Here is a look at some of this week’s renewable energy news, including a U.S. Geological Survey-led study pointing to massive estimated lithium reserves in the Arkansas Smackover.

A shrinking pool of opportunities is leading to scarcity and driving the rising valuations for crude E&Ps in the current A&D market, said TD Cowen analyst David Deckelbaum at Hart Energy’s A&D Strategies and Opportunities Conference.

Adding new-well inventory going forward will require “exploration or other creative measures,” said Nick O’Grady, whose Northern Oil and Gas holds interests in 10,000 Lower 48 wells.

Northern Oil and Gas CEO Nick O’Grady said the Uinta Basin has stayed off the radar but a time may come when Utah’s best kept secret starts to heat up in the M&A market.

The operator holds 8,900 net Haynesville Shale acres and 14,800 net Cotton Valley acres in northwestern Louisiana, all HBP, that it would drill if gas prices stabilize—or divest for the right price.