Ameren Corporation (AEE) Revenue by Segment

Ameren revenue by segment at a glance

In Q2 fiscal 2026 (the quarter ended June 30, 2026), Ameren's largest business segment was Union Electric Company, with $1.11 billion or 53% of revenue, down 16.6% from a year earlier. Next: Ameren Illinois Electric Distribution (30%), Ameren Illinois Gas (8%) and Ameren Transmission (8%).

By product or service, Electricity brought in 90% and Natural Gas brought in 10% of revenue in Q2 fiscal 2026.

The fastest-growing business segment from a year earlier was Ameren Illinois Gas (+11.4%).

From company filings, in USD; latest quarter ended June 30, 2026; quarterly data from Q3 fiscal 2017.

Ameren Corporation

AEEUtilities

United States

Utilities

Revenue breakdown

Fiscal quarters, from company filings

Segments by quarter (USD)

Click a bar to see that period below. Striped bars are calculated fourth quarters; an empty slot means it could not be calculated on the same basis i

Union Electric CompanyAmeren Illinois Electric DistributionAmeren Illinois GasAmeren Transmission

Q2 FY26 breakdown

Fiscal quarter ended Jun 30, 2026

Item	Revenue	Share	vs year before
Union Electric Company	USD 1.11B	53.1%	-16.6%
Ameren Illinois Electric Distribution	USD 629.00M	30.1%	+10.4%
Ameren Illinois Gas	USD 176.00M	8.4%	+11.4%
Ameren Transmission	USD 176.00M	8.4%	+9.3%

Sum of items USD 2.09B. Shares are of the items shown. Click an item with › to see its parts.

Also reported by:

All periods

Every item and period in one grid. Purple = calculated; "–" = not available.

Item	Q2 FY26	Q1 FY26	Q4 FY25	Q3 FY25	Q2 FY25	Q1 FY25	Q4 FY24	Q3 FY24	Q2 FY24	Q1 FY24	Q4 FY23	Q3 FY23	Q2 FY23	Q1 FY23	Q4 FY22	Q3 FY22	Q2 FY22	Q1 FY22	Q4 FY21	Q3 FY21	Q2 FY21	Q1 FY21	Q4 FY20	Q3 FY20	Q2 FY20	Q1 FY20	Q4 FY19	Q3 FY19	Q2 FY19	Q1 FY19	Q4 FY18	Q3 FY18	Q2 FY18	Q1 FY18	Q4 FY17	Q3 FY17
Union Electric Company	1.1B	920.0M	–	1.7B	1.3B	950.0M	–	1.3B	879.0M	768.0M	–	1.2B	933.0M	913.0M	–	1.4B	912.0M	808.0M	–	1.1B	799.0M	695.0M	636.0M	990.0M	782.0M	–	–	1.1B	790.0M	751.0M	707.0M	1.1B	955.0M	792.0M	–	1.1B
Ameren Illinois Electric Distribution	629.0M	643.0M	–	698.0M	570.0M	570.0M	–	551.0M	509.0M	506.0M	–	557.0M	540.0M	624.0M	–	672.0M	504.0M	464.0M	–	425.0M	386.0M	411.0M	365.0M	390.0M	352.0M	390.0M	–	389.0M	358.0M	386.0M	367.0M	392.0M	387.0M	400.0M	–	404.0M
Ameren Illinois Gas	176.0M	436.0M	–	117.0M	158.0M	411.0M	–	121.0M	148.0M	391.0M	–	121.0M	152.0M	391.0M	–	146.0M	184.0M	481.0M	–	127.0M	168.0M	347.0M	227.0M	122.0M	–	271.0M	–	112.0M	136.0M	320.0M	245.0M	116.0M	142.0M	311.0M	–	112.0M
Ameren Transmission	176.0M	177.0M	–	188.0M	161.0M	166.0M	–	168.0M	157.0M	151.0M	–	154.0M	135.0M	134.0M	–	137.0M	126.0M	126.0M	–	141.0M	119.0M	113.0M	123.0M	–	136.0M	123.0M	–	128.0M	95.0M	99.0M	100.0M	113.0M	103.0M	104.0M	–	119.0M

Ameren revenue by business segment, last 4 quarters

Business segment	Q2 FY26	Q1 FY26	Q3 FY25	Q2 FY25	Share
Union Electric Company	$1.1B	$920.0M	$1.7B	$1.3B	53%
Ameren Illinois Electric Distribution	$629.0M	$643.0M	$698.0M	$570.0M	30%
Ameren Illinois Gas	$176.0M	$436.0M	$117.0M	$158.0M	8%
Ameren Transmission	$176.0M	$177.0M	$188.0M	$161.0M	8%

In USD, fiscal quarters as reported; share = part of Q2 FY26 revenue.

Ameren revenue by product or service, last 4 quarters

Product or service	Q2 FY26	Q1 FY26	Q3 FY25	Q2 FY25	Share
Electricity	$1.9B	$1.7B	$2.6B	$2.0B	90%
Natural Gas	$205.0M	$515.0M	$136.0M	$183.0M	10%

In USD, fiscal quarters as reported; share = part of Q2 FY26 revenue.

Questions and answers

What are Ameren's business segments?

Union Electric Company, Ameren Illinois Electric Distribution, Ameren Illinois Gas and Ameren Transmission (as reported for Q2 fiscal 2026).

Which business segment makes the most money for Ameren?

Union Electric Company: $1.11 billion, or 53% of revenue, in Q2 fiscal 2026.

What are Ameren's main products and services?

By revenue in Q2 fiscal 2026: Electricity (90%) and Natural Gas (10%).

MoreAmeren stock overview Ameren financials Ameren executive team Ameren shareholders

Disclaimer: This analysis is for informational and educational purposes only and does not constitute financial, investment, tax, or legal advice. Data may be incomplete, delayed, or contain inaccuracies. Consult with a qualified financial advisor before making any investment decisions.