CHALK, OTIS

Oil // district 10 // lease#41051

op: UNITEX OIL & GAS, L.L.C.

cum_oil

474k BBL

cum_gas

0 MCF

wells

42

production

2011-12 — 2026-03

peak_month

2018-09

-- production_history

cum_oil: 473,707 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,809 BBL/mo

Di (annual)

23.9%

b-factor

2.0

EUR

763,671 BBL

R-squared

0.806

type

hyperbolic

-- wells (42)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
46UNITEX OIL & GAS, L.L.C.15,5002018-04-05
12CHEVRON MIDCONTINENT, L.P.12,3752008-10-17
22RUNION OIL COMPANY OF CALIFORNIA22,4332008-10-17
34RUNION OIL COMPANY OF CALIFORNIA15,2001998-09-17
34WSUNION OIL COMPANY OF CALIFORNIA15,2001998-09-17
21UNION OIL COMPANY OF CALIFORNIA12,6001994-10-18
L 11WRUNION OIL COMPANY OF CALIFORNIA13,2501993-06-25
L 9WRUNION OIL COMPANY OF CALIFORNIA13,2501993-06-25
U 11WRUNION OIL COMPANY OF CALIFORNIA13,2501993-06-25
U 9WRUNION OIL COMPANY OF CALIFORNIA13,2501993-06-25
14WUNION OIL COMPANY OF CALIFORNIA12,4001993-05-24
9WUNION OIL COMPANY OF CALIFORNIA12,4001993-05-24
42UNION OIL COMPANY OF CALIFORNIA13,2001993-01-07
2RUNION OIL COMPANY OF CALIFORNIA13,2001992-09-22
41UNION OIL COMPANY OF CALIFORNIA12,3751992-09-22
43UNION OIL COMPANY OF CALIFORNIA13,2001992-09-22
44UNION OIL COMPANY OF CALIFORNIA13,2001992-09-22
6RUNION OIL COMPANY OF CALIFORNIA13,2001992-09-22
3RUNION OIL COMPANY OF CALIFORNIA13,2001992-08-28
40UNION OIL COMPANY OF CALIFORNIA23,2051992-01-08
5UNION OIL COMPANY OF CALIFORNIA13,1321991-11-26
8UNION OIL COMPANY OF CALIFORNIA13,1791990-12-26
39UNION OIL COMPANY OF CALIFORNIA13,1001984-11-19
142-227-02699--------
13W42-227-02708--------
1642-227-02711--------
1842-227-02713--------
1942-227-02714--------
2042-227-02715--------
2W42-227-30358--------
3342-227-30386--------
3642-227-30589--------
3742-227-30588--------
3842-227-30815--------
442-227-02702--------
4W42-227-30308--------
4WG42-227-30308--------
5W42-227-30309--------
6W42-227-30310--------
6WG42-227-30310--------
742-227-04274--------
7W42-227-30295--------
EOF // data source: Texas Railroad Commission // 2026