BLOCK 31 UNIT

Oil // district 10 // lease#51135

op: OXY USA INC.

cum_oil

552k BBL

cum_gas

0 MCF

wells

28

production

2017-12 — 2026-03

peak_month

2018-11

-- production_history

cum_oil: 552,108 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

16,566 BBL/mo

Di (annual)

54.7%

b-factor

0.5

EUR

677,111 BBL

R-squared

0.961

type

hyperbolic

-- wells (28)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
F 5FOXY USA INC.29,1002024-01-31
G 8OXY USA INC.39,3502023-12-06
H 8OXY USA INC.69,0602019-10-22
L 4OXY USA INC.49,2102019-10-21
P 10 UOXY USA INC.19,0812019-08-26
P 14 UOXY USA INC.29,1002019-07-30
P 8OXY USA INC.39,1002019-06-20
B 3BOXY USA INC.39,0502019-04-05
D 3OXY USA INC.29,0002019-04-05
G 9GOXY USA INC.39,5002019-04-05
N 1NOXY USA INC.29,1002019-04-05
N 5NOXY USA INC.39,0752019-04-05
N 6OXY USA INC.39,1002019-04-05
S 5OXY USA INC.410,4602019-04-05
Z 2OXY USA INC.210,4602019-04-05
2DDOXY USA INC.49,1002019-04-04
F 7FOXY USA INC.39,5002018-05-22
S 9DOXY USA INC.49,1502018-05-22
A 1SOXY USA INC.39,1002018-05-21
A 3SOXY USA INC.39,1402018-05-21
H 7OXY USA INC.39,1002018-05-21
V 4OXY USA INC.39,1002018-05-21
A 4SOXY USA INC.39,1002018-05-18
T 9NOXY USA INC.39,5002018-03-12
F 8FOXY USA INC.49,3802018-03-07
M 5OXY USA INC.39,1002018-03-05
Y 8OXY USA INC.39,1252018-03-05
S 12UOXY USA INC.49,4002017-12-11
EOF // data source: Texas Railroad Commission // 2026