Exhibit A to the Firm Storage Service Agreement between Liberty and
                        ____________________(Customer)
The quantity of Gas Customer may inject pursuant to the Firm Storage Service
Agreement at any time is determined by the following schedule:
Point of Receipt Pressure   PSIG
________________________________________________ Storage
Inventory      800-850     851-900     901+
0-20%
21-40%
41-60%
61-80%
81-100%
The Storage Inventory is expressed as a percentage of Customers MSQ.