In this article, we are going to discuss the energy stocks that are gaining this week.
With nuclear back in the spotlight as a leading candidate to power the AI boom, the United States and the United Kingdom signed a landmark agreement this week focused on accelerating the development of nuclear power in both countries. Known as the Atlantic Partnership for Advanced Nuclear Energy, the multi-billion-dollar pact is expected to halve the time required to gain regulatory approval for nuclear projects from up to four years to two.
The deal, which focuses on small modular reactors (SMRs) and advanced modular reactors (AMRs), presents American companies with the opportunity to develop reactors and power-intensive infrastructure abroad, in addition to boosting exports. It is estimated that the overall program could deliver at least £40 billion ($54.4 billion) in economic value.
Our Methodology
To collect data for this article, we have referred to several stock screeners to find energy stocks that have surged the most between September 9 and September 16, 2025. The following are the Energy Stocks that Gained the Most This Week. The stocks are ranked according to their share price surge during this period.
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10. California Resources Corporation (NYSE:CRC)
Share Price Gains Between Sep 9 – Sep 16: 9.83%
California Resources Corporation (NYSE:CRC) operates as an independent energy and carbon management company in the United States.
California Resources Corporation (NYSE:CRC) garnered widespread investor attention after it was recently announced that the company is set to acquire Berry Corporation in an all-stock transaction valued at around $717 million. CRC revealed that it expects to generate $80–90 million in annual synergies within a year of closing and maintain a leverage ratio below 1.0x.
Francisco Leon, President and CEO of California Resources Corporation (NYSE:CRC), stated:
“The combination of CRC and Berry will create a stronger, more efficient California energy leader. This transaction is attractively valued and immediately accretive across key financial metrics, strengthening our ability to deliver sustainable value to shareholders”.
Following the announcement, Mizuho raised its price target for California Resources Corporation (NYSE:CRC) from $65 to $71, while keeping an ‘Outperform’ rating on its shares.
9. NGL Energy Partners LP (NYSE:NGL)
Share Price Gains Between Sep 9 – Sep 16: 10.22%
NGL Energy Partners LP (NYSE:NGL) is a diversified midstream MLP that provides multiple services to producers and end-users, including transportation, storage, blending, and marketing of crude oil, NGLs, refined products/renewables, and water solutions.
NGL Energy Partners LP (NYSE:NGL) hit a 5-year high this week following reports that the company’s director, James Collingsworth, has made a significant investment in NGL by purchasing 100,000 shares of its common stock, valued at around $580,000.
Following the recent uptick, the share price of NGL Energy Partners LP (NYSE:NGL) has surged by more than 40% over the last year.
8. Fluence Energy, Inc. (NASDAQ:FLNC)
Share Price Gains Between Sep 9 – Sep 16: 10.62%
Fluence Energy, Inc. (NASDAQ:FLNC) is a global market leader delivering intelligent energy storage and optimization software for renewables and storage.
Fluence Energy, Inc. (NASDAQ:FLNC) gained following recent reports that the company is set to provide the technology for two large battery energy storage systems (BESS) projects in Switzerland, with a combined capacity of 58.6 MW. Work on the facilities is due to begin imminently, while commissioning is planned for the first half of 2026.
Markus Meyer, Managing Director of Fluence Energy, Inc. (NASDAQ:FLNC) stated:
“We’re delighted to be making a key contribution to this pioneering storage project. The two plants impressively demonstrate how large-scale battery storage can strengthen security of supply and flexibility in the Swiss energy system”.
It needs mentioning that Fluence Energy, Inc. (NASDAQ:FLNC) recently also completed 200 MW of energy storage facilities with the DTEK Group in Ukraine, which is currently the largest such complex in the country.
7. APA Corporation (NASDAQ:APA)
Share Price Gains Between Sep 9 – Sep 16: 13.16%
APA Corporation (NASDAQ:APA) is an independent energy company that explores for, develops, and produces natural gas, crude oil, and natural gas liquids.
APA Corporation (NASDAQ:APA) received a boost after the company recently announced a quarterly dividend of $0.25 per share, in line with the previous. The dividend is payable on November 21, 2025, to stockholders of record on October 22, 2025.
APA Corporation (NASDAQ:APA) also garnered investor attention after Raymond James recently raised the stock’s price target from $26 to $28, while maintaining an ‘Outperform’ rating on its shares. The analyst holds APA’s continued turnaround in Q2 with a solid quarter, beating slightly on production and cash flow while reducing 2025 capex guidance, as the primary factors behind the price target update.
6. Imperial Petroleum Inc. (NASDAQ:IMPP)
Share Price Gains Between Sep 9 – Sep 16: 22.73%
Imperial Petroleum Inc. (NASDAQ:IMPP) is an international shipping transportation company specializing in the transportation of various petroleum and petrochemical products in liquefied form.
Imperial Petroleum Inc. (NASDAQ:IMPP) continues to rally following the company’s announcement of its Q2 2025 results. The shipping company highlighted a significant expansion of its fleet, increasing its vessels from 12 to 19 in the second quarter. However, despite the aggressive growth, IMPP reported a decline in revenue and earnings compared to the same period last year.
Moreover, Imperial Petroleum Inc. (NASDAQ:IMPP) announced a dividend of $0.546875 per share on its 8.75% Series A preferred shares last week, payable on September 30, 2025, to holders of record as of September 25, 2025.
5. Berry Corporation (NASDAQ:BRY)
Share Price Gains Between Sep 9 – Sep 16: 25.16%
Next on our list of Energy Stocks that Gained the Most This Week is Berry Corporation (NASDAQ:BRY), an independent energy company that engages in the acquisition, development, and production of domestic oil and gas reserves primarily in California and Utah.
Berry Corporation (NASDAQ:BRY) rallied this week following reports that the company is set to merge with California Resources in an all-stock deal valuing Berry at approximately $717 million, including debt. The announcement comes just days after lawmakers in California passed a bill to boost oil drilling in Kern County.
The transaction is expected to close in the first quarter of 2026, with California Resources shareholders owning about 94% of the combined company.
4. Energy Vault Holdings, Inc. (NYSE:NRGV)
Share Price Gains Between Sep 9 – Sep 16: 27.68%
Energy Vault Holdings, Inc. (NYSE:NRGV) develops and deploys utility-scale energy storage solutions in the United States, Australia, and internationally.
Energy Vault Holdings, Inc. (NYSE:NRGV) jumped this week after it was reported that the company’s CEO, Robert Piconi, has made a significant investment in NRGV by purchasing 50,000 shares of its stock. The transaction, valued at $115,000, reflects the chief executive’s confidence in the company’s future success.
Following the recent rally, the share price of Energy Vault Holdings, Inc. (NYSE:NRGV) has gained by an impressive 190% over the last six months.
3. Solaris Energy Infrastructure, Inc. (NYSE:SEI)
Share Price Gains Between Sep 9 – Sep 16: 29.09%
Solaris Energy Infrastructure, Inc. (NYSE:SEI) designs and manufactures specialized equipment for oil and natural gas operators in the United States.
Solaris Energy Infrastructure, Inc. (NYSE:SEI) jumped after a recent regulatory filing revealed that CEO William A. Zartler purchased 10,000 shares of the company’s stock, valuing the transaction at around $248,300. Moreover, the energy technology company’s CFO, Kyle S. Ramachandran, also acquired 2,000 shares of SEI for approximately $50,000.
The reports of SEI’s executives betting on the company’s success helped boost investor confidence, with the stock now having gained more than 50% over the last six months.
2. Oklo Inc. (NYSE:OKLO)
Share Price Gains Between Sep 9 – Sep 16: 29.55%
Backed by OpenAI’s Sam Altman, Oklo Inc. (NYSE:OKLO) develops advanced fission power plants to provide clean, reliable, and affordable energy at scale to customers in the United States.
Oklo Inc. (NYSE:OKLO) hit an all-time high this week after the company announced plans to design, build, and operate a facility in Tennessee to recycle used nuclear fuel into fuel for fast reactors like the company’s own Aurora powerhouse. The ambitious project is expected to cost $1.68 billion and will be the first of its kind in the United States.
Oklo Inc. (NYSE:OKLO) revealed that it has already completed a licensing project for the facility with the Nuclear Regulatory Commission and is currently in pre-application engagement with the regulator’s staff. The facility is anticipated to begin producing fuel for the company’s SMRs by the early 2030s.
1. New Fortress Energy Inc. (NASDAQ:NFE)
Share Price Gains Between Sep 9 – Sep 16: 42.86%
Topping our list of Energy Stocks that Gained This Week is New Fortress Energy Inc. (NASDAQ:NFE), which owns and operates natural gas and LNG infrastructure and an integrated fleet of ships and logistics assets to rapidly deliver turnkey energy solutions to global markets.
After plunging to an all-time low last week, New Fortress Energy Inc. (NASDAQ:NFE) jumped back after it was announced that the company had finally inked a $4 billion LNG contract with Puerto Rico. The 7-year agreement, with the option to extend for an additional three years, provides a much-needed boost to NFE, which has been struggling with mounting debt, delayed projects, and profitability challenges.
The agreement is now subject to approval by Puerto Rico’s Financial Oversight and Management Board.
While we acknowledge the potential of NFE to grow, our conviction lies in the belief that some AI stocks hold greater promise for delivering higher returns and have limited downside risk. If you are looking for an AI stock that is more promising than NFE and that has 100x upside potential, check out our report about this cheapest AI stock.
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