TEXAS · WELLS · MCMULLEN COUNTY · MORRILL RANCH LEASE · API 42-311-36582 · DISTRICT 01
Morrill Ranch #18H
McMullen County · Eagleville (Eagle Ford-1) field · Producing · Horizontal
Morrill Ranch #18H (API 42-311-36582) is a horizontal well in Mcmullen County operated by Javelin Energy Partners Mgmt LLC, completed June 28, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 19, 2015, permitted to 10,587 ft.
It was permitted by Carrizo (Eagle Ford) LLC and has since transferred to Javelin Energy Partners Mgmt LLC on the wellbore schedule.
Completion filings report 11 formation tops, including Midway, Escondido, Olmos, Austin Chalk.
Its lease has reported 1.41M barrels of oil and 1.38M mcf of gas since January 2016, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Javelin Energy Partners Mgmt LLC
Permitted by Carrizo (Eagle Ford) LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 24, 2026
- Permits on file
- 233
- Phone
- (469) 575-3800
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Javelin Energy Partners Mgmt LLC |
| Production reports | Javelin Energy Partners Mgmt LLCthrough Mar 2026 |
| Latest permit | Carrizo (Eagle Ford) LLCOct 19, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,587
- total depth, ft
- 1
- permits on file
- Oct 19, 2015
- last permit issued
- Jun 28, 2016
- completed
- 1.41M
- cumulative oil, bbl
- 1.38M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2016 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 28, 2016
- 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 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Morrill Ranch O-1-18761 | Eagleville (Eagle Ford-1) | Javelin Energy Partners Mgmt LLC | 6 | 1.41M | 1.38M | Jan 2016 – Jul 2026 |
Oil, barrels lease total
Last 12 months 45,431 · prior 12 78,861(-42%)
Gas, mcf lease total
Last 12 months 55,661 · prior 12 111,947(-50%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Carrizo (Eagle Ford) LLCJul 2016 → Jan 2020
- 2Callon (Eagle Ford) LLCFeb 2020 → Jun 2023
- 3Ridgemar Energy Operating, LLCJul 2023 → Jan 2025
- 4Javelin Energy Partners Mgmt LLCFeb 2025 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 811336-99 | Drill | Carrizo (Eagle Ford) LLC | Oct 19, 2015 | Oct 19, 2015 | Mar 25, 2016 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 28, 2016 | Morrill Ranch O-1-18761 | Eagleville (Eagle Ford-1) | Javelin Energy Partners Mgmt LLC | Producing | 10,587 |
Formation tops
As filed on W-2/G-1. Subsea from 356 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,844 | 17,762 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,856 | 13.5 | 1,832 S |
| 5.5 | 18,086 | 8.5 | 2,165 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Sep 12, 2016 | Aug 30, 2016 | — |
| 00 | May 17, 2016 | Apr 14, 2016 | Yes |
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 42-311-36582 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-36582 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
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/31136582, documented in the API reference.