ATO

ATMOS ENERGY CORP

Ticker: ATOUtilitiesElectric, Gas & WaterS&P 500
HQ DALLAS, TXCIK 731802FY end 09-30Book / share $91.17Shares 167M
Revenue (FY)
$4.70B+12.91%
TTM $4.92B
Op. margin
33.17%+0.63%
TTM 36.97%
Net income
$1.20B+14.94%
TTM $1.40B
Operating cash
$2.05B+18.21%
TTM $2.02B
Free cash flow
$-1.51B-25.64%
TTM $-2.02B
Return on equity
8.84%+0.26%
TTM 9.19%
Debt / equity
0.66+0.02%
TTM 0.67
Shares outstanding
160.6M+5.18%
TTM 167.4M

The business

Atmos Energy Corporation (NYSE: ATO) is a natural gas-only distributor and one of the largest natural gas utility companies in the United States. The company operates through two primary reportable segments: distribution and pipeline and storage. Headquartered in Dallas, Atmos Energy serves approximately 3.4 million residential, commercial, public authority, and industrial customers across eight states located primarily in the South, with operations in Texas, Kentucky, Tennessee, Virginia, Louisiana, Mississippi, Colorado, and Kansas. The company maintains a website at www.atmosenergy.com.

The distribution segment comprises regulated natural gas distribution and related sales operations across six divisions: Mid-Tex, Kentucky/Mid-States, Louisiana, West Texas, Mississippi, and Colorado-Kansas. The Mid-Tex Division represents the largest service area with approximately 1.83 million customer meters across 550 communities in Texas. The pipeline and storage segment includes the regulated pipeline and storage operations of Atmos Pipeline-Texas, one of the largest intrastate pipelines in Texas with five underground storage facilities, and natural gas transmission operations in Louisiana. The company operates more than 81,000 miles of distribution and transmission lines and holds 1,010 franchises across its service territories.

Atmos Energy employs approximately 5,487 people as of September 30, 2025. The company's business model centers on safely delivering reliable and efficient natural gas through regulated sales and transportation arrangements. A core competitive advantage lies in its extensive infrastructure network and established regulatory relationships across multiple states. The company has implemented formula rate mechanisms in four states and infrastructure programs in all eight states, enabling recovery of approximately 95 percent of capital expenditures within six months and substantially all within twelve months. Weather normalization adjustment mechanisms protect approximately 97 percent of residential and commercial revenues in seven states. The company maintains natural gas supply through a competitive bidding process with multiple suppliers and utilizes 33 pipeline transportation companies for delivery, providing operational flexibility and supply security.

Sector
Utilities
Industry
Electric, Gas & Water
HQ
DALLAS, TX
FY end
09-30
CIK
731802
SIC
4924
Financial performance · annual
20132025
$-494.09M$988.18M$2.47B$3.95B$5.44B2013201420152016201720182019202020212022202320242025TTMTTMTTM

Ownership

Who holds ATMOS ENERGY CORP — across funds, superinvestors and bonds · N-PORT 2026Q2 · 13F 2026-06-30

668
funds hold it
0 of 35
superinvestors hold it
$13.53B
fund-held value
45.2%
of shares held by funds
19
bond issues held by funds

Top fund holders

Fund% of fundValue
VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.04%$912.79M
VANGUARD 500 INDEX FUND
VOO · VANGUARD INDEX FUNDS
0.04%$745.14M
VANGUARD SMALL-CAP INDEX FUND
VB · VANGUARD INDEX FUNDS
0.35%$659.37M
iShares MSCI USA Quality Factor ETF
QUAL · iShares Trust
1.21%$604.17M
American Funds Fundamental Investors
ANCFX
0.30%$536.86M

Bonds held by funds

Funds report holding 19 issues of ATMOS ENERGY CORP's debt, $853.16M at fund-held market value — what funds hold, not the company's debt outstanding. Weighted-average coupon 4.52%, maturing 20272056.

IssueCouponMaturesFundsFund-held
Atmos Energy Corp5.900%2033-11-1560$114.40M
Atmos Energy Corp.5.000%2054-12-1537$93.02M
Atmos Energy Corp5.200%2035-08-1541$81.21M
ATMOS ENERGY COR4.750%2032-01-1525$69.38M
Atmos Energy Corp1.500%2031-01-1549$58.57M
Atmos Energy Corp2.630%2029-09-1537$56.77M
Atmos Energy Corp.5.450%2032-10-1526$41.78M
Atmos Energy Corp5.450%2056-01-1543$41.44M
Atmos Energy Corp3.000%2027-06-1530$40.85M
Atmos Energy Corp3.380%2049-09-1531$37.81M

The 10 largest by fund-held value, of 19.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

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