TEXAS · WELLS · DENTON COUNTY · HAMMACK, JOHN GU LEASE · API 42-121-33407 · DISTRICT 7C
Hammack John GU #1H
Denton County · Newark East (Barnett Shale) field · Horizontal
Hammack John GU #1H (API 42-121-33407) is a plugged horizontal well in Denton County, plugged July 31, 2014, last operated by Devon Energy Production CO L.P..
The RRC has issued one drilling permit, issued April 21, 2008, permitted to 9,000 ft.
Completion filings report 3 formation tops, including Mrble Falls, Barnett, Forestberg.
Its lease has reported 517K mcf of gas since June 2008, with no volume in the three years through August 2026.
Operator of record
Devon Energy Production Co L.P.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Dec 18, 2025
- Permits on file
- 9,267
- 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 Nov 2013 |
| Latest permit | Devon Energy Production Co, L.P.Apr 21, 2008 |
- 9,000
- total depth, ft
- 1
- permits on file
- Apr 21, 2008
- last permit issued
- Feb 24, 2009
- completed
- 0
- cumulative oil, bbl
- 517K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · FEB 2009 THROUGH NOV 2013
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 24, 2009
- Shut in
- —
- Plugged
- Jul 31, 2014
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 |
|---|---|---|---|---|---|---|
| Hammack, John GU G-13-241431 | Newark, East (Barnett Shale) | Devon Energy Production Co, L.P. | 1 | 0 | 517K | Jun 2008 – Nov 2013 |
No volumes reported on these leases in the last three years.
Wells named Hammack John GU
Devon Energy Production Co L.P.'s other wells filed under this lease name in Denton 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
Operator on the lease's P-4
Each operator named on the P-4 filings for this well's lease (a gas well is its own lease), from the date its filing took effect. The P-4 is filed by lease, so a date before the well was drilled is the lease's.
| Operator | From | To |
|---|---|---|
| Devon Energy Production Co, L.P. | Jun 30, 2008 | today |
Reporting production
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Feb 2009 → Nov 2013
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 659591-99 | Drill | Devon Energy Production Co, L.P. | Apr 14, 2008 | Apr 21, 2008 | Jun 13, 2008 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 24, 2009 | Hammack John GU G-13-241431 | Newark East (Barnett Shale) | Devon Energy Production Co L.P. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 568 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Mrble Falls | 7,023 | -6,455 |
| BarnettUPPER BARNETT SHALE | 7,379 | -6,811 |
| Forestberg | 7,551 | -6,983 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,298 | 8,302 | Perforated |
| 8,783 | 8,787 | Perforated |
| 9,268 | 9,272 | Perforated |
| 9,753 | 9,757 | Perforated |
| 10,215 | 10,219 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,240 | 12.25 | 420 S |
| 5.5 | 10,325 | 8.75 | 1,045 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 | Oct 22, 2009 | Apr 20, 2009 | Yes |
| 00 | Oct 31, 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 42-121-33407 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-121-33407 → 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/12133407, documented in the API reference.