- AFB
- ALSO
- ASML
- AT
- AV
- BCA
- BKH
- BLW
- CALX
- CCA
- CESX
- CGI
- CHS
- CIF
- CLNO
- CMGE
- CMS
- CNL
- CPN
- CPPXF
- CPSS
- CSCD
- CSQ
- CSX
- CTLE
- CUDA
- CVC
- D
- DLPM
- DRWI
- DSM
- DTE
- EBR
- EFT
- EIM
- EIO
- ELLO
- ETR
- EVF
- FE
- FOR
- FPI
- FPT
- HIO
- HIX
- HYSR
- IIM
- IOT
- ITC
- ITUB
- JACK
- JCS
- JOES
- JOSB
- JQC
- JUHL
- KB
- KEP
- KONG
- MCI
- MGT
- MIN
- MSD
- MUI
- NDLS
- NENE
- NQS
- NTC
- NUM
- NVC
- NXP
- NXQ
- OGE
- PCQ
- PHF
- PHK
- PIM
- PMM
- PNW
- POM
- POR
- RCS
- SEFE
- SRLP
- TAST
- TICC
- TIPT
- TNET
- TROW
- XEL
- ZIPR
- ZOES
- ZPCM
Utilities > Gas Utilities:
- Centerpoint Energy, Inc. (CNP)
- Niska Gas Storage Partners Llc (NKA)
- South Jersey Industries Inc. (SJI)
- New Jersey Resources Corp. (NJR)
- Rgc Resources Inc. (RGCO)
- Laclede Group Inc. (LG)
- Delta Natural Gas Co. Inc. (DGAS)
- Summit Midstream Partners, Lp (SMLP)
- Cheniere Energy Partners Lp Holdings Llc (CQH)
- Gas Natural Inc. (EGAS)
- Chesapeake Utilities Corporation (CPK)
- China Natural Gas, Inc. (CHNGQ)
- Agl Resources Inc. (GAS)
- Oneok Inc. (OKE)
- Atmos Energy Corporation (ATO)
- Integrys Energy Group, Inc. (TEG)
- Amerigas Partners Lp (APU)
- Uil Holdings Corporation (UIL)
- Questar Corporation (STR)
- Transportadora De Gas Del Sur (TGS)
- National Grid Plc (NGG)
- Southcross Energy Partners, L. (SXE)
- Wgl Holdings Inc. (WGL)
- Clean Energy Fuels Corp. (CLNE)
- Suburban Propane Partners, L.p (SPH)
- Piedmont Natural Gas Co. Inc. (PNY)
- Southwest Gas Corporation (SWX)
- Northwest Natural Gas Company (NWN)