Companies to watch: 

Twenty promising climatetech companies were selected to advance to the final stage of a global competition backed by Elon Musk's foundation — and three of the finalists hail from Houston.

Vaulted Deep, Mati Carbon, and Climate Robotics secured finalists spots in XPRIZE's four-year global competition is designed to combat climate change with innovative solutions. XPRIZE Carbon Removal will offer $100 million to innovators who are creating solutions that removes carbon dioxide directly from the atmosphere or the oceans, and then sequester it sustainably.

The finalists — categorized into four sections: air, rocks, oceans, and land — were selected based upon their performance in three key areas: operations, sustainability, and cost. Click here to read more.

Events not to miss

Put these Houston-area energy-related events on your calendar.

• 2nd Annual Geothermal Transition Summit for North America will take place May 21 and 22 at The Hilton Greenway Plaza. Engage in discussions on early-project development, industry policies, the synergy with the oil and gas industry, methods to enhance commerciality, and explore case studies from ground-breaking projects.Register now.
• The Energy Drone & Robotics Summit is coming to Houston June 10 to 12. Join for the ultimate event in the world for UAVs, Robotics & Data/AI, 3D Reality Capture, Geospatial and Digital Twins focused on the business and technology in energy & industrial operations, inspections, maintenance, surveying & mapping. Register now.
• Argus Clean Ammonia North America Conference will take place on June 12 to 14 at the Hyatt Regency Houston. Over the three days of the conference, explore the big questions many producers are facing around where demand is coming from, expect to hear perspectives from key domestic consumers as well as international demand centres for clean ammonia. Register now.
• Join the over 150 senior energy and utilities leaders from June 17 to 18 in Houston for AI in Energy to unlock the potential of AI within your enterprise and delve into key areas for its development.Register now. 
• Energy Underground (June) is a group of professionals in the Greater Houston area that are accelerating the Energy Transition that connect monthly at The Cannon - West Houston. Register now.

Big deal: Equinor bets on lithium

Equinor, which has its U.S. headquarters in Houston, has entered into a deal to take a 45-percent share in two lithium project companies in Southwest Arkansas and East Texas. The agreement is with Vancouver, Canada-based Standard Lithium Ltd. to make the acquisition. Standard Lithium retaining operatorship, while Equinor will support through its core competencies, like subsurface and project execution capabilities.

Standard Lithium retains the other 55 percent of the projects. Per the deal, will pay $30 million in past costs net to the acquired interest. The company also agreed to carry Standard Lithium's capex of $33 million "to progress the assets towards a possible final investment decision," per the release. Additionally, Equinor will make milestone payments of up to $70 million in aggregate to Standard Lithium should a final investment decision be taken. Click here to read more.