Gas Storage Fields
Field name: Craig ; Operated by Williams Gas Pipeline Central
Located in: Johnson County

Reservoir discovered: 1923 ; Year Activated: 1931 ; Active?: Yes

Storage Type: Depleted Reservoir
Original Contents: Gas ; Original Pressure: 205 (psig); Original reserves: 6076 (mmcf)

Formation Name: Bush City Sand
Storage Lithology: Sandstone
Gross Thickness: 23 (feet)
Trap Type: Structural/Stratigraphic
Formation Depth Maximum: 582 ; Minimum:

Injection or Withdrawl Wells: 60
Observation, Pressure Control Wells: 7
Compressor Horsepower: 1320
Pipe Diameter Maximum: 16 ; Minimum 2

Base Gas Volume: 5200 (mmcf)
Maximum Developed Gas Volume: 700 (mmcf)
Maximum Storage Pressure: 205 (psig)
Maximum Daily Delverability: 45000 (mcf)
Maximum Designed Daily Volume: (mcf)
Annual Cycling Capability:
Undeveloped Capacity: 0 (mmcf)
Comments: Deliverability ties to maximum dependable daily withdrawal at a minimum inventory of base gas level plus one day's withdrawals. Craig storage field is being abandoned.