TEXAS · WELLS · DE WITT COUNTY · CLARK B - CLARK A SA LEASE · API 42-123-34033 · DISTRICT 02
Clark B - Clark a SA #1H
De Witt County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Clark B - Clark A SA #1H (API 42-123-34033) is a horizontal well in De Witt County operated by Devon Energy Production CO L.P., completed April 15, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 26, 2015, permitted to 12,015 ft.
It was permitted by Bhp Billiton Pet(Txla OP) CO and has since transferred to Devon Energy Production CO L.P. on the wellbore schedule.
Completion filings report 13 formation tops, including Frio, Vicksburg, Yegua, Cook Mountain.
Its lease has reported 163K barrels of oil and 236K mcf of gas since July 2015, last reporting volume in January 2026.
Operator of record
Devon Energy Production Co L.P.
Permitted by BHP Billiton Pet(txla OP) Co; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Dec 18, 2025
- Permits on file
- 9,266
- Phone
- (405) 235-3611
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Devon Energy Production Co L.P. |
| Production reports | Devon Energy Production Co, L.P.through Jan 2026 |
| Latest permit | BHP Billiton Pet(txla OP) CoMar 26, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,015
- total depth, ft
- 1
- permits on file
- Mar 26, 2015
- last permit issued
- Apr 15, 2016
- completed
- 163K
- cumulative oil, bbl
- 236K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2016 THROUGH Jan 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 15, 2016
- 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 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 |
|---|---|---|---|---|---|---|
| Clark B - Clark a SA O-2-11090 | Eagleville (Eagle Ford-2) | Devon Energy Production Co, L.P. | 1 | 163K | 236K | Jul 2015 – Jan 2026 |
Oil, barrels lease total
Last 12 months 453 · prior 12 3,839(-88%)
Gas, mcf lease total
Last 12 months 24 · prior 12 3,025(-99%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Jan 2016 → Jan 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 804609-99 | Drill | BHP Billiton Pet(txla OP) Co | Mar 12, 2015 | Mar 26, 2015 | Apr 12, 2015 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 15, 2016 | Clark B - Clark a SA O-2-11090 | Eagleville (Eagle Ford-2) | Devon Energy Production Co L.P. | Producing | 12,015 |
Formation tops
As filed on W-2/G-1. Subsea from 410 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Frio | 100 | 310 |
| Vicksburg | 500 | -90 |
| Yegua | 1,750 | -1,340 |
| Yegua | 2,035 | -1,625 |
| Cook Mountain | 2,765 | -2,355 |
| Sparta | 3,420 | -3,010 |
| Wilcox | 4,720 | -4,310 |
| Wilcox | 4,750 | -4,340 |
| Midway | 8,921 | -8,511 |
| Navarro | 9,982 | -9,572 |
| Anacacho | 11,419 | -11,009 |
| Austin Chalk | 11,623 | -11,213 |
| Eagle Ford | 12,070 | -11,660 |
| Catahoula | — | — |
| EdwardsEDWARDS - H2S | — | — |
| Frio | — | — |
| Vicksburg | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,563 | 15,415 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,672 | 12.25 | 1,225 S |
| 5.5 | 12,306 | 6.75 | 895 S |
| 4.5 | 15,532 | 6.75 | 895 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 | Jun 23, 2016 | Jun 6, 2016 | Yes |
| 00 | May 5, 2016 | Apr 4, 2016 | — |
| 00 | Feb 10, 2016 | Nov 4, 2015 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Jul 18, 2018. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Midway, Navarro, Anacacho, Austin Chalk, Eagle Ford | TIFF | 9,681 to 15,540 | Jul 18, 2018run Jul 12, 2015 | 0.75 |
"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 42-123-34033 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-34033 → 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/12334033, documented in the API reference.