SIMPSON
Lease 1001139101 · Harper County, Kansas · NWNWSE Sec 4 T32S R9W · DOR 127443
Oil1987–1989
Operator
GRAVES DRILLING
Cumulative (state figure)
2,261 bbl
First production
1987
Last production
1989
Location (PLSS)
NWNWSE Sec 4 T32S R9W
Monthly oil production
14 months filed with the Kansas Geological Survey, Nov 1987 to Aug 1989. Volumes are bbl at lease level — a lease can cover many wells, so this is not a well's output.
Total over the months shown
2,261 bbl
Months filed
14
Most wells in a month
1
| Month | Oil (bbl) | Wells |
|---|---|---|
| Aug 1989 | 159 | 1 |
| Jun 1989 | 160 | 1 |
| Apr 1989 | 153 | 1 |
| Mar 1989 | 164 | 1 |
| Jan 1989 | 165 | 1 |
| Nov 1988 | 161 | 1 |
| Oct 1988 | 165 | 1 |
| Sep 1988 | 160 | 1 |
| Jul 1988 | 164 | 1 |
| May 1988 | 161 | 1 |
| Apr 1988 | 164 | 1 |
| Mar 1988 | 161 | 1 |
| Feb 1988 | 164 | 1 |
| Nov 1987 | 160 | 1 |
Lease-level volumes as filed with the Kansas Geological Survey. A blank well count is a month the state filed no count for, not a month with no wells.
Wells on this lease
The state’s well register assigns no well to this lease. 23,174 of 98,639 Kansas leases are in that position — a lease is a production unit, and the register does not always name the holes under it.
Location
37.288737, -98.302114 · NWNWSE Sec 4 T32S R9W
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001139101. The state’s own record.