TEXAS · WELLS · HOCKLEY COUNTY · MALLET L&C CO. LEASE · API 42-219-36935 · DISTRICT 7B
Mallet L&C Co. #228
Hockley County · Slaughter field · Injection · Vertical
Mallet L&C CO. #228 (API 42-219-36935) is a well in Hockley County operated by Ctoc Energy LLC, completed February 20, 2007 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued August 8, 2006, permitted to 5,199 ft.
It was permitted by Merit Energy Company and has since transferred to Ctoc Energy LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Rustler, Yates, San Andres.
Its lease has reported 405K barrels of oil and 809K mcf of gas since November 2005, last reporting volume in April 2026. The lease carries 37 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 8.99K barrels injected in the 12 months reported through December 2025.
Operator of record
Permitted by Merit Energy Company; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 24, 2026
- Phone
- (817) 334-7804
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ctoc Energy LLC |
| Production reports | Cross Timbers Energy, LLCthrough Apr 2026 |
| Latest permit | Merit Energy CompanyAug 8, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,199
- total depth, ft
- 1
- permits on file
- Aug 8, 2006
- last permit issued
- Feb 20, 2007
- completed
- 405K
- cumulative oil, bbl
- 809K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2005 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 20, 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 lease this well is completed on; they carry 37 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mallet L&C Co. O-11-68851 | Slaughter | Cross Timbers Energy, LLC | 37 | 405K | 809K | Nov 2005 – Apr 2026 |
Oil, barrels lease total
Last 12 months 2,319 · prior 12 4,336(-47%)
Gas, mcf lease total
Last 12 months 3,082 · prior 12 5,426(-43%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Merit Energy CompanyNov 2005 → Dec 2013
- 2Cross Timbers Energy, LLCJan 2014 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 624051-99 | Drill | Merit Energy Company | Aug 8, 2006 | Aug 8, 2006 | Oct 2, 2006 | 5,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 20, 2007 | Mallet L&C Co. O-11-68851 | Slaughter | Ctoc Energy LLC | Injection | 5,199 |
Formation tops
As filed on W-2/G-1. Subsea from 3,551 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rustler | 2,280 | 1,271 |
| Yates | 2,880 | 671 |
| San Andres | 4,212 | -661 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,032 | 5,088 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,130 | 12.25 | 800 S |
| 5.5 | 5,199 | 7.875 | 925 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 | Dec 14, 2007 | Mar 14, 2007 | — |
| 00 | Mar 30, 2007 | Dec 1, 2006 | Yes |
| 00 | Dec 7, 2006 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Apr 23, 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 PorosityTHREE DETECTOR LITHO DENSITY COMPENSATED NEUTRON GAMMA RAYSpans Rustler, Yates, San Andres | TIFF | 200 to 5,199 | Apr 23, 2007run Oct 9, 2006 | — |
| ResistivityHIGH RESOLUTION LETROLOG ARRAY MICRO-CFL GAMMA RAYSpans Yates, San Andres | TIFF | 3,199 to 5,199 | Apr 23, 2007run Oct 9, 2006 | — |
"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 42-219-36935 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-219-36935 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 8.99K
- bbl, last 12 reported months
- 1.11M
- bbl, all reported
- Dec 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000097036 | H-1 Injection | Active | 1,000 | 1,800 | 4,800–5,150 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 8,990 · prior 12 43,120(-79%)
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/21936935, documented in the API reference.