LEASES · O-1-1108 · OIL · DISTRICT 01
Tiller, W. J.
ReportingTexas Petroleum Investment Co. · Caldwell County · Luling-Branyon field
Tiller, W. J. is an RRC oil lease (O-1-1108) in Caldwell County operated by Texas Petroleum Investment CO., with 11 wells completed on it.
It has reported 187K barrels of oil and 48 mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 7.02K barrels of oil, up 6% on the year before; the lease peaked at 1.41K barrels in January 1993.
6 operators have filed production on it, most recently Texas Petroleum Investment CO. since October 2006.
- 187K
- bbl oil, all reported
- 48
- mcf gas incl. casinghead
- 7.02K
- bbl oil, last 12 reported
- +6%
- vs the 12 before
- 11
- wells completed on it
- 1.41K
- peak month, bbl (Jan 1993)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME APR 2026 · STATEWIDE DATA THROUGH APR 2026
Oil by month
Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.
Last 12 months 7,015 · prior 12 6,607(+6%)
Gas by month
Gas-well gas plus casinghead gas, mcf. On an oil lease all gas is reported as casinghead. The latest months are revised upward as late reports arrive.
Last 12 months 0 · prior 12 0
Decline curve
A MODEL FITTED TO THE REPORTS, NOT A REPORT
An Arps exponential curve fitted to the 78 reporting months of oil since the peak in Nov 2019. The dashed line below is that curve, drawn over the months it was fitted to and then 24 months past the last report; where it parts from the columns is where the model stops describing the lease. It describes the trend of past reports. It does not know about recompletions, shut-ins, or new wells, and it is shown only when the lease reported within the last year and the curve explains most of the history.
- 11%
- first-year decline from the peak (nominal Di 12%)
- 0.0
- b factor (exponential)
- 0.76
- fit R²
- 51.4K
- bbl remaining on the curve, to 1 per month
Oil, barrels reported months since the peak, with the fitted curve and its projection
Last 12 months 7,015 · prior 12 6,607(+6%)
Fitted exponential curve from the Nov 2019 peak, dashed 24 months past the last report
| Projected month | Oct 2026 | Apr 2027 | Oct 2027 | Apr 2028 |
|---|---|---|---|---|
| On the curve, bbl per month | 476 | 449 | 423 | 399 |
Quoting a projected figure as if it were reported would be wrong; the reported figures are the ones in the charts and the table view. How production is reported →
Who reported it
Each run of months one operator filed the production report, oldest first.
- Meridian Oil Production Inc.Jan 1993 → Feb 1996 · 38 mo
- Meridian Oil Inc.Mar 1996 → Jul 1996 · 5 mo
- Burlington Resources Oil&gas Co.Aug 1996 → Mar 1997 · 8 mo
- Vintage Petroleum, Inc.Apr 1997 → Apr 2006 · 109 mo
- Vintage Petroleum, LLCMay 2006 → Sep 2006 · 5 mo
- Texas Petroleum Investment Co.Oct 2006 → Jul 2026 · 238 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
11
wells completed on the lease
- Shut IN
- 3
- Plugged
- 3
- NO Type on File
- 2
- Producing
- 2
- Injection
- 1
Operates them now
About this data
Monthly oil, gas, and casinghead from the RRC PDQ production dump, which lags the reporting month by two to three months; figures shown through Apr 2026. Wells from completion reports; operator runs from who filed each month's report.
Developers: this page as JSON is GET /v1/data/leases/tx/o-1-1108, documented in the API reference.