TEXAS · WELLS · ROBERTSON COUNTY · KING, MARY GAS UNIT LEASE · API 42-395-31312 · DISTRICT 05
King Mary Gas Unit #1
Robertson County · Bald Prairie (CV Consolidated) field · Producing · Vertical
King Mary Gas Unit #1 (API 42-395-31312) is a well in Robertson County operated by Hilcorp Energy Company, completed November 9, 2007 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 26, 2007, permitted to 14,331 ft.
It was permitted by Xto Energy Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 6 formation tops, including Pettit, Travis Peak, Uca A Sd, Knowles.
Its lease has reported 61 barrels of oil and 743K mcf of gas since November 2007, last reporting volume in August 2026.
Operator of record
Permitted by XTO Energy Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)RRC P-5 file of Oct 22, 2026
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,460
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Aug 2026 |
| Latest permit | XTO Energy Inc.Jul 26, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,331
- total depth, ft
- 1
- permits on file
- Jul 26, 2007
- last permit issued
- Nov 9, 2007
- completed
- 61
- cumulative oil, bbl
- 743K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · NOV 2007 THROUGH AUG 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 9, 2007
- 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 |
|---|---|---|---|---|---|---|
| King, Mary Gas Unit G-5-233239 | Bald Prairie (CV Consolidated) | Hilcorp Energy Company | 1 | 61 | 743K | Nov 2007 – Aug 2026 |
Gas, mcf lease total
Last 12 months 16,470 · prior 12 15,626(+5%)
Wells named King Mary Gas Unit
Hilcorp Energy Company's other wells filed under this lease name in Robertson 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 |
|---|---|---|
| Hilcorp Energy Company | Jan 1, 2024 | today |
| XTO Energy Inc. | Nov 9, 2007 | Jan 1, 2024 |
Reporting production
Every operator that reported production on this well's lease, in order.
- 1XTO Energy Inc.Nov 2007 → Dec 2023
- 2Hilcorp Energy CompanyJan 2024 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 642429-99 | Drill | XTO Energy Inc. | Jul 12, 2007 | Jul 26, 2007 | Aug 25, 2007 | 14,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 9, 2007 | King Mary Gas Unit G-5-233239 | Bald Prairie (CV Consolidated) | Hilcorp Energy Company | Producing | 14,331 |
Formation tops
As filed on W-2/G-1. Subsea from 406 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pettit | 8,400 | -7,994 |
| Travis Peak | 8,711 | -8,305 |
| Uca a SD | 10,733 | -10,327 |
| Knowles | 11,611 | -11,205 |
| Bossier | 12,000 | -11,594 |
| Cotton ValleyCOTTON VALLEY LIME | 13,890 | -13,484 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,718 | 12,034 | Perforated |
| 12,196 | 12,792 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,550 | 12.25 | 535 S |
| 5.5 | 14,331 | 8.75 | 2,225 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 | Mar 13, 2008 | Dec 17, 2007 | Yes |
| 00 | Feb 25, 2008 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 20, 2010. Density, Neutron, Resistivity.
Click a log to get its files from the RRC (free account). It opens in a new tab on the RRC's log search for this well, which lists each file to view or download; the RRC has no address for a single file.
| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Pettit, Travis Peak, Uca A Sd, Knowles, Bossier, Cotton Valley | TIFF | 1,550 to 14,343 | Sep 20, 2010run Sep 21, 2007 | 6.72 |
"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.
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.
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 42-395-31312 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-395-31312 → 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/39531312, documented in the API reference.