Colorado Interstate Gas Company, L.L.C.
February 3, 2025
Storage Bottom Hole Pressure Surveys
The four Storage Fields utilized by Colorado Interstate Gas Company, L.L.C. (CIG) to provide No Notice Transportation (NNT) and Storage Services will undergo scheduled Bottom Hole Pressure Surveys from March 18 through May 9, 2025. As explained below, this work will impact firm customers' ability to inject during this period by reducing the regular Available Daily Injection Quantity (ADIQ). For informational purposes, CIG has also included an estimate of withdrawal impacts so customers may plan their business accordingly.
The week that maintenance is scheduled for each field is listed below. Each field's maximum injection and withdrawal capability is shown as well as the field's related percentage of total injections/withdrawals and the net injection/withdrawal available for that week. These numbers are based on the projection that storage inventory will be within normal guidelines at the end of April.
Outage Scheduled
Field
NNT Injection
NNT Withdrawal
Field Contribution to Injection (MMcf/d)
Field Percentage of Total Injection
Total NNT Injection Available during Outage (MMcf/d)
Field Contribution to Total Withdrawal (MMcf/d)
Field Percentage of Total Withdrawal
Total NNT Withdrawal Available during Outage (MMcf/d)
March 18 – March 25
Flank- Morrow
75*
23.1
325
120
20.3
532
March 26 – April 2
Flank - Cherokee
22.6
472
April 16 – April 23
Latigo
65
20.0
260
38
9.3
370
April 8 – April 15
Ft. Morgan
125
38.5
200
270
60.1
179
May 2- May 9
Boehm
60
18.5
265
10
2.9
331
*Note: Flank has two reservoirs which will be tested separately. Flank Morrow reservoir will be tested beginning March 18
through March 25 and Flank Cherokee reservoir will be tested beginning March 26 – April 2. The impact to injection
capability will be minimal, and no reductions to customer's firm injection rights will be made during these separate
Flank Bottom Hole Pressure Surveys.
During the Bottom Hole Pressure Surveys for FT. Morgan, Latigo and Boehm firm shippers' ADIQ will be reduced by the percentage indicted above consistent with Part IV: General Terms and Conditions (GT&C) Sections 1.2(c) and 11.6 of CIG's FERC Gas Tariff Second Revised Volume No.1. For example, during Ft. Morgan maintenance, shippers will be limited to 61.5% (100-38.5) of the Standard ADIQ
Other Impacts to Shippers:
1. Shippers are asked to manage flowing supplies to keep injections and withdrawals within the adjusted limits. If small injection overruns occur, they will be based on the adjusted limits and will be authorized for NNT customers. However, if operational concerns arise because of higher levels of overrun injections, a Strained Operating Condition (SOC) may need to be implemented, and overruns will not be authorized.
2. During the week of the Ft. Morgan outage, injections under the High Available Daily Injection Quantity (High ADIQ) option described in GT&C Section 1.2 will not be supported.
3. Injections to and withdrawals from interruptible storage accounts will not be scheduled during the period of Bottom Hole Pressure Surveys.
For scheduling questions, please contact the Nominations and Scheduling Hotline 1-800-238-3764, option 2.
Any comments or questions about this report should be directed to Vic Villalva (719) 520-4251 or Cheryl Bauer (719) 520-4423.
For contractual issues, please contact your Marketing Representative.
Thank you for your assistance during this storage field maintenance.
Cheryl Bauer
Manager, CIG Gas Control Kinder Morgan Western Pipelines