General Information

Injection:

Injection season starts approximately May 1 to Oct 31

During the start of the injection season, the average injection volume is 300 MMcf

Formula for injection allocation = (X/Y) * Z

X = Firm Shipper’s annual working gas
Y = Sum of annual working gas of all firm shippers
Z = Available injection capacity on any day

Withdrawal:

Withdrawal season starts approximately Nov 1 to Mar 31

During the start of the withdrawal season, the average volume is 500 MMcf

The actual withdrawal rate varies with the working gas volume and the takeaway pipeline pressures

Formula for withdrawal allocation = [(A/B) * (C - D)] + E

A = Firm Shipper’s working gas remaining in storage
B = Total working gas remaining in storage for all shippers
C = Maximum possible reservoir deliverability
D = Sum of firm shipper’s minimum required deliverability
E = Firm shipper’s minimum required deliverability

Interruptible Rates

Reservation (Maximum)

Monthly Deliverability: $2.85338
Monthly Capacity: $0.02378

Usage Charges (Maximum)

Injection: $0.01049
Withdrawal: $0.01781

• Fuel is reimbursed in kind and calculated using utility and Compressor/Dehydration calculations
• Clay Basin Conditioning Reimbursement Factor
• Shippers arrange separately for transportation services to/from Clay Basin

Service Opportunities

• Firm Storage
• Interruptible Storage
• Capacity Release
• Release of Injection/Withdrawal Rights
• In-place Transfers
• Park and Loan Service

Stipulation Agreement

Refer to the MWP Tariff for information regarding:

• Background Information
  • Issues and Negotiated Solutions
• Cost of Service
  • Liquids Revenue & Conditioning
  • When Liquid Revenue is forecast to be below the required annual cost of service amount, MWP collects a Conditioning Reimbursement Factor
• Annual Reimbursement Adjustment