Large Cap
Oil & Gas Refining & Marketing
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
1
Marathon Petroleum
MPC
$99.7B
| $99.7B | $354.88 | 2.11% |
|
2
Valero Energy
VLO
$98B
| $98B | $340.41 | 1.62% |
|
3
Phillips 66
PSX
$94.5B
| $94.5B | $236.90 | 2.09% |
|
4
HF Sinclair
DINO
$16.6B
| $16.6B | $93.24 | 2.04% |
|
5
Sunoco
SUN
$14.1B
| $14.1B | $74.60 | 1.98% |
|
Large Cap Oil & Gas Refining & Marketing Stocks at a Glance
Refining and marketing companies turn crude oil into fuels and sell petroleum products. Profits ride the crack spread — the gap between crude costs and product prices — so earnings can move violently, and often counter to the oil price itself.
There are 5 large cap Oil & Gas Refining & Marketing stocks — companies in the Oil & Gas Refining & Marketing industry with a market cap between $10B and $200B — worth a combined $323B.
The largest by market cap are Marathon Petroleum (MPC) at $99.7B, Valero Energy (VLO) at $98B and Phillips 66 (PSX) at $94.5B.
Among institutional investors, Valero Energy (VLO) drew the most net new fund positions in Q2 2026: 230 funds opened new positions, taking total fund holders up 99 (5.3%) quarter-over-quarter.
- Combined market cap: $323B across 5 stocks.
- Large Cap: market cap between $10B and $200B.
- Largest constituent: Marathon Petroleum (MPC), $99.7B market cap.
- Most net new fund positions in Q2 2026: Valero Energy (VLO), +99 holders.
Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.