Small Cap
Oil & Gas Integrated
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
1
Riley Exploration Permian
REPX
$1.18B
| $1.18B | $53.27 | 2.25% |
|
2
Diversified Energy Company
DEC
$997M
| $997M | $14.44 | 1.16% |
|
3
Obsidian Energy
OBE
$787M
| $787M | $11.80 | 1.03% |
|
4
Gran Tierra Energy
GTE
$401M
| $401M | $11.33 | 0.18% |
|
5
Ring Energy
REI
$373M
| $373M | $1.43 | 0.7% |
|
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 $3.74B.
The largest by market cap are Riley Exploration Permian (REPX) at $1.18B, Diversified Energy Company (DEC) at $997M and Obsidian Energy (OBE) at $787M.
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: $3.74B across 5 stocks.
- Small Cap: market cap between $250M and $2B.
- Largest constituent: Riley Exploration Permian (REPX), $1.18B 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.