Colorado Interstate Gas Company, L.L.C.

January 20, 2026

Winter Weather Alert

Due to the severe winter weather forecasted to begin early Friday, January 23,Colorado Interstate Gas Company, L.L.C. (CIG) is anticipating an increase in demand on its system which will limit its ability to support interruptible storage service withdrawals, and manage imbalances associated with supply shortfalls.  

Accordingly, effective Timely Cycle, Gas Day January 22 and until further notice, the following actions will be taken: 

1. NNT overrun withdrawal requests will be allocated to zero (0) Dth. Storage customers should adjust flowing supplies to maintain storage withdrawals at or below their Available Daily Withdrawal Quantity (ADWQ).  

2. Interruptible withdrawals for Storage Services IS-1, IS-Y and IS-T will not be available. 

3. Absent other capacity or supply concerns, payback off the system will not be approved; payback onto the system will be accepted. 

4. Pursuant to Section 2 of Rate Schedules SS-1 and SS-HP of the Second Revised Volume No. 1 of CIG's FERC Gas Tariff (Tariff), service under those rate schedules should be utilized only to the extent that quantities delivered are below daily scheduled quantities. 

5. Pursuant to Section 6.2 (k) of the General Terms and Conditions (GT&C) of CIG's Tariff, exemptions from CIG's Confirmation Balancing Exception process for service under Rate Schedule APAL-1 will be suspended. 

CIG expects receipt operators to continuously manage their confirmations on a cycle-to-cycle basis to match actual flow rates.  Non-performance caps may be implemented for the upcoming Gas Day or even for the intra-day cycles for the current Gas Day, based on current pipeline operating conditions. CIG will apply non-performance caps on a shorter time schedule and/or on weekends if operating conditions on the pipeline warrant such action. Delivery point operators taking deliveries from CIG's system should monitor their flow rates to ensure flows do not exceed scheduled quantities.  

To help avoid operational issues related to non-performance, CIG encourages all shippers to actively work with their suppliers and markets to ensure that all parties are aware of the importance of matching their actual flow rates with their confirmed scheduled flow rates. 

Furthermore, draft imbalances at receipt and/or delivery points may necessitate rapid elevation to additional measures, with little or no forewarning, such as the declaration of a Strained Operating Condition (SOC) or other remedies outlined in GT&C Section 11 of the Tariff. 

Weather forecasts related to your relevant areas should be monitored to assist in matching supply nominations to the anticipated demand, considering the actions stated above. 

Pursuant to GT&C Section 3.5 (b & c) of the Tariff, CIG reminds shippers and operators that as the forecasted severe cold weather enters the market area, CIG may temporarily extend the Wobbe range to up to 1,320 for the Valley Line, Derby Lake Point of Delivery, the 24B pipeline and the 9B pipeline. If the Wobbe numbers reach 1,320 for the Valley Line, Derby Lake Point of Delivery and Points of Delivery on the 24B pipeline and the 9B pipeline, and CIG is unable to maintain Wobbe numbers at 1,320, then CIG also may extend the Wobbe range for the Derby Lake Point of Delivery and Points of Delivery on 24B pipeline and the 9B pipeline to up to 1,352.