DOUGLAS -E-

Oil · District 09 · Lease #5070

Operator: WINFREY OIL CO., INC.

Cum Oil

213k BBL

Cum Gas

21 MCF

casinghead

Wells

61

Production

1993-01 — 2026-04

Peak Month

1996-11

Production History

Cum Oil: 212,868 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,057 BBL/mo

Di (annual)

5.7%

b-factor

0.0

EUR

210,869 BBL

R-squared

0.577

type

exponential

Operator History (from monthly production reports)

2015-12 — 2026-07 QUATRO OIL AND GAS, INC. 128 mo
2011-02 — 2015-11 SWANSON, TOMMY OIL COMPANY, INC. 58 mo
2005-11 — 2011-01 PEBA OIL & GAS CO. 63 mo
1993-01 — 2005-10 WINFREY OIL CO., INC. 154 mo

Wells (61)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
75QUATRO OIL AND GAS, INC.12,0002011-06-02
76QUATRO OIL AND GAS, INC.12,0002011-06-02
77QUATRO OIL AND GAS, INC.22,0002011-06-02
74QUATRO OIL AND GAS, INC.12,0002011-05-26
72QUATRO OIL AND GAS, INC.11,9992007-10-09
73QUATRO OIL AND GAS, INC.11,9992007-10-09
E 72QUATRO OIL AND GAS, INC.11,9992007-10-09
E 73QUATRO OIL AND GAS, INC.11,9992007-10-09
71QUATRO OIL AND GAS, INC.11,9992007-09-21
69QUATRO OIL AND GAS, INC.11,9992006-08-02
67QUATRO OIL AND GAS, INC.12,0002003-12-18
65QUATRO OIL AND GAS, INC.12,0002003-12-09
66QUATRO OIL AND GAS, INC.12,0002003-12-09
64QUATRO OIL AND GAS, INC.12,0001997-12-08
62QUATRO OIL AND GAS, INC.12,0001997-09-23
60QUATRO OIL AND GAS, INC.12,0001996-12-23
61QUATRO OIL AND GAS, INC.12,0001996-12-18
58QUATRO OIL AND GAS, INC.12,0001996-10-09
59QUATRO OIL AND GAS, INC.12,0001996-10-09
57QUATRO OIL AND GAS, INC.12,0001996-04-22
3QUATRO OIL AND GAS, INC.19521995-11-27
52QUATRO OIL AND GAS, INC.11,0001983-12-30
53QUATRO OIL AND GAS, INC.11,0001983-12-30
54QUATRO OIL AND GAS, INC.11,0001983-12-30
55QUATRO OIL AND GAS, INC.11,0001983-12-30
51QUATRO OIL AND GAS, INC.12,0001983-12-05
46QUATRO OIL AND GAS, INC.19501983-09-26
47QUATRO OIL AND GAS, INC.19501983-09-26
48QUATRO OIL AND GAS, INC.19501983-09-26
49QUATRO OIL AND GAS, INC.19501983-09-26
43QUATRO OIL AND GAS, INC.15001977-10-17
142-485-81334QUATRO OIL AND GAS, INC.------
1042-485-81338QUATRO OIL AND GAS, INC.------
10 B42-485-81339QUATRO OIL AND GAS, INC.------
1342-485-81340QUATRO OIL AND GAS, INC.------
1442-485-81341QUATRO OIL AND GAS, INC.------
1542-485-81342QUATRO OIL AND GAS, INC.------
1842-485-81343QUATRO OIL AND GAS, INC.------
242-485-32962QUATRO OIL AND GAS, INC.------
2042-485-81344QUATRO OIL AND GAS, INC.------
2142-485-81345QUATRO OIL AND GAS, INC.------
2342-485-81346QUATRO OIL AND GAS, INC.------
2442-485-81347QUATRO OIL AND GAS, INC.------
2542-485-81348QUATRO OIL AND GAS, INC.------
2642-485-81349QUATRO OIL AND GAS, INC.------
2742-485-81350QUATRO OIL AND GAS, INC.------
2842-485-81351QUATRO OIL AND GAS, INC.------
3042-485-81352QUATRO OIL AND GAS, INC.------
3142-485-81353QUATRO OIL AND GAS, INC.------
3242-485-81354QUATRO OIL AND GAS, INC.------
3342-485-81355QUATRO OIL AND GAS, INC.------
3542-485-81356QUATRO OIL AND GAS, INC.------
3642-485-32789QUATRO OIL AND GAS, INC.------
3742-485-81357QUATRO OIL AND GAS, INC.------
3842-485-33281QUATRO OIL AND GAS, INC.------
3942-485-33386QUATRO OIL AND GAS, INC.------
4042-485-33387QUATRO OIL AND GAS, INC.------
4142-485-33637QUATRO OIL AND GAS, INC.------
842-485-81336QUATRO OIL AND GAS, INC.------
942-485-81337QUATRO OIL AND GAS, INC.------
B 642-485-81358QUATRO OIL AND GAS, INC.------