UNDERWOOD (B)
Lease 1001109138 · Greenwood County, Kansas · SW Sec 34 T22S R10E · DOR 102214
Oil1966–1998
Operator
Berentz Drilling Co., Inc.
Cumulative (state figure)
89,913.11 bbl
First production
1966
Last production
1998
Location (PLSS)
SW Sec 34 T22S R10E
Monthly oil production
81 months filed with the Kansas Geological Survey, Mar 1980 to May 1998. 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
19,760.10 bbl
Months filed
81
Most wells in a month
3
This lease was producing before 1980, and the series begins in January 1980. The total above covers the months shown, not the life of the lease; the state's own cumulative is 89,913.11 bbl.
| Month | Oil (bbl) | Wells |
|---|---|---|
| May 1998 | 161.53 | 3 |
| Mar 1998 | 185.73 | 3 |
| Jan 1998 | 163.85 | 3 |
| Jul 1992 | 213.00 | 3 |
| Mar 1992 | 172.00 | 3 |
| Feb 1992 | 220.00 | 3 |
| Dec 1991 | 219.00 | 3 |
| Oct 1991 | 158.00 | 3 |
| Aug 1991 | 200.00 | 3 |
| Jun 1991 | 216.00 | 3 |
| Apr 1991 | 167.00 | 3 |
| Mar 1991 | 212.00 | 3 |
| Jan 1991 | 183.00 | 3 |
| Nov 1990 | 220.00 | 3 |
| Aug 1990 | 205.00 | 3 |
| Jun 1990 | 216.00 | 3 |
| Apr 1990 | 216.00 | 3 |
| Mar 1990 | 223.00 | 3 |
| Jan 1990 | 219.00 | 3 |
| Nov 1989 | 222.00 | 3 |
| Oct 1989 | 219.00 | 3 |
| Sep 1989 | 223.00 | 3 |
| Aug 1989 | 213.00 | 3 |
| Jul 1989 | 215.00 | 3 |
| Jun 1989 | 441.00 | 3 |
| May 1989 | 224.00 | 3 |
| Apr 1989 | 172.00 | 3 |
| Mar 1989 | 211.00 | 3 |
| Feb 1989 | 448.00 | 3 |
| Jan 1989 | 220.00 | 3 |
| Dec 1988 | 381.00 | 3 |
| Nov 1988 | 220.00 | 3 |
| Oct 1988 | 404.00 | 3 |
| Sep 1988 | 223.00 | 3 |
| Aug 1988 | 437.00 | 3 |
| Jul 1988 | 221.00 | 3 |
| Jun 1988 | 218.00 | 3 |
| May 1988 | 426.00 | 3 |
| Apr 1988 | 223.00 | 3 |
| Mar 1988 | 431.00 | 3 |
| Feb 1988 | 227.00 | 3 |
| Jan 1988 | 222.00 | 3 |
| Dec 1987 | 445.00 | 3 |
| Nov 1987 | 225.00 | 3 |
| Oct 1987 | 216.00 | 3 |
| Sep 1987 | 186.00 | 3 |
| Aug 1987 | 423.00 | 3 |
| Jul 1987 | 171.00 | 3 |
| Jun 1987 | 433.00 | 3 |
| May 1987 | 179.00 | 3 |
| Apr 1987 | 189.00 | 3 |
| Mar 1987 | 436.00 | 3 |
| Feb 1987 | 223.00 | 3 |
| Jan 1987 | 222.00 | 3 |
| Aug 1986 | 218.00 | 3 |
| Apr 1986 | 219.00 | 3 |
| Feb 1986 | 202.00 | 3 |
| Dec 1985 | 214.00 | 3 |
| Sep 1985 | 218.00 | 3 |
| Jul 1985 | 217.00 | 3 |
| May 1985 | 219.00 | 3 |
| Feb 1985 | 217.00 | 3 |
| Nov 1984 | 219.00 | 3 |
| Sep 1984 | 218.00 | 3 |
| Jun 1984 | 220.00 | 3 |
| Apr 1984 | 221.00 | 3 |
| Feb 1984 | 224.00 | 3 |
| Nov 1983 | 162.00 | 3 |
| Oct 1983 | 218.00 | 3 |
| Aug 1983 | 431.00 | 3 |
| Jul 1983 | 219.00 | 3 |
| Jun 1983 | 204.00 | 3 |
| Feb 1983 | 429.00 | 3 |
| Jul 1982 | 219.00 | 3 |
| Apr 1982 | 224.00 | 3 |
| Aug 1981 | 201.00 | 3 |
| Feb 1981 | 222.00 | 3 |
| Nov 1980 | 220.00 | 3 |
| Aug 1980 | 188.00 | 3 |
| May 1980 | 218.00 | 3 |
| Mar 1980 | 220.00 | 3 |
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
38.089520, -96.298863 · SW Sec 34 T22S R10E
Kansas Geological Survey data, corpus built 2026-09-07. Lease 1001109138. The state’s own record.