(public) Oil and gas quick DCF method

	A	B	C	D	E	F	G	H	I
1		Decline Rate		15%
2		Variable opex as % of revenue		25%
3		Fixed opex as % of revenue		10%
4		Discount Rate		8%
5		Abandonment costs		ignored
6		Well life		13	*capped at 50
7
8					NPV / Yr1 cash flow		3.16031766
9
10	Year	Price	Revenue	Variable opex	Fixed opex	Cash flow	Discount Factor	DCF	Years of life
11	0	$40.00	$1,000.00	$250.00	$85.00	$665.00	1	$665.00
12	1	$40.00	$850.00	$212.50	$85.00	$552.50	1	$552.50	0
13	2	$40.00	$722.50	$180.63	$85.00	$456.88	0.92	$420.33	1
14	3	$40.00	$614.13	$153.53	$85.00	$375.59	0.8464	$317.90	2
15	4	$40.00	$522.01	$130.50	$85.00	$306.50	0.778688	$238.67	3
16	5	$40.00	$443.71	$110.93	$85.00	$247.78	0.71639296	$177.51	4
17	6	$40.00	$377.15	$94.29	$85.00	$197.86	0.6590815232	$130.41	5
18	7	$40.00	$320.58	$80.14	$85.00	$155.43	0.6063550013	$94.25	6
19	8	$40.00	$272.49	$68.12	$85.00	$119.37	0.5578466012	$66.59	7
20	9	$40.00	$231.62	$57.90	$85.00	$88.71	0.5132188731	$45.53	8
21	10	$40.00	$196.87	$49.22	$85.00	$62.66	0.4721613633	$29.58	9
22	11	$40.00	$167.34	$41.84	$85.00	$40.51	0.4343884542	$17.60	10
23	12	$40.00	$142.24	$35.56	$85.00	$21.68	0.3996373779	$8.66	11
24	13	$40.00	$120.91	$30.23	$85.00	$5.68	0.3676663877	$2.09	12
25	14	$40.00	$102.77	$25.69	$85.00	$0.00	0.3382530766	$0.00	13
26	15	$40.00	$87.35	$21.84	$85.00	$0.00	0.3111928305	$0.00	14
27	16	$40.00	$74.25	$18.56	$85.00	$0.00	0.2862974041	$0.00	15
28	17	$40.00	$63.11	$15.78	$85.00	$0.00	0.2633936117	$0.00	16
29	18	$40.00	$53.65	$13.41	$85.00	$0.00	0.2423221228	$0.00	17
30	19	$40.00	$45.60	$11.40	$85.00	$0.00	0.222936353	$0.00	18
31	20	$40.00	$38.76	$9.69	$85.00	$0.00	0.2051014447	$0.00	19
32	21	$40.00	$32.95	$8.24	$85.00	$0.00	0.1886933292	$0.00	20
33	22	$40.00	$28.00	$7.00	$85.00	$0.00	0.1735978628	$0.00	21
34	23	$40.00	$23.80	$5.95	$85.00	$0.00	0.1597100338	$0.00	22
35	24	$40.00	$20.23	$5.06	$85.00	$0.00	0.1469332311	$0.00	23
36	25	$40.00	$17.20	$4.30	$85.00	$0.00	0.1351785726	$0.00	24
37	26	$40.00	$14.62	$3.65	$85.00	$0.00	0.1243642868	$0.00	25
38	27	$40.00	$12.43	$3.11	$85.00	$0.00	0.1144151439	$0.00	26
39	28	$40.00	$10.56	$2.64	$85.00	$0.00	0.1052619323	$0.00	27
40	29	$40.00	$8.98	$2.24	$85.00	$0.00	0.09684097776	$0.00	28
41	30	$40.00	$7.63	$1.91	$85.00	$0.00	0.08909369954	$0.00	29
42	31	$40.00	$6.49	$1.62	$85.00	$0.00	0.08196620358	$0.00	30
43	32	$40.00	$5.51	$1.38	$85.00	$0.00	0.07540890729	$0.00	31
44	33	$40.00	$4.69	$1.17	$85.00	$0.00	0.06937619471	$0.00	32
45	34	$40.00	$3.98	$1.00	$85.00	$0.00	0.06382609913	$0.00	33
46	35	$40.00	$3.39	$0.85	$85.00	$0.00	0.0587200112	$0.00	34
47	36	$40.00	$2.88	$0.72	$85.00	$0.00	0.0540224103	$0.00	35
48	37	$40.00	$2.45	$0.61	$85.00	$0.00	0.04970061748	$0.00	36
49	38	$40.00	$2.08	$0.52	$85.00	$0.00	0.04572456808	$0.00	37
50	39	$40.00	$1.77	$0.44	$85.00	$0.00	0.04206660264	$0.00	38
51	40	$40.00	$1.50	$0.38	$85.00	$0.00	0.03870127442	$0.00	39
52	41	$40.00	$1.28	$0.32	$85.00	$0.00	0.03560517247	$0.00	40
53	42	$40.00	$1.09	$0.27	$85.00	$0.00	0.03275675867	$0.00	41
54	43	$40.00	$0.92	$0.23	$85.00	$0.00	0.03013621798	$0.00	42
55	44	$40.00	$0.78	$0.20	$85.00	$0.00	0.02772532054	$0.00	43
56	45	$40.00	$0.67	$0.17	$85.00	$0.00	0.0255072949	$0.00	44
57	46	$40.00	$0.57	$0.14	$85.00	$0.00	0.02346671131	$0.00	45
58	47	$40.00	$0.48	$0.12	$85.00	$0.00	0.0215893744	$0.00	46
59	48	$40.00	$0.41	$0.10	$85.00	$0.00	0.01986222445	$0.00	47
60	49	$40.00	$0.35	$0.09	$85.00	$0.00	0.01827324649	$0.00	48
61	50	$40.00	$0.30	$0.07	$85.00	$0.00	0.01681138677	$0.00	49
63		Total	$5,664.99	$1,416.25		$2,631.15		$2,101.61
64			Cumulative revenue			Cumulative cash flow		NPV
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101