dec 13, 2011run Nov 25, 2008 | 11.8 |
"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 42-211-34455 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-211-34455 → 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/21134455, documented in the API reference.