TEXAS · WELLS · ZAPATA COUNTY · API 42-505-34800 · DISTRICT 04

Haynes #31

Shut in

Zapata County · Munoz (Lobo) field · SWR-10-Well · Directional

Fields on the latest permit · any of 3: Haynes (Hinnant Cons.) · Haynes (Middle Wilcox Cons.) · Munoz (Lobo); Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.

Haynes #31 (API 42-505-34800) is a well in Zapata County operated by Hilcorp Energy Company, completed March 13, 2004 and listed as swr-10-well on the RRC schedule, shut in April 1, 2024.

The RRC has issued one drilling permit (amended once), issued August 5, 2003, permitted to 14,500 ft.

It was permitted by Devon Energy Production CO, L.P. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Its 2 leases have reported 1.86M mcf of gas since January 2004, last reporting volume in March 2024. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Permitted by Devon Energy Production Co, L.P.; the EWA schedule now lists a different operator.

Based in: Houston, TX
P-5 status: Active – Extension (X)
P-5 last filed: Mar 27, 2026
Permits on file: 3,458
Phone: (713) 209-2400

Create operator alert

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Hilcorp Energy Company
Production reports	Hilcorp Energy Companythrough Mar 2024
Latest permit	Devon Energy Production Co, L.P.Aug 5, 2003

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

14,500: total depth, ft
2: permits on file
Aug 5, 2003: last permit issued
Mar 13, 2004: completed
0: cumulative oil, bbl
1.86M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 2004 THROUGH Mar 2024

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Mar 13, 2004
Shut in: Apr 1, 2024
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Haynes Mineral Trust G-4-203847	Haynes (Middle Wilcox Cons.)	Hilcorp Energy Company	1	0	1.86M	Jan 2004 – Mar 2024
Haynes G-4-203848	Munoz (Lobo)	Hilcorp Energy Company	1	0	0	Mar 2004 – —

Gas, mcf lease total

Last 12 months 0 · prior 12 0

Chain of custody

Every operator that reported production on this well's lease, in order.

1Devon Energy Production Co, L.P.Jan 2004 → Feb 2014
2Linn Operating, Inc.Sep 2014 → Apr 2017
3Linn Operating, LLCMay 2017 → Jul 2017
4Hilcorp Energy CompanyAug 2017 → Mar 2024

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
534969-98	Drill	Devon Energy Production Co, L.P.	Sep 25, 2003	Aug 5, 2003	Nov 22, 2003	15,000
534969-99	Drill	Devon Energy Production Co, L.P.	Aug 5, 2003	Aug 5, 2003	—	15,000

Completions

Completed	Lease	Field	Operator	Status	Depth
Mar 13, 2004	Haynes G-4-203848	Munoz (Lobo)	Hilcorp Energy Company	SWR-10-Well · shut in Mar 1, 2004	14,500
Mar 13, 2004	Haynes Mineral Trust G-4-203847	Haynes (Middle Wilcox Cons.)	Hilcorp Energy Company	Temp Abandoned · shut in Apr 1, 2024	14,500

Perforations

Perforated and open-hole intervals.

From	To	Type
10,429	10,435	Perforated
10,454	10,468	Perforated
10,900	10,930	Perforated
12,774	12,804	Perforated
13,700	13,750	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	790	17.5	675 S
9.875	6,585	12.25	375 S
3.5	14,414	6	585 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 7, 2004	Jul 8, 2004	Yes
00	Oct 22, 2004	—	—

Well logs

1 log loaded from the RRC's log index, the latest received Oct 8, 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
Combination: Resistivity/Neutron Density PorositySLIM XTREME ARRAY INDUCTION GR SLIM XTREME COMP. NEUTRON HOSTILE ENVIRONMENT LITHO DENSITY	TIFF	9,598 to 14,511	Oct 8, 2007run Dec 20, 2003	—

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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 42-505-34800 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-505-34800 → 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/50534800, documented in the API reference.