Transportation Customer Rates
We offer natural gas transportation services on many of our local distribution and mainline pipelines. If you subscribe to transportation services, you’ll need to obtain your natural gas supply and manage your daily activities on our pipelines. We also offer market center and storage services on certain mainline systems.
Tariffs
A tariff is a group of schedules filed with our regulatory commissions. Tariffs contain basic rates, supplemental rates or riders, and general terms and conditions for providing utility service.
| State | Pipeline | Tariff |
|---|---|---|
| Arkansas | Black Hills Energy Arkansas, Inc. | Download tariff |
| Colorado | Black Hills Colorado Gas, Inc. | Download tariff |
| Colorado | Rocky Mountain Natural Gas LLC | Download tariff |
| Iowa | Black Hills/Iowa Gas Utility Company, LLC | Download tariff |
| Kansas | Black Hills/Kansas Gas Utility Company, LLC | Download tariff |
| Nebraska | Black Hills Nebraska Gas, LLC, d/b/a Black Hills Energy | Download tariff |
| Wyoming | Black Hills Wyoming, LLC | Download tariff |
| Wyoming | Black Hills Wyoming Gas, LLC | Download tariff |
| Wyoming | Black Hills Shoshone Pipeline, LLC | Download tariff |
Filings
From time to time, we make updates to our rates and programs. The following information is to keep you up to date about the changes that apply to transportation customers and to comply with the public utilities law.
ANNUAL FUEL, LOST AND UNACCOUNTED-FOR (“FL&U”) GAS REIMBURSEMENT QUANTITY PERCENTAGE FILING FOR ROCKY MOUNTAIN NATURAL GAS LLC
On September 27, 2024, the Company filed a request with the Public Utilities Commission of the State of Colorado that reflects a proposed decrease to the Company’s FL&U rate. If approved, the decrease will become effective November 1, 2024. The FL&U is reflected in the volume nominations by Shippers onto the Company’s system; and therefore, the proposed tariff amendment will have no effect on the Company’s revenues. The Commission has opened Proceeding No. 24AL-0416G for the Company’s filing. The filing documents are below for your viewing.
- Attachment A - Clean Tariff Sheet No. 9
- Attachment B - Redline Tariff Sheet No
- Attachment C - RMNG FL&U Calculation 2024
- Attachment D - RMNG FL&U Report 2024
- Attachment E - RMNG FL&U Notice 2024
- RMNG FL&U Advice Letter No. 133
ROCKY MOUNTAIN NATURAL GAS LLC REVENUE ADJUSTMENT MECHANISM FILING EFFECTIVE JAN. 1, 2026
On Nov. 1, 2025, the Company filed a request with the Public Utilities Commission of the State of Colorado that reflected a proposed change to the Revenue Adjustment Mechanism (“RAM”) for both Firm Transportation Service (“FTS”) and No-Notice Storage (“NNS”) rates. An amendment to the filing was made on Dec. 18, 2025. The effective date for the revision is Jan. 1, 2026. The advice letter and associated amendment received Commission approval for the proposed increase to the RAM-FTS credit from ($0.7950) to ($1.1852) per Dth of Maximum Daily Transportation Quantity (MDTQ”) per monthly billing period. The proposal to decrease the RAM-NNS credit from ($6.6978) to ($4.5061) per Dth of MDTQ was also approved by the Commission. This proceeding was assigned Proceeding No. 25AL-0466G. The filing documents are below for your viewing.
- Amended Attachment A - RMNG RAM Clean Tariffs
- Amended Attachment B - RMNG RAM Redline Tariffs
- Amended Attachment C - RMNG 2026 RAM-FTS
- Amended AL 139 RMNG RAM
ROCKY MOUNTAIN NATURAL GAS LLC AMENDED TARIFFS
On April 22, 2025, the Company filed a request with the Public Utilities Commission of the State of Colorado that reflects amendments to the Company's Colorado PUC No. 4 tariff to reflect corresponding corrections FERC recommended to RMNG's Statement of Operating Conditions ("SOC") which is the Company's FERC tariff. There are no changes to rates. The filing documents are below for your viewing.