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PA · gas · R-2025-3053499

Columbia Gas of Pennsylvania — 2025 general rate case

Bottom line

The authorized increase was about half the revised utility request. The Commission set a 10.00% ROE, a 54.4% common-equity ratio, a $3.826 billion rate base, and a 7.82% overall return rather than approving a black-box settlement.

Case summary

Columbia Gas requested a revised $110.4 million annual increase. The Commission authorized $55.6 million, effective January 1, 2026, after litigating the revenue requirement and cost of capital.

Latest development
Commission entered reconsideration decision

Feb 19, 2026

Next event
No scheduled event

Not scheduled

Case stage

Regulatory process

complete

  1. Filed

    Mar 20, 2025

  2. Testimony

    Not recorded

  3. Hearings

    Not recorded

  4. Briefing

    Not recorded

  5. Decision

    Dec 9, 2025

  6. Rates effective

    Jan 1, 2026

State rules

Base-rate reviews and adjustment mechanisms in Pennsylvania

This docket is a full base-rate review. Selected charges can change on separate schedules without reopening every issue in this case.

Full base-rate review

No fixed recurring interval

A utility initiates a general rate increase by filing a new tariff. It cannot file another general increase for the same service until the prior request is decided or its maximum suspension period expires.

Rate period: Case-specific; Pennsylvania law sets the filing and decision clock rather than a standard single-year or multi-year plan.

Governing rule ↗

Between full reviews

Purchased gas cost recovery

Annual rate · quarterly reconciliation

Large gas distributors file an annual gas-cost tariff and quarterly recalculations. Material differences can change the tariff between annual proceedings, with over- and under-collections reconciled.

Governing source ↗

Distribution System Improvement Charge

Quarterly updates · annual reconciliation

An approved DSIC can recover eligible distribution investment between base-rate cases. The formula is updated quarterly and reconciled annually, subject to the utility's approved long-term infrastructure plan.

Governing source ↗
View the full Pennsylvania regulatory framework →

Commission decision

Economics

Utility request and Commission-authorized outcome.

MetricUtility requestAuthorized outcomeLike-for-like difference
Annual revenue increase

$110.44M

Fully projected future test year ending December 31, 2026

$55.6M

Prior authorized observation · Dec 9, 2025

Not compared: scope, period differ

Rate base

$3,839.64M

Fully projected future test year ending December 31, 2026 · Sep 5, 2025

$3,825.96M

Authorized FPFTY base-rate rate base · Dec 9, 2025

Not compared: period differ

Return on equity

11.35%

Fully projected future test year ending December 31, 2026 · Mar 20, 2025

10%

Authorized return on common equity · Dec 9, 2025

Not compared: period differ

Common equity ratio

54.4%

Fully projected future test year ending December 31, 2026 · Mar 20, 2025

54.4%

Authorized common-equity share of capitalization · Dec 9, 2025

Not compared: scope, period differ

Residential bill impact

11.38%

Fully projected future test year ending December 31, 2026 · Mar 20, 2025

Not specified

Fully projected future test year ending December 31, 2026 · Dec 9, 2025

Not compared: scope differ

Utility context

Prior authorizations, mechanism values, actuals, and company projections are shown separately because they are not default like-for-like case comparisons.

Annual revenue change

authorized · Prior authorized observation · Dec 8, 2022

$44.5M

Return on equity

authorized · Prior authorized observation · Feb 19, 2021

9.86%

Full docket record

6 events · 3 documents · 9 citations

View record
Last updated
Jul 20, 2026
Docket reviewed
Jul 20, 2026
Economics reviewed
Jul 20, 2026
Official documents
3
Evidence citations
9

Docket history

Material filings, hearings, orders, and effective dates.

  1. Mar 20, 2025

    General rate application filed

    official commission · completed

  2. Dec 4, 2025

    Commission approved final rate adjustment

    official commission · completed

  3. Dec 9, 2025

    Final order entered

    official commission · completed

  4. Dec 23, 2025

    Petitions for reconsideration filed

    official commission · completed

  5. Jan 1, 2026

    Approved rates became effective

    official commission · completed

  6. Feb 19, 2026

    Commission entered reconsideration decision

    official commission · completed

Documents

Docket and evidence documents linked to this proceeding.

Columbia Gas of Pennsylvania rate case docket

official docket · primary ·

Open document ↗

Columbia Gas regulatory information and approved rate adjustment

evidence · primary · Dec 9, 2025

Open document ↗

Pennsylvania PUC final opinion and order in Columbia Gas of Pennsylvania's 2025 base rate case

evidence · direct · Dec 9, 2025

Open document ↗

Citations

Field-level excerpts and review metadata supporting material facts.

Pennsylvania PUC final opinion and order in Columbia Gas of Pennsylvania's 2025 base rate case

final order · Dec 9, 2025

Pennsylvania PUC final opinion and order in Columbia Gas of Pennsylvania's 2025 base rate case

final order · Dec 9, 2025

Pennsylvania PUC final opinion and order in Columbia Gas of Pennsylvania's 2025 base rate case

final order · Dec 9, 2025

Pennsylvania PUC final opinion and order in Columbia Gas of Pennsylvania's 2025 base rate case

final order · Dec 9, 2025

Pennsylvania PUC final opinion and order in Columbia Gas of Pennsylvania's 2025 base rate case

final order · Dec 9, 2025

Pennsylvania PUC final opinion and order in Columbia Gas of Pennsylvania's 2025 base rate case

final order · Dec 9, 2025

Pennsylvania PUC final opinion and order in Columbia Gas of Pennsylvania's 2025 base rate case

final order · Dec 9, 2025

Columbia Gas regulatory information and approved rate adjustment

utility webpage · Dec 9, 2025

Columbia Gas of Pennsylvania rate case docket

commission docket ·

Raw observations

Stage-preserving economics and party positions as published in the canonical record.

MetricStagePartyPeriodValueEvidence
Annual revenue changeutility rebuttalColumbia Gas of Pennsylvania, Inc.Fully projected future test year ending December 31, 2026$110.44M
Common equity ratioutility requestColumbia Gas of Pennsylvania, Inc.Fully projected future test year ending December 31, 202654.4%
Overall rate of returnauthorizedparty-commissionFully projected future test year ending December 31, 20267.82%
Overall rate of returnutility requestColumbia Gas of Pennsylvania, Inc.Fully projected future test year ending December 31, 20268.55%
Rate baseutility rebuttalColumbia Gas of Pennsylvania, Inc.Fully projected future test year ending December 31, 2026$3,839.64M
Residential monthly bill impactauthorizedparty-commissionFully projected future test year ending December 31, 2026Not specified
Residential monthly bill impactutility requestColumbia Gas of Pennsylvania, Inc.Fully projected future test year ending December 31, 202611.38%
Return on equityutility requestColumbia Gas of Pennsylvania, Inc.Fully projected future test year ending December 31, 202611.35%
Common equity ratioauthorizedparty-commission54.4%
Rate baseauthorizedparty-commission$3,825.96M
Return on equityauthorizedparty-commission10%
Annual revenue changeauthorizedparty-commission$55.6M
Revenue changeauthorizedparty-commission6.05%
Revenue changeutility requestparty-utility12%