COLLINGS, H. S.

Oil // district 10 // lease#39576

op: COG OPERATING LLC

cum_oil

317k BBL

cum_gas

0 MCF

wells

7

production

2009-04 — 2026-03

peak_month

2012-05

-- production_history

cum_oil: 317,477 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

8,417 BBL/mo

Di (annual)

35.3%

b-factor

0.0

EUR

286,271 BBL

R-squared

0.747

type

exponential

-- wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8COG OPERATING LLC112,0002012-08-14
9COG OPERATING LLC112,0002011-10-25
6COG OPERATING LLC112,0002011-09-15
5COG OPERATING LLC112,0002010-12-07
2MOBIL PRODUCING TX. & N.M. INC.410,5402008-10-09
4MOBIL PRODUCING TX. & N.M. INC.19,7001992-01-23
3MOBIL PRODUCING TX. & N.M. INC.210,5201990-07-02
EOF // data source: Texas Railroad Commission // 2026