YOAST

Oil // district 1 // lease#3624

op: HELLUMS, HAROLD

fields: YOAST

cum_oil

11k BBL

cum_gas

0 MCF

wells

7

production

1993-01 — 2008-03

peak_month

1993-03

-- production_history

cum_oil: 10,586 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

342 BBL/mo

Di (annual)

46.2%

b-factor

0.0

EUR

8,869 BBL

R-squared

0.743

type

exponential

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10HELLUMS, HAROLD31,6002011-10-19
11HELLUMS, HAROLD31,6002011-10-19
7CIBOLO ENERGY OPERATING, INC.21,4692011-10-19
5CIBOLO ENERGY OPERATING, INC.11,6302008-09-24
2CIBOLO ENERGY OPERATING, INC.21,5772008-04-25
9HELLUMS, HAROLD21,6252008-04-25
1HELLUMS, HAROLD11,5501979-07-03
EOF // data source: Texas Railroad Commission // 2026