TEXAS · WELLS · PANOLA COUNTY · MASON LEASE · API 42-365-37043 · DISTRICT 06
Mason #21
Panola County · Carthage (Cotton Valley) field · Producing · Directional
Mason #21 (API 42-365-37043) is a well in Panola County operated by Diversified Production LLC, completed June 5, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 28, 2008, permitted to 9,556 ft.
It was permitted by Devon Energy Production CO, L.P. and has since transferred to Diversified Production LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Pettit, Travis Peak, Cotton Valley.
Its lease has reported 7.68K barrels of oil and 1.33M mcf of gas since June 2008, last reporting volume in April 2026.
Operator of record
Permitted by Devon Energy Production Co, L.P.; the EWA schedule now lists a different operator.
- Based in
- Keithville, LA
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 25, 2026
- Permits on file
- 11
- Phone
- (318) 751-3917
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diversified Production LLC |
| Production reports | Diversified Production LLCthrough Apr 2026 |
| Latest permit | Devon Energy Production Co, L.P.Mar 28, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,556
- total depth, ft
- 1
- permits on file
- Mar 28, 2008
- last permit issued
- Jun 5, 2008
- completed
- 7.68K
- cumulative oil, bbl
- 1.33M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2008 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 5, 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 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 |
|---|---|---|---|---|---|---|
| Mason G-6-237563 | Carthage (Cotton Valley) | Diversified Production LLC | 1 | 7.68K | 1.33M | Jun 2008 – Apr 2026 |
Gas, mcf lease total
Last 12 months 20,413 · prior 12 20,475(0%)
Wells named Mason
Diversified Production LLC's other wells filed under this lease name in Panola 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.
- 1Devon Energy Production Co, L.P.Jun 2008 → Jun 2016
- 2Sheridan Production Company, LLCJul 2016 → Dec 2019
- 3Sheridan Production Co III, LLCJan 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 657333-99 | Drill | Devon Energy Production Co, L.P. | Mar 13, 2008 | Mar 28, 2008 | Apr 29, 2008 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 5, 2008 | Mason G-6-237563 | Carthage (Cotton Valley) | Diversified Production LLC | Producing | 9,556 |
Formation tops
As filed on W-2/G-1. Subsea from 307 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pettit | 5,820 | -5,513 |
| Travis Peak | 6,213 | -5,906 |
| Cotton Valley | 8,195 | -7,888 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,539 | 9,484 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 640 | 14.75 | 340 S |
| 8.625 | 5,518 | 10.625 | 1,315 S |
| 5.5 | 9,586 | 7.875 | 1,135 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 | Aug 11, 2008 | Jul 10, 2008 | Yes |
| 00 | Aug 4, 2008 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received May 27, 2011. 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 Pettit, Travis Peak, Cotton Valley | TIFF | 5,518 to 9,588 | May 27, 2011run May 16, 2008 | 0.70 |
"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 42-365-37043 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-365-37043 → 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/36537043, documented in the API reference.