Small Cap
Oil & Gas Integrated
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
|
DEC
1
Diversified Energy Company
DEC
$1.04B
| $1.04B | $14.67 | 1.08% |
|
2
Riley Exploration Permian
REPX
$828M
| $828M | $37.36 | 0.69% |
|
|
OBE
3
Obsidian Energy
OBE
$735M
| $735M | $11.01 | 4.43% |
|
4
Ring Energy
REI
$375M
| $375M | $1.44 | 0.69% |
|
5
Gran Tierra Energy
GTE
$340M
| $340M | $9.62 | 3.32% |
|
Small 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 5 small cap Oil & Gas Integrated stocks — companies in the Oil & Gas Integrated industry with a market cap between $250M and $2B — worth a combined $3.32B.
The largest by market cap are Diversified Energy Company (DEC) at $1.04B, Riley Exploration Permian (REPX) at $828M and Obsidian Energy (OBE) at $735M.
Among institutional investors, Riley Exploration Permian (REPX) drew the most net new fund positions in Q2 2026: 52 funds opened new positions, taking total fund holders up 29 (17%) quarter-over-quarter.
- Combined market cap: $3.32B across 5 stocks.
- Small Cap: market cap between $250M and $2B.
- Largest constituent: Diversified Energy Company (DEC), $1.04B market cap.
- Most net new fund positions in Q2 2026: Riley Exploration Permian (REPX), +29 holders.
Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.