0 ft. 60 ft. 100 ft. 200 ft.

N

S

EW

Heater Treaters/Separators

SPCC Facility Layout & Location Diagram

WPX Energy Williston, LLC

Facility: Buffalo 1-36H PadThree Affiliated Tribes of the Ft. Berthoud Reservation

SE SE Sec. 1 T149N Range 93W

Latitude: 47.74758 Longitude: -102.51729

Dunn County, North Dakota

Surface Drainage

Access Road

Perimeter Earthen Berm/Cut Slope

Pad Size: 2.28 acres

NOTE: Well Pad Location Plat taken from WPX Wellfiles

Well Pad Location Plat

WPX Energy Williston, LLC

Wells: Revised By: BSF

Revision Date: 2014-03-03

PE Review By: DJF

PE Review Date: 2014-03-03

Legend

Wellhead

Perimeter Earthen Berm/Cut Slope

Lined Steel Containment Structure

Building

Containments

Buffalo 1-36HC

Corral 1-36HD

Buffalo 1-36HCWell Head

LACT, Pump House, Meter House

Tanks

2000 ft0 ft

Location of

Buffalo 1-36H Pad

Corral 1-36HDWell Head

Legend

Meter House

Pump House

Flare

Fence

Water Line

Flow Line

Oil Production LineGas Sales Line

Recycle Line

Equalizer Line

Oil Sales Line

Vent Line

Secondary Containment

Wellhead

Perimeter Earthen Dike

PH

MH

Facility Photo

Topo JPG

Facility Location

N

S

EW2000 ft1000 ft0 ft

N

S

EW

Emergency Phone:

(701) 837-2900

0 ft. 6 ft.10 ft. 20 ft.

Note: This unit is subject to the site security plan for the Williston Basin Plan is located at:

WPX Energy Williston, LLC 1801 Burdick Expressway WestMinot, ND 58701

3/3/2014DATE:DRAWN BY: BSF

Seal Chart Recycle Valves

Equalizer Valves

Fill Valves

Tank Sales Valve

LO Sales(2)

Valve

Oil Sales Phase Valve Positions for Sales(1)

OIL

SA

LES

MET

HO

D T

RUCK

Production Line SC

Recycle Line SC

Oil Sales Line O(2)

O

Equalizer Line SC

LACT

Production Line O/C

Recycle Line SC

Oil Sales Line O SC

Equalizer Line O/C

PR

OD

UC

TIO

N Production Phase Valve Positions for Production(1)

Production Line O/C

Recycle Line O/C

Tank Oil Sales O/C SC

Equalizer Line O/C

(1) SC=Sealed Close; C=Closed; O=Open; O/C= Open or Closed; LO=Loadout Drain valves always in SC position (2) All other tank sales valves SC.

HD

Separators

HC

HC1400 bbls

Oil 12' dia

HC5400 bbls

PW 12' dia

HC2400 bbls

Oil 12' dia

HC3400 bbls

Oil 12' dia

HC4400 bbls

Divert 12' dia

HD5400 bbls

PW 12' dia

HD4400 bbls

Oil 12' dia

HD3400 bbls

Oil 12' dia

HD2400 bbls

Oil 12' dia

HD1400 bbls

Divert12' dia

LO

PH

Transfer Pump

Booster Pump

LACT Unit

2" Coriolis CustodyMeter

MH

Divert Line

Gas Sales Line

Water Disposal

Oil Sales Line

Treaters

Gas Relief Line

Tank Vent Line

Pumping Unit

Pumping Unit

Road

Recycle Pump

Surface Drainage

Surface Drainage

Surface Drainage

Containment 1Lined SteelHeight 30"

Containment 2Lined SteelHeight 24"

1" Coriolis VerificationMeter with motor

control valve.

2" Coriolis VerificationMeter with motor

control valve.

Containment 3Well Pad Perimeter

Earthen DikeHeight 12"(Not to Scale)

LO

Corral 1-36HDWellhead

Buffalo 1-36HCWellhead

40.0'

96.0'

10.0' 10.0'

55.0'

50.0'

30.0'

50.0'

WPX Energy SPCC Facility & Site Security

Facility: Buffalo 1-36H PadWell: Buffalo 1-36HC

Three Affiliated Tribes of the Ft. Berthoud Reservation

SE SE Sec. 1 T149N Range 93W

Latitude: 47.74758 Longitude: -102.51729

Dunn County, North Dakota

NDIC 20508

NDM102714

14-20-A04-8685

(7420A48685)

Buffalo 1-36HCNDIC 20508

NDM102714

Legend

Meter House

Pump House

Flare

Fence

Water Line

Flow Line

Oil Production LineGas Sales Line

Recycle Line

Equalizer Line

Oil Sales Line

Vent Line

Secondary Containment

Wellhead

Perimeter Earthen Dike

PH

MH

Facility Photo

Topo JPG

Facility Location

N

S

EW2000 ft1000 ft0 ft

N

S

EW

Emergency Phone:

(701) 837-2900

0 ft. 6 ft.10 ft. 20 ft.

Note: This unit is subject to the site security plan for the Williston Basin Plan is located at:

WPX Energy Williston, LLC 1801 Burdick Expressway WestMinot, ND 58701

3/3/2014DATE:DRAWN BY: BSF

Seal Chart Recycle Valves

Equalizer Valves

Fill Valves

Tank Sales Valve

LO Sales(2)

Valve

Oil Sales Phase Valve Positions for Sales(1)

OIL

SA

LES

MET

HO

D T

RUCK

Production Line SC

Recycle Line SC

Oil Sales Line O(2)

O

Equalizer Line SC

LACT

Production Line O/C

Recycle Line SC

Oil Sales Line O SC

Equalizer Line O/C

PR

OD

UC

TIO

N Production Phase Valve Positions for Production(1)

Production Line O/C

Recycle Line O/C

Tank Oil Sales O/C SC

Equalizer Line O/C

(1) SC=Sealed Close; C=Closed; O=Open; O/C= Open or Closed; LO=Loadout Drain valves always in SC position (2) All other tank sales valves SC.

HD

Separators

HC

HC1400 bbls

Oil 12' dia

HC5400 bbls

PW 12' dia

HC2400 bbls

Oil 12' dia

HC3400 bbls

Oil 12' dia

HC4400 bbls

Divert 12' dia

HD5400 bbls

PW 12' dia

HD4400 bbls

Oil 12' dia

HD3400 bbls

Oil 12' dia

HD2400 bbls

Oil 12' dia

HD1400 bbls

Divert12' dia

Divert Line

LO

PH

Transfer Pump

Booster Pump

LACT Unit

2" Coriolis CustodyMeter

MH

Gas Sales Line

Water Disposal

Oil Sales Line

Treaters

Gas Relief Line

Tank Vent Line

Pumping Unit

Pumping Unit

Road

Recycle Pump

Surface Drainage

Surface Drainage

Surface Drainage

Containment 1Lined SteelHeight 30"

Containment 2Lined SteelHeight 24"

1" Coriolis VerificationMeter with motor

control valve.

2" Coriolis VerificationMeter with motor

control valve.

Containment 3Well Pad Perimeter

Earthen DikeHeight 12"(Not to Scale)

Corral 1-36HDWellhead

Buffalo 1-36HCWellhead

LO

40.0'

96.0'

10.0' 10.0'

55.0'

50.0'

30.0'

50.0'

WPX Energy SPCC Facility & Site Security

Facility: Buffalo 1-36H PadWell: Corral 1-36HD

Three Affiliated Tribes of the Ft. Berthoud Reservation

SE SE Sec. 1 T149N Range 93W

Latitude: 47.74425 Longitude: -102.51729

Dunn County, North Dakota

NDIC 21609

NDM102714

14-20-A04-8685

(7420A48685)

Corral 1-36HDNDIC 21609

NDM102714

R1 = 96' x 50' = 4,800 ft2

R2 = 55' x 30' =1,650 ft2

Containment 1 Irregular Containment Volume Calculations:V1,total = A1 x H1

A1 = R1 + R2 A1 = 4800 ft2 + 1650 ft2 = 6,450 ft2

V1,total = 6450 ft2 x 2.5' = 16,125 ft3

Containment 2 Rectangular Containment Volume Calculations:V2,total = A2 x H2

A2 = R3 = 2,000 ft2

V2,total = 2000 ft2 x 2.0' = 4,000 ft3

Containment 3 Perimeter Earthen Dike Volume Calculations:V3,total = APad x H3

V3,total = 2.28 acres x (43560 ft2/1 acre) x 1'V3,total = 99,316 ft3

Containment 1 Building/Equipment Displacement Calculations:VB2 = LB2 x WB2 x H1 VB2 = 11' x 15' x 2.5' = 412 ft3

VB3 = LB3 x WB3 x H1 VB3 = 10' x 16' x 2.5' = 400 ft3

VB4 = LB4 x WB4 x H1 VB4 = 4' x 6' x 2.5' = 60 ft3

Total Displacement = 412 ft3 + 400 ft3 + 60 ft3 = 872 ft3

Containment 2 Building/Equipment Displacement Calculations:VB1 = LB1 x WB1 x H2

VB1 = 12' x 28' x 2.0' = 672 ft3

Total Displacement = 672 ft3

Containment 3 Displacement Calculations:Total Displacement = (A1 + A2) x H3

Total Displacement = (6450 ft2 + 2000 ft2) x 1' = 8,450 ft3

Precipitation Volume Containment 1:V1,precip = A1 x Hprecip

V1,precip = 6450 ft2 x 0.5' = 3,225 ft3

Precipitation Volume Containment 2:V2,precip = A2 x Hprecip

V2,precip = 2000 ft2 x 0.5' = 1,000 ft3

Precipitation Volume Containment 3:V3,precip = APad x Hprecip

V3,precip = 99316 ft2 x 0.5' = 49,658 ft3

Facility: Buffalo 1-36H Pad

Revised By: BSFRevision Date: 2014-03-03PE Review By: DJFPE Review Date: 2014-03-03

Notes:Precipitation Calculations: Utilized U.S. Dept of Commerce Rainfall Frequency Atlas of the United States 25-yr 24-hr event (inches) = 3.7" plus snowfall estimate = 6" = 0.5 ft = Hprecip

Pad Area: Area of well pad = Apad. Used conservative value for unknown pad areas because all existing pads are greater than 1 acre (43,560 ft2). Exact survey data used when available.

R3 = 40' x 50' = 2,000 ft2

LACTB3 B4

B1 B2

Containment 1Lined SteelHeight 30"

Containment 2Lined SteelHeight 24"

40.0' 96.0'

10.0'

10.0'55.0'

50.0' 30.0'50.0'