TEXAS · WELLS · WASHINGTON COUNTY · API 42-477-30307 · DISTRICT 03
Koplar Robert B. #1RE
Washington County · Giddings (Austin Chalk-3) field · Producing · Horizontal
- Fields on the latest permit · any of 2
- Giddings (Austin Chalk-3) · Giddings (Austin Chalk, Gas)
- 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.
Koplar Robert B. #1RE (API 42-477-30307) is a horizontal well in Washington County operated by Magnolia Oil & Gas Operating LLC, completed June 19, 2004 and listed as producing on the RRC schedule, shut in August 1, 2026.
The RRC has issued 2 drilling permits between 1979 and 2004, permitted to 10,298 ft.
It was permitted by Anadarko E&P Company LP and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.
Completion filings report 5 formation tops, including Midway, Navarro, Taylor, Pecan Gap.
Its 2 leases have reported 138K barrels of oil and 1.35M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Magnolia Oil & Gas Operating LLC
Permitted by Anadarko E&P Company LP; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 6, 2026
- Permits on file
- 617
- Phone
- (713) 842-9050
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Magnolia Oil & Gas Operating LLC |
| Production reports | Magnolia Oil & Gas Operating LLCthrough Apr 2026 |
| Latest permit | Anadarko E&P Company LPMay 3, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,298
- total depth, ft
- 2
- permits on file
- May 3, 2004
- last permit issued
- Jun 19, 2004
- completed
- 138K
- cumulative oil, bbl
- 1.35M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 19, 2004
- Shut in
- Aug 1, 2026
- 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 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 |
|---|---|---|---|---|---|---|
| Koplar, Robert B. G-3-229703 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 1 | 116K | 1.21M | Jun 2004 – Apr 2026 |
| Koplar, Robert B O-3-12355 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | 1 | 22.4K | 142K | Jan 1993 – Mar 2004 |
Gas, mcf lease total
Last 12 months 8,638 · prior 12 11,379(-24%)
Wells named Koplar Robert B.
Magnolia Oil & Gas Operating LLC's other wells filed under this lease name in Washington 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.
- 1CRM Energy, Inc.Jan 1993 → Aug 2000
- 2Texas Vanguard Oil CompanyMay 2001 → Feb 2004
- 3Anadarko E&P Company LPJun 2004 → Jul 2007
- 4Enervest Operating, L.L.C.Aug 2007 → Jul 2018
- 5Magnolia Oil & Gas Operating LLCAug 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 545196-99 | Recompletion | Anadarko E&P Company LP | Apr 30, 2004 | May 3, 2004 | May 10, 2004 | 10,500 |
| 44369-99 | Drill | Humble Exploration Co., Inc. | Mar 15, 1979 | Mar 15, 1979 | Mar 20, 1979 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 19, 2004 | Koplar Robert B. G-3-229703 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Producing · shut in Aug 1, 2026 | 10,298 |
| Jul 5, 1979 | Koplar Robert B O-3-12355 | Giddings (Austin Chalk-3) | Magnolia Oil & Gas Operating LLC | Partial Plug · shut in Oct 1, 2005 | 10,298 |
Formation tops
As filed on W-2/G-1. Subsea from 310 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 6,574 | -6,264 |
| Navarro | 7,227 | -6,917 |
| Taylor | 7,771 | -7,461 |
| Pecan Gap | 8,655 | -8,345 |
| Austin Chalk | 9,348 | -9,038 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,348 | 9,969 | Perforated |
| 9,418 | 13,351 | Perforated |
| 9,425 | 12,600 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,602 | 12.25 | 910 S |
| 2.375 | 8,989 | — | — |
| 7 | 9,243 | 8.75 | 400 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 16, 2007 | Oct 8, 2004 | Yes |
| 00 | Sep 27, 2007 | — | — |
| 00 | Jan 12, 1984 | Jul 16, 1979 | — |
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 42-477-30307 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-477-30307 → 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/47730307, documented in the API reference.