TEXAS · WELLS · JOHNSON COUNTY · MAHAFFEY, SUE LEASE · API 42-251-31621 · DISTRICT 7C
Mahaffey Sue #6H
Johnson County · Newark East (Barnett Shale) field · Producing · Horizontal
Mahaffey Sue #6H (API 42-251-31621) is a horizontal well in Johnson County operated by Formentera Operations LLC, completed November 19, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 22, 2007, permitted to 6,565 ft.
It was permitted by Devon Energy Production CO, L.P. and has since transferred to Formentera Operations LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Big Saline, Marble Falls, Uper Barnett Shale, Barnett.
Its lease has reported 1 barrels of oil and 2.17M mcf of gas since July 2007, last reporting volume in August 2026.
Operator of record
Permitted by Devon Energy Production Co, L.P.; the EWA schedule now lists a different operator.
- Based in
- Austin, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 11, 2026
- Permits on file
- 94
- Phone
- (512) 514-5779
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Formentera Operations LLC |
| Production reports | Formentera Operations LLCthrough Aug 2026 |
| Latest permit | Devon Energy Production Co, L.P.Mar 22, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,565
- total depth, ft
- 1
- permits on file
- Mar 22, 2007
- last permit issued
- Nov 19, 2019
- completed
- 1
- cumulative oil, bbl
- 2.17M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · JUL 2007 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 19, 2019
- 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 |
|---|---|---|---|---|---|---|
| Mahaffey, Sue G-13-234623 | Newark, East (Barnett Shale) | Formentera Operations LLC | 1 | 1 | 2.17M | Jul 2007 – Aug 2026 |
Gas, mcf lease total
Last 12 months 24,294 · prior 12 19,612(+24%)
Wells named Mahaffey Sue
Formentera Operations LLC's other wells filed under this lease name in Johnson 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.Jul 2007 → Apr 2018
- 2FDL Operating, LLCMay 2018 → May 2020
- 3Javelin Energy Partners Mgmt LLCMay 2022 → Nov 2025
- 4Formentera Operations LLCDec 2025 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 635266-99 | Drill | Devon Energy Production Co, L.P. | Mar 14, 2007 | Mar 22, 2007 | Mar 28, 2007 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 19, 2019 | Mahaffey Sue G-13-234623 | Newark East (Barnett Shale) | Formentera Operations LLC | Producing | 6,565 |
Formation tops
As filed on W-2/G-1. Subsea from 935 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Big Saline | 5,962 | -5,027 |
| Marble FallsLOWER MARBLE FALLS | 6,372 | -5,437 |
| Uper Barnett Shale | 6,433 | -5,498 |
| BarnettUPPER BARNETT SHALE | 6,433 | -5,498 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,745 | 7,347 | Perforated |
| 6,745 | 8,087 | Perforated |
| 7,485 | 8,087 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,195 | 12.25 | 560 S |
| 5.5 | 8,160 | 7.875 | 920 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 | Jan 8, 2021 | Dec 29, 2020 | — |
| 00 | Jan 31, 2009 | Dec 5, 2008 | — |
| 00 | May 12, 2008 | Aug 17, 2007 | Yes |
| 00 | Apr 30, 2008 | — | — |
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 42-251-31621 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-251-31621 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/25131621, documented in the API reference.