USGS Open-File Report 03-040

Table 1. Probability distribution of volumetric parameters for oil or gas in the Beaufortian Cretaceous Topset North Play.

Attribute	Units	LTP*	F₅₀	F₀₅	Max
Net Reservoir Thickness	feet	15	20	30	100
Area of Closure	1000 acres	4	5	10	50
Trap Fill	percent	50	75	99	100
Porosity	percent	15	18	20	22
Porosity-Water Saturation Product	percent					5
Hydrocarbon Pore Volume	percent	10	13	15	17

		Min	F₅₀	F₀₅	Max
Trap Depth	1000 feet	3	8	9	10
Number of Prospects	number	15	30	45	90
Total Play Area	million acres					7.9

*LTP is lower truncation point for input distribution (see Scheunemeyer, this volume).

Table 2. Probability of occurrence for play and prospect in the Beaufortian Cretaceous Topset North Play.

Play Attributes
Charge (C)	1
Trap (T)	0.9
Timing (F)	1
Play Probability (CxTxF)		0.9

Prospect Attributes
Charge (c)	0.8
Trap (t)	0.2
Timing (f)	1
Prospect Probability (CxTxF)		0.16

Play Probability x Prospect Probability		0.144

Fraction of Accumulations That Are Oil	0.7

Table 3. Oil and gas parameters for the Beaufortian Cretaceous Topset North Play.

Parameter	Units	Value
Oil Recovery Factor	percent	35
Non-Associated Gas Recovery Factor	percent	70
Oil Gravity	API degrees	30
Sulfur Content of Oil	weight percent	1
Gas-Oil Ratio at Median Depth	cubic feet per barrel	759

Table 4. Estimates of undiscovered, technically recoverable hydrocarbons in the Beaufortian Cretaceous Topset North Play in NPRA. All values are rounded to the nearest whole number.

	Mean	Standard Deviation	F₉₅	F₅₀	F₀₅
Oil (mmbo)	103	75	0	95	239

Non-associated Gas (bcf)	405	397	0	307	1,162

Table 5. Probability distribution of volumetric parameters for oil (or gas) in Beaufortian Cretaceous Topset South Play.

Attribute	Units	LTP*	F₅₀	F₀₅	Max
Net Reservoir Thickness	feet	25	50	100	300
Area of Closure	1000 acres	5	8	12	25
Trap Fill	percent	50	75	99	100
Porosity	percent	8	12	16	20
Porosity-Water Saturation Product	percent					5
Hydrocarbon Pore Volume	percent	3	7	11	15

		Min	F₅₀	F₀₅	Max
Trap Depth	1000 feet	10	12	14	20
Number of Prospects	number	15	30	45	90
Total Play Area	million acres					6.8

*LTP is lower truncation point for input distribution (see Scheunemeyer, this volume).

Table 6. Probability of occurrence for play and prospect in the Beaufortian Cretaceous Topset South Play.

Play Attributes
Charge (C)	1.0
Trap (T)	1.0
Timing (F)	1.0
Play Probability (CxTxF)		1.00

Prospect Attributes
Charge (c)	0.9
Trap (t)	0.2
Timing (f)	1
Prospect Probability (CxTxF)		0.18

Play Probability x Prospect Probability		0.18

Fraction of Accumulations That Are Oil	0

Table 7. Oil and gas parameters for the Beaufortian Cretaceous Topset South Play.

Parameter	Units	Value
Oil Recovery Factor	percent
Non-Associated Gas Recovery Factor	percent	70
Oil Gravity	API degrees
Sulfur Content of Oil	weight percent
Gas-Oil Ratio at Median Depth	cubic feet per barrel

Table 8. Estimates of undiscovered, technically recoverable hydrocarbons in the Beaufortian Cretaceous Topset South Play in NPRA. All values are rounded to the nearest whole number.

	Mean	Standard Deviation	F₉₅	F₅₀	F₀₅
Oil (mmbo)	na	na	na	na	na

Non-associated Gas (bcf)	2,130	1,029	635	2,022	4,004

Table 9. Probability distribution of volumetric parameters for oil and gas in Beaufortian Upper Jurassic Topset Northeast Play.

Attribute	Units	LTP*	F₅₀	F₀₅	Max
Net Reservoir Thickness	feet	25	50	75	150
Area of Closure	1000 acres	2	8	25	40
Trap Fill	percent	80	100	100	100
Porosity	percent	12	17	21	22
Porosity-Water Saturation Product	percent					4
Hydrocarbon Pore Volume	percent	8	13	17	18

		Min	F₅₀	F₀₅	Max
Trap Depth	1000 feet	3	9	10	11
Number of Prospects	number	30	60	90	120
Total Play Area	million acres					4.3

*LTP is lower truncation point for input distribution (see Scheunemeyer, this volume).

Table 10. Probability of occurrence for play and prospect in the Beaufortian Upper Jurassic Topset Northeast Play.

Play Attributes
Charge (C)	1.0
Trap (T)	1.0
Timing (F)	1.0
Play Probability (CxTxF)		1.00

Prospect Attributes
Charge (c)	0.7
Trap (t)	0.7
Timing (f)	1
Prospect Probability (CxTxF)		0.49

Play Probability x Prospect Probability		0.49

Fraction of Accumulations That Are Oil	1

Table 11. Oil and gas parameters for the Beaufortian Upper Jurassic Topset Northeast Play.

Parameter	Units	Value
Oil Recovery Factor	percent	50
Non-Associated Gas Recovery Factor	percent
Oil Gravity	API degrees	39
Sulfur Content of Oil	weight percent	0.3
Gas-Oil Ratio at Median Depth	cubic feet per barrel	1178

Table 12. Estimates of undiscovered, technically recoverable hydrocarbons in the Beaufortian Upper Jurassic Topset Northeast Play in NPRA. All values are rounded to the nearest whole number.

	Mean	Standard Deviation	F₉₅	F₅₀	F₀₅
Oil (mmbo)	5,176	1,645	2,744	5,047	8,086

Non-associated Gas (bcf)	na	na	na	na	na

Table 13. Probability distribution of volumetric parameters for oil and gas in Beaufortian Upper Jurassic Topset Southeast Play.

Attribute	Units	LTP*	F₅₀	F₀₅	Max
Net Reservoir Thickness	feet	20	40	75	150
Area of Closure	1000 acres	4	10	25	40
Trap Fill	percent	80	100	100	100
Porosity	percent	10	15	19	20
Porosity-Water Saturation Product	percent					4
Hydrocarbon Pore Volume	percent	6	11	15	16

		Min	F₅₀	F₀₅	Max
Trap Depth	1000 feet	10	13	16	20
Number of Prospects	number	10	18	28	40
Total Play Area	million acres					1.8

*LTP is lower truncation point for input distribution (see Scheunemeyer, this volume).

Table 14. Probability of occurrence for play and prospect in the Beaufortian Upper Jurassic Topset Southeast Play.

Play Attributes
Charge (C)	1.0
Trap (T)	1.0
Timing (F)	1.0
Play Probability (CxTxF)		1.00

Prospect Attributes
Charge (c)	0.9
Trap (t)	0.5
Timing (f)	1
Prospect Probability (CxTxF)		0.45

Play Probability x Prospect Probability		0.45

Fraction of Accumulations That Are Oil	0

Table 15. Oil and gas parameters for the Beaufortian Upper Jurassic Topset Southeast Play.

Parameter	Units	Value
Oil Recovery Factor	percent
Non-Associated Gas Recovery Factor	percent	65
Oil Gravity	API degrees
Sulfur Content of Oil	weight percent
Gas-Oil Ratio at Median Depth	cubic feet per barrel

Table 16. Estimates of undiscovered, technically recoverable hydrocarbons in the Beaufortian Upper Jurassic Topset Southeast Play in NPRA. All values are rounded to the nearest whole number.

	Mean	Standard Deviation	F₉₅	F₅₀	F₀₅
Oil (mmbo)	na	na	na	na	na

Non-associated Gas (bcf)	5,137	2,148	2,053	4,888	9,030

Table 17. Probability distribution of volumetric parameters for oil and gas in Beaufortian Upper Jurassic Topset Northwest Play.

Attribute	Units	LTP*	F₅₀	F₀₅	Max
Net Reservoir Thickness	feet	25	50	75	150
Area of Closure	1000 acres	2	8	25	40
Trap Fill	percent	80	100	100	100
Porosity	percent	12	17	21	22
Porosity-Water Saturation Product	percent					4
Hydrocarbon Pore Volume	percent	8	13	17	18

		Min	F₅₀	F₀₅	Max
Trap Depth	1000 feet	3	9	10	11
Number of Prospects	number	15	30	45	60
Total Play Area	million acres					2.3

*LTP is lower truncation point for input distribution (see Scheunemeyer, this volume).

Table 18. Probability of occurrence for play and prospect in the Beaufortian Upper Jurassic Topset Northwest Play.

Play Attributes
Charge (C)	1.0
Trap (T)	1.0
Timing (F)	1.0
Play Probability (CxTxF)		1.00

Prospect Attributes
Charge (c)	0.5
Trap (t)	0.7
Timing (f)	1
Prospect Probability (CxTxF)		0.35

Play Probability x Prospect Probability		0.35

Fraction of Accumulations That Are Oil	1

Table 19. Oil and gas parameters for the Beaufortian Upper Jurassic Topset Northwest Play.

Parameter	Units	Value
Oil Recovery Factor	percent	50
Non-Associated Gas Recovery Factor	percent
Oil Gravity	API degrees	39
Sulfur Content of Oil	weight percent	0.3
Gas-Oil Ratio at Median Depth	cubic feet per barrel	1178

Table 20. Estimates of undiscovered, technically recoverable hydrocarbons in the Beaufortian Upper Jurassic Topset Northwest Play in NPRA. All values are rounded to the nearest whole number.

	Mean	Standard Deviation	F₉₅	F₅₀	F₀₅
Oil (mmbo)	1,859	787	733	1,770	3,312

Non-associated Gas (bcf)	na	na	na	na	na

Table 21. Probability distribution of volumetric parameters for oil and gas in Beaufortian Upper Jurassic Topset Southwest Play.

Attribute	Units	LTP*	F₅₀	F₀₅	Max
Net Reservoir Thickness	feet	20	40	75	150
Area of Closure	1000 acres	4	10	25	40
Trap Fill	percent	80	100	100	100
Porosity	percent	10	15	19	20
Porosity-Water Saturation Product	percent					4
Hydrocarbon Pore Volume	percent	6	11	15	16

		Min	F₅₀	F₀₅	Max
Trap Depth	1000 feet	10	13	16	20
Number of Prospects	number	18	33	50	75
Total Play Area	million acres					3.3

*LTP is lower truncation point for input distribution (see Scheunemeyer, this volume).

Table 22. Probability of occurrence for play and prospect in the Beaufortian Upper Jurassic Topset Southwest Play.

Play Attributes
Charge (C)	1.0
Trap (T)	1.0
Timing (F)	1.0
Play Probability (CxTxF)		1.00

Prospect Attributes
Charge (c)	0.5
Trap (t)	0.5
Timing (f)	1
Prospect Probability (CxTxF)		0.25

Play Probability x Prospect Probability		0.25

Fraction of Accumulations That Are Oil	0

Table 23. Oil and gas parameters for the Beaufortian Upper Jurassic Topset Southwest Play.

Parameter	Units	Value
Oil Recovery Factor	percent
Non-Associated Gas Recovery Factor	percent	65
Oil Gravity	API degrees
Sulfur Content of Oil	weight percent
Gas-Oil Ratio at Median Depth	cubic feet per barrel

Table 24. Estimates of undiscovered, technically recoverable hydrocarbons in the Beaufortian Upper Jurassic Topset Southwest Play in NPRA. All values are rounded to the nearest whole number.

	Mean	Standard Deviation	F₉₅	F₅₀	F₀₅
Oil (mmbo)	na	na	na	na	na

Non-associated Gas (bcf)	5,220	2,261	2008	4,970	9,265

Table 25. Probability distribution of volumetric parameters for oil or gas in the Beaufortian Lower Jurassic Topset Play.

Attribute	Units	LTP*	F₅₀	F₀₅	Max
Net Reservoir Thickness	feet	15	30	60	100
Area of Closure	1000 acres	3	4	8	20
Trap Fill	percent	50	75	99	100
Porosity	percent	15	18	20	22
Porosity-Water Saturation Product	percent					8
Hydrocarbon Pore Volume	percent	7	10	12	14

		Min	F₅₀	F₀₅	Max
Trap Depth (oil)	1000 feet	3	5	8	14
Trap Depth (gas)		3	8	13	17
Number of Prospects	number	15	40	65	90
Total Play Area	million acres					9.3

*LTP is lower truncation point for input distribution (see Scheunemeyer, this volume).

Table 26. Probability of occurrence for play and prospect in the Beaufortian Lower Jurassic Topset Play.

Play Attributes
Charge (C)	1
Trap (T)	0.9
Timing (F)	1
Play Probability (CxTxF)		0.9

Prospect Attributes
Charge (c)	0.7
Trap (t)	0.2
Timing (f)	1
Prospect Probability (CxTxF)		0.14

Play Probability x Prospect Probability		0.126

Fraction of Accumulations That Are Oil	0.5

Table 27. Oil and gas parameters for the Beaufortian Lower Jurassic Topset Play.

Parameter	Units	Value
Oil Recovery Factor	percent	30
Non-Associated Gas Recovery Factor	percent	65
Oil Gravity	API degrees	30
Sulfur Content of Oil	weight percent	1
Gas-Oil Ratio at Median Depth	cubic feet per barrel	472

Table 28. Estimates of undiscovered, technically recoverable hydrocarbons in the Beaufortian Lower Jurassic Topset Play in NPRA. All values are rounded to the nearest whole number.

	Mean	Standard Deviation	F₉₅	F₅₀	F₀₅
Oil (mmbo)	83	68	0	73	210

Non-associated Gas (bcf)	793	612	0	704	1,915

Table 29. Probability distribution of volumetric parameters for oil or gas in the Beaufortian Clinoform Play.

Attribute	Units	LTP*	F₅₀	F₀₅	Max
Net Reservoir Thickness	feet	15	40	70	150
Area of Closure	1000 acres	5	10	15	25
Trap Fill	percent	50	75	99	100
Porosity	percent	8	13	17	19
Porosity-Water Saturation Product	percent					5
Hydrocarbon Pore Volume	percent	3	8	12	14

		Min	F₅₀	F₀₅	Max
Trap Depth (oil)	1000 feet	8	9	10	12
Trap Depth (gas)		8	12	16	18
Number of Prospects	number	10	25	50	75
Total Play Area	million acres					7.9

*LTP is lower truncation point for input distribution (see Scheunemeyer, this volume).

Table 30. Probability of occurrence for play and prospect in the Beaufortian Clinoform Play.

Play Attributes
Charge (C)	1
Trap (T)	0.9
Timing (F)	1
Play Probability (CxTxF)		0.9

Prospect Attributes
Charge (c)	1.0
Trap (t)	0.1
Timing (f)	1
Prospect Probability (CxTxF)		0.10

Play Probability x Prospect Probability		0.09

Fraction of Accumulations That Are Oil	0.1

Parameter	Units	Value
Oil Recovery Factor	percent	35
Non-Associated Gas Recovery Factor	percent	65
Oil Gravity	API degrees	39
Sulfur Content of Oil	weight percent	0.3
Gas-Oil Ratio at Median Depth	cubic feet per barrel	1178

Table 32. Estimates of undiscovered, technically recoverable hydrocarbons in the Beaufortian Clinoform Play in NPRA. All values are rounded to the nearest whole number.

	Mean	Standard Deviation	F₉₅	F₅₀	F₀₅
Oil (mmbo)	12	28	0	0	71

Non-associated Gas (bcf)	822	719	0	686	2,180