Mid Cap
Oil & Gas Integrated
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
1
National Fuel Gas
NFG
$7.81B
| $7.81B | $82.14 | 0.39% |
|
2
Transportadora de Gas del Sur
TGS
$4.28B
| $4.28B | $28.41 | 0.39% |
|
Mid Cap Oil & Gas Integrated Stocks at a Glance
Integrated oil and gas majors span the full value chain — exploration, production, refining, marketing, and transportation. Diversification smooths the commodity cycle: downstream margins often improve when crude falls, supporting the steadier cash flows and dividends the group is known for.
There are 2 mid cap Oil & Gas Integrated stocks — companies in the Oil & Gas Integrated industry with a market cap between $2B and $10B — worth a combined $12.1B.
The largest by market cap are National Fuel Gas (NFG) at $7.81B and Transportadora de Gas del Sur (TGS) at $4.28B.
Among institutional investors, Transportadora de Gas del Sur (TGS) drew the most net new fund positions in Q2 2026: 19 funds opened new positions, taking total fund holders up 5 (6.1%) quarter-over-quarter.
- Combined market cap: $12.1B across 2 stocks.
- Mid Cap: market cap between $2B and $10B.
- Largest constituent: National Fuel Gas (NFG), $7.81B market cap.
- Most net new fund positions in Q2 2026: Transportadora de Gas del Sur (TGS), +5 holders.
Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.