Utility Mergers

EIA-861 mergers: utilities merged or acquired during the report year.

EIAInfrastructure data

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Native record

event_time x utility_number x merge_company x duplicate_index

annual (report year) publication cadence

Evidence

Observed market data

Published observations from the named source

Time basis

Point-in-time records

UTC · event_time

Overview

Mergers, one row per merged utility. event_time is 1 January of the report year. release is final or early_release: EIA posts an early release of a year in August and replaces it with the final file in the autumn, and the mirror keeps the newest row per key. A key cell EIA leaves blank is '' or 0, and duplicate_index numbers rows that still share a key, in workbook order.

Query contract

Preserve one canonical row per (event_time, utility_number, merge_company, duplicate_index) before aggregating.

Analysis rules

Group only after preserving the declared grain: event_time, utility_number, merge_company, duplicate_index.

Schema14

Column

Type

event_timeDateTime64(6, 'UTC')

utility_numberInt64

utility_nameLowCardinality(Nullable(String))

merge_dateLowCardinality(Nullable(String))

merge_companyLowCardinality(String)

new_parentLowCardinality(Nullable(String))

merge_addressLowCardinality(Nullable(String))

merge_cityLowCardinality(Nullable(String))

merge_stateLowCardinality(Nullable(String))

merge_zipLowCardinality(Nullable(String))

stateLowCardinality(Nullable(String))

duplicate_indexInt64

releaseLowCardinality(Nullable(String))

ingested_atDateTime64(6, 'UTC')

Sample data

event_time	utility_number	utility_name	merge_date	merge_company	new_parent	merge_address	merge_city	merge_state	merge_zip	state	release	ingested_at
2025-01-01 00:00:00.000000	13664	Norris Public Power District	10/01/2024	City of Hickman (NE)	∅	606 Irving	Beatrice	NE	68310	∅	early_release	2026-09-29 00:39:33.840421
2025-01-01 00:00:00.000000	12647	ALLETE, Inc.	12/15/2025	Alloy Parent LLC	Alloy Parent LLC	30 West Superior Street	Duluth	MN	55802	∅	early_release	2026-09-29 00:39:33.840421
2025-01-01 00:00:00.000000	4716	Dairyland Power Coop	10/31/2025	ROCKY ROAD ENERGY CENTER	Dairyland Power Cooperative	1221 POWER DRIVE	EAST DUNDEE	IL	60118	∅	early_release	2026-09-29 00:39:33.840421

Coverage

0.3% complete4,736 gap days14 days with data

Show coverage history

Coverage: 0.3%Days with data: 14Gaps: 4,736

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

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