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Energy & Related Services — US stocks

The Energy & Related Services sector includes 154 listed US companies with a combined market capitalization of $3.54T. Its largest constituent is Exxon Mobil Corporation Common Stock (XOM). Below are the biggest Energy & Related Services stocks and the latest news across them.

$3.54T total cap154 listed companies

Largest Energy & Related Services stocks

  1. 1Exxon Mobil Corporation Common StockXOM$634Bmarket cap
  2. 2Chevron Corporation Common StockCVX$377Bmarket cap
  3. 3ConocoPhillips Common StockCOP$144Bmarket cap
  4. 4Enbridge Inc Common StockENB$123Bmarket cap
  5. 5BP p.l.c. Common StockBP$112Bmarket cap
  6. 6Canadian Natural Resources Limited Common StockCNQ$99Bmarket cap
  7. 7Equinor ASAEQNR$96Bmarket cap
  8. 8Williams Companies, Inc. (The) Common StockWMB$88Bmarket cap
  9. 9SLB Limited Common SharesSLB$86Bmarket cap
  10. 10Enterprise Products Partners L.P. Common StockEPD$82Bmarket cap
  11. 11Marathon Petroleum Corporation Common StockMPC$78Bmarket cap
  12. 12Valero Energy Corporation Common StockVLO$78Bmarket cap
  13. 13Suncor Energy Inc. Common StockSU$78Bmarket cap
  14. 14ENI S.p.A. Common StockE$77Bmarket cap
  15. 15EOG Resources, Inc. Common StockEOG$75Bmarket cap
  16. 16Phillips 66 Common StockPSX$74Bmarket cap
  17. 17Kinder Morgan, Inc. Common StockKMI$70Bmarket cap
  18. 18TC Energy Corporation Common StockTRP$68Bmarket cap
  19. 19Energy Transfer LP Common UnitsET$67Bmarket cap
  20. 20Imperial Oil Limited Common StockIMO$61Bmarket cap
  21. 21Occidental Petroleum Corporation Common StockOXY$58Bmarket cap
  22. 22Diamondback EnergyFANG$57Bmarket cap
  23. 23Targa Resources, Inc. Common StockTRGP$57Bmarket cap
  24. 24MPLX LP Common Units Representing Limited Partner InterestsMPLX$57Bmarket cap
  25. 25Cenovus Energy Inc Common StockCVE$56Bmarket cap
  26. 26ONEOK, Inc. Common StockOKE$55Bmarket cap
  27. 27Devon Energy Corporation Common StockDVN$53Bmarket cap
  28. 28Cameco Corporation Common StockCCJ$49Bmarket cap
  29. 29EQT Corporation Common StockEQT$35Bmarket cap
  30. 30Halliburton Company Common StockHAL$34Bmarket cap

Latest Energy & Related Services news

Oil Erases War Premium as Hormuz Tankers Resume: XOM, CVX, USO in Focus
Bearish

Oil Erases War Premium as Hormuz Tankers Resume: XOM, CVX, USO in Focus

Jun 25, 2026
Trump's DOJ Gas-Price Probe: What Pump Pressure Means for Refiners VLO, MPC, XOM
Bearish

Trump's DOJ Gas-Price Probe: What Pump Pressure Means for Refiners VLO, MPC, XOM

Jun 24, 2026
Hormuz Reopened: U.S. Secures Strait, Oil Risk Premium Fades — XOM, CVX, Airlines in Focus
Bearish

Hormuz Reopened: U.S. Secures Strait, Oil Risk Premium Fades — XOM, CVX, Airlines in Focus

Jun 24, 2026
White House $87.6B Iran War & Farm Aid Request: Defense (LMT, RTX) and Ag (DE, ADM) in Focus
Bullish

White House $87.6B Iran War & Farm Aid Request: Defense (LMT, RTX) and Ag (DE, ADM) in Focus

Jun 24, 2026
WTI Crude Slips Below $70 as Hormuz Tankers Flow: What It Means for XOM, CVX, Energy Stocks
Bearish

WTI Crude Slips Below $70 as Hormuz Tankers Flow: What It Means for XOM, CVX, Energy Stocks

Jun 24, 2026
Strait of Hormuz Reopens: 35M Barrels Flow Out as Risk Premium Fades — XOM, CVX, Tanker Stocks
Bearish

Strait of Hormuz Reopens: 35M Barrels Flow Out as Risk Premium Fades — XOM, CVX, Tanker Stocks

Jun 24, 2026
Iran War Powers Vote and Trump Cease-Fire Cloud Oil Risk Premium: XOM, CVX, LMT in Focus
Bearish

Iran War Powers Vote and Trump Cease-Fire Cloud Oil Risk Premium: XOM, CVX, LMT in Focus

Jun 23, 2026
Lower Oil Prices and World Cup 2026 Cushion U.S. Economy as Iran Risk Lingers: XOM, DAL in Focus
Neutral

Lower Oil Prices and World Cup 2026 Cushion U.S. Economy as Iran Risk Lingers: XOM, DAL in Focus

Jun 23, 2026
Iran Oil Sanctions Waivers Pressure Crude Prices: XOM, CVX, OXY Face Supply Headwind
Bearish

Iran Oil Sanctions Waivers Pressure Crude Prices: XOM, CVX, OXY Face Supply Headwind

Jun 23, 2026
Oil Prices Edge Up on U.S.-Iran Watch as Citi Says Mideast Risk 'Overhang' Fades: XOM, CVX in Focus
Bearish

Oil Prices Edge Up on U.S.-Iran Watch as Citi Says Mideast Risk 'Overhang' Fades: XOM, CVX in Focus

Jun 23, 2026
Trump Greenlights Iranian Oil Imports Through August — Bearish Supply Signal for XOM, CVX
Bearish

Trump Greenlights Iranian Oil Imports Through August — Bearish Supply Signal for XOM, CVX

Jun 22, 2026
U.S.-Iran Talks Progress: Oil Risk Premium Fades, Energy and Defense Stocks in Focus (XOM, CVX, LMT)
Bearish

U.S.-Iran Talks Progress: Oil Risk Premium Fades, Energy and Defense Stocks in Focus (XOM, CVX, LMT)

Jun 22, 2026

Energy & Related Services — frequently asked

What are the largest Energy & Related Services stocks?

The biggest US Energy & Related Services companies by market cap include Exxon Mobil Corporation Common Stock (XOM), Chevron Corporation Common Stock (CVX), ConocoPhillips Common Stock (COP), Enbridge Inc Common Stock (ENB), BP p.l.c. Common Stock (BP). The full ranked list is shown above.

How big is the US Energy & Related Services sector?

The Energy & Related Services sector spans 154 listed US companies with a total market capitalization of about $3.54T.

Where can I see Energy & Related Services news?

The latest stories across Energy & Related Services companies are listed in the news section on this page, updated as they are published.

Market capitalization figures are aggregated from listed US companies and provided for information only — not investment advice.

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