TEXAS · WELLS · JOHNSON COUNTY · MAHAFFEY, SUE LEASE · API 42-251-32681 · DISTRICT 7C
Mahaffey Sue #14H
Johnson County · Newark East (Barnett Shale) field · Producing · Horizontal
Mahaffey Sue #14H (API 42-251-32681) is a horizontal well in Johnson County operated by Formentera Operations LLC, completed July 16, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 27, 2008, permitted to 6,482 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 3 formation tops, including Big Saline, Marble Falls, Barnett.
Its lease has reported 1.58M mcf of gas since July 2008, 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.Feb 27, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,482
- total depth, ft
- 1
- permits on file
- Feb 27, 2008
- last permit issued
- Jul 16, 2008
- completed
- 0
- cumulative oil, bbl
- 1.58M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · JUL 2008 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 16, 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 |
|---|---|---|---|---|---|---|
| Mahaffey, Sue G-13-247556 | Newark, East (Barnett Shale) | Formentera Operations LLC | 1 | 0 | 1.58M | Jul 2008 – Aug 2026 |
Gas, mcf lease total
Last 12 months 28,661 · prior 12 24,515(+17%)
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 2008 → Apr 2018
- 2FDL Operating, LLCMay 2018 → Dec 2021
- 3Venado Operating Company LLCJan 2022 → Mar 2022
- 4Javelin Energy Partners Mgmt LLCApr 2022 → Nov 2025
- 5Formentera Operations LLCDec 2025 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 655431-99 | Drill | Devon Energy Production Co, L.P. | Feb 15, 2008 | Feb 27, 2008 | May 15, 2008 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 16, 2008 | Mahaffey Sue G-13-247556 | Newark East (Barnett Shale) | Formentera Operations LLC | Producing | 6,482 |
Formation tops
As filed on W-2/G-1. Subsea from 920 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Big Saline | 5,942 | -5,022 |
| Marble FallsLOWER MARBLE FALLS | 6,286 | -5,366 |
| BarnettUPPER BARNETT SHALE | 6,375 | -5,455 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,000 | 7,474 | Perforated |
| 7,590 | 8,064 | Perforated |
| 8,180 | 8,654 | Perforated |
| 8,770 | 9,244 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,170 | 12.25 | 390 S |
| 5.5 | 9,321 | 8.5 | 1,590 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 29, 2009 | Sep 26, 2008 | Yes |
| 00 | Jun 2, 2009 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Jun 13, 2011. Cased hole. 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 |
|---|---|---|---|---|
| SURVEYS CASED HOLESpans Big Saline, Marble Falls, Barnett | TIFF | 5,730 to 6,464 | Jun 13, 2011run May 27, 2008 | 0.51 |
"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 42-251-32681 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-251-32681 → 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/25132681, documented in the API reference.