Northern Oil and Gas and Riley Exploration Permian Stocks Trade Down, What You Need To Know

What Happened?

A number of stocks fell in the afternoon session after a peace agreement between the U.S. and Iran sent oil prices tumbling, dragging down the energy sector. 

Rystad Energy estimated that US shale producers stood to generate an additional $63 billion in free cash flow in 2026 if WTI averaged $100 for the year. With WTI falling more than 5% to $80.61, that calculation shifted materially. Most producers remain profitable at current prices, but the marginal economics of new well drilling weaken meaningfully at lower levels, and the market prices direction as much as the current number. 

The structural concern extended beyond the session. The peace deal opens a 60-day negotiation on lifting Iranian oil sanctions. If Iranian exports are eventually restored (they ran at roughly 3 million barrels per day before the conflict) the additional supply would represent a persistent overhang that US shale producers, who were the primary market-share beneficiaries of Iran's absence from global markets, would absorb most directly.

The stock market overreacts to news, and big price drops can present good opportunities to buy high-quality stocks.

Among others, the following stocks were impacted:

• U.S. Shale E&P company Northern Oil and Gas (NYSE:NOG) fell 3.2%. Is now the time to buy Northern Oil and Gas? Access our full analysis report here, it’s free.
• U.S. Shale E&P company Riley Exploration Permian (NYSE:REPX) fell 4%. Is now the time to buy Riley Exploration Permian? Access our full analysis report here, it’s free.

Zooming In On Riley Exploration Permian (REPX)

Riley Exploration Permian’s shares are very volatile and have had 21 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.

The previous big move we wrote about was 5 days ago when the stock gained 4% on the news that the U.S. launched "self-defense strikes" on Iran as Trump warned the country "will have to pay the price" for stalling negotiations. 

WTI rose up more than 2% to $90+ on Trump's Iran escalation. Cushing inventories fell to around 22 million barrels, multi-decade lows. The EIA projects global inventory draws of 6.3 million barrels per day in Q2 and 7.6 million in Q3, as Iran's production disruption removed more than 11 million barrels per day from global supply. U.S. shale is the primary swing producer projected to fill that gap.

Riley Exploration Permian is up 27.3% since the beginning of the year, but at $33.87 per share, it is still trading 17.8% below its 52-week high of $41.21 from May 2026. Despite the year-to-date gain, investors who bought $1,000 worth of Riley Exploration Permian’s shares 5 years ago would now be looking at only $705.52.

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