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Choose your state

Our products and services differ based on state. Please select your state (or the state you're interested in) from the list to the left.

Why do our products and services differ based on state? Because our business is regulated by state. We have regulated operations in eight Western and Midwestern states. The different regulatory body for each state we serve determines what products and services we deliver in that state.

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Regulatory Filings

Regulatory Filings Directory

As a regulated utility, we make regulatory filings regularly as a course of business. You'll find regulatory filings related to your state here. Please visit other categories under Rates & Regulations and Transmission for their relevant filings (for example, rate filings in Rates, Rights & Service Rules; resource plans in Resource Plans; and transmission filings in Transmission).

We are seeking an increase to cover pipeline system integrity costs
The plan exceeds the minimum Renewable Energy Standard
We are seeking to recover the costs of providing service
We are seeking to recover the costs of providing service
Implementation of new rider to recover costs for gas pipeline integrity programs and projects.
We filed a plan to meet Colorado's renewable energy standard
Plans, reports and other resources
Low-cost wind will be added to voluntary Windsource program
The increase will fund important infrastructure improvements
Our electric and natural gas conservation improvement plan
The escrow account holds monies for decommissioning that are accessible prior to or during the decommissioning process.
Cost analysis and accrual necessary to fund used fuel storage and decommissioning of the Monticello and Prairie Island nuclear generating plants.
We filed our annual Renewable Portfolio Standard Compliance Plan.
We provide regulatory filings to commissions and stakeholders
The increase will fund important infrastructure improvements
This plan lays the foundation for the acquisition of renewable resources in our Resource Plan
We filed a pricing pilot and CPCN
The increase will fund important infrastructure improvements
Plans, reports and other resources