YPF S.A. (NYSE: YPF) defeats $16bn claim as Second Circuit affirms dismissal in landmark Argentina expropriation case

YPF S.A. (NYSE: YPF), Argentina’s largest integrated energy producer, has secured a definitive appellate victory in one of the most consequential sovereign-expropriation disputes ever litigated in United States federal courts. On March 27, 2026, the U.S. Court of Appeals for the Second Circuit affirmed the dismissal of all breach of contract claims against YPF, extinguishing exposure to more than $16 billion in combined damages and accrued interest. The ruling reverses the separate district-court judgment against the Republic of Argentina, resolving over a decade of litigation that stemmed from Argentina’s 2012 nationalisation of a controlling stake in YPF. For YPF shareholders and the Milei administration, the outcome removes what had been the single largest outstanding legal liability overhanging the company and, by extension, Argentina’s effort to attract foreign capital into its vast Vaca Muerta shale formation.

How did the Second Circuit reach its decision to dismiss all claims against YPF and reverse judgment against Argentina?

The case traces its origin to the Argentine government’s 2012 expropriation of a 51 percent stake in YPF from Repsol, executed through emergency legislation rather than an open-market tender offer. Petersen Energia Inversora S.A.U. and Petersen Energia S.A.U., together with Eton Park Capital Management and related funds, argued that YPF’s corporate bylaws required the company to compel the government to conduct a tender offer for minority shareholders before completing the takeover. They sought compensation for the resulting economic harm, with litigation funder Burford Capital underwriting the plaintiffs’ case from the outset.

After motions to dismiss were denied and affirmed in earlier proceedings, Debevoise & Plimpton LLP assumed YPF’s defence in December 2020. Following nearly two years of discovery involving more than a dozen expert witnesses, all parties cross-moved for summary judgment in 2022. In 2023, the U.S. District Court for the Southern District of New York granted YPF’s motion in full, accepting the Debevoise argument that YPF had no bylaw obligation either to compel the Republic to conduct a tender offer or to prevent the Republic from exercising corporate governance powers associated with the expropriated shares. The same district court found against Argentina on a separate basis and entered a judgment exceeding $16 billion against the Republic following a three-day bench trial in September 2023.

The Second Circuit’s March 27 ruling settles the appellate picture decisively in YPF’s favour. A two-judge majority determined that the plaintiffs’ breach of contract damages claims against both YPF and Argentina were not cognizable under Argentine law, and that YPF bore no contractual obligations of the kind the plaintiffs had alleged. The ruling effectively reverses the financial judgment against Argentina as well, though Judge Jose Cabranes dissented and would have upheld the district court’s findings. The case was argued before the Second Circuit panel on October 29, 2025, and the decision arrived five months later.

What does the Second Circuit’s YPF ruling mean for Argentina’s sovereign liability exposure and foreign investor protections?

The judgment against Argentina at district level had attracted significant international attention because it threatened to create an enforcement mechanism for foreign investors against a sovereign state that had already undergone multiple debt restructurings. A $16 billion liability would have ranked among the largest ever entered against a sovereign government in a U.S. court, and the prospect of asset seizure through cross-border enforcement complicated Argentina’s already constrained access to international capital markets. The Second Circuit’s reversal on the question of Argentine law cognizability removes that specific threat, though the court’s majority opinion noted the Republic’s conduct in the underlying expropriation in terms that leave the broader reputational damage to Argentina’s standing with foreign investors largely intact.

Argentine President Javier Milei described the outcome as the greatest legal achievement in national history, a reaction that reflects both the scale of the avoided liability and the administration’s broader focus on repositioning Argentina as a credible destination for foreign direct investment. The Milei government has staked considerable political capital on unlocking Vaca Muerta’s shale potential, which requires sustained inflows from international energy majors and capital markets. A $16 billion judgment lingering over YPF would have complicated debt issuance, deterred equity participation, and created unpredictable cross-default risk in Argentina’s sovereign and quasi-sovereign debt instruments.

The case also raises structural questions about the reliability of contractual protections for minority shareholders in companies where a sovereign state is the controlling entity. The Second Circuit majority’s conclusion that the claims were not cognizable under Argentine law will be read carefully by legal practitioners and investors who rely on bylaw provisions and shareholder agreements as protective instruments in jurisdictions where state intervention remains a political possibility. That reading cuts in both directions: it limits plaintiffs’ recourse in U.S. courts but equally affirms that contractual obligations must be assessed through the lens of the governing national law rather than through the presumptions of U.S. corporate practice.

How has the YPF Second Circuit ruling affected Burford Capital and the litigation finance industry’s exposure to sovereign risk?

Burford Capital, which funded the Petersen and Eton Park claims and had significant financial exposure tied to the outcome, suffered a sharp market reaction following the ruling. Burford Capital’s stock fell approximately 46 percent in the immediate aftermath of the Second Circuit decision, representing one of the largest single-day declines in the company’s history. Chief Executive Christopher Bogart characterised the ruling as a disappointment and described the court’s decision as an abandonment of minority shareholder rights. Burford has indicated it expects the plaintiffs to seek rehearing en banc by the full Second Circuit, though it acknowledged that such requests are rarely granted as a statistical matter. The plaintiffs have 14 days from the ruling to file a petition for rehearing, after which the question of a further appeal to the Supreme Court of the United States remains open.

The Burford outcome underscores a structural risk embedded in high-stakes litigation finance: the asymmetric exposure of a funder that has committed substantial capital to a case over many years and then faces a decisive adverse ruling at the appellate stage. The YPF litigation had been on Burford’s books since 2015, and the capital deployed plus the opportunity cost of that commitment represents a material write-down. The case will likely prompt institutional investors in litigation finance vehicles to reassess the risk premium attached to sovereign-counterparty cases, particularly those that depend on novel legal theories applied across multiple jurisdictions. Whether Burford pursues Supreme Court review will depend on its assessment of both legal probability and the cost-benefit calculus of prolonging a case that has now been definitively decided at the Second Circuit level.

What is the current YPF stock price reaction and what does the market movement signal about investor sentiment after the ruling?

YPF shares on the New York Stock Exchange responded positively to the ruling. The stock rose approximately 6.5 percent on March 28, 2026, trading as high as $46.24 and closing at approximately $46.53, against a previous close of $43.68. The day’s intraday high of $46.99 also represents the stock’s 52-week high, a technically significant threshold given that YPF traded as low as $22.82 as recently as September 19, 2025. The move came on elevated volume of approximately 2.27 million shares, an 18 percent increase over the 10-day average of around 3.32 million shares, suggesting the ruling triggered genuine institutional buying rather than purely retail-driven momentum.

The market context adds nuance to the reaction. Over the preceding week, YPF shares had already climbed from approximately $41.20 to $45.90 ahead of the ruling, implying some degree of pre-positioning. The consensus analyst community remains broadly constructive on YPF’s medium-term outlook, with the average 12-month price target sitting near $49.80 and the majority of rated analysts recommending the stock as a buy. However, two vice presidents disclosed open-market sales of significant share packages in mid-to-late March at prices around $43.60, a detail that, while not unusual at the individual level, adds a note of caution to the otherwise positive picture. The stock’s 50-day moving average of approximately $38.19 and 200-day moving average near $34.40 confirm that the underlying price trend had turned constructive well before the appellate decision landed.

Morningstar’s quantitative model places fair value for YPF at approximately $75.92, suggesting substantial upside from current prices on a fundamental basis. The forward price-to-earnings ratio of approximately 36 times reflects market expectations of a significant earnings recovery, consistent with analysts’ aggregate forecast of around $7.25 in earnings per share for the current fiscal year. Against the backdrop of a company that reported a loss per share of $1.67 in the most recent quarter, the gap between trailing and forward earnings multiples illustrates how heavily the market is discounting operational improvement driven by Vaca Muerta expansion and Milei-era economic normalisation.

What are the strategic implications of this legal victory for YPF’s Vaca Muerta ambitions and Argentina’s investment climate?

The removal of the $16 billion liability overhang has direct implications for YPF’s balance sheet optionality and its capacity to execute the capital-intensive development programmes required to scale Vaca Muerta output. YPF’s debt-to-equity ratio stands at approximately 0.77, which is manageable but not unrestricted, and the company has been actively engaged in liability management, repurchasing outstanding notes in early 2026 ahead of scheduled maturities. With the legal cloud lifted, YPF’s access to international debt markets should improve at the margin, potentially reducing the cost of capital for infrastructure and drilling programmes that require multi-year commitments from joint venture partners.

For Argentina as a whole, the ruling arrives at a strategically useful moment. The Milei government is pursuing one of the most ambitious economic liberalisation programmes in the country’s modern history, including deregulation of energy pricing, foreign exchange reform, and efforts to attract major international oil and gas operators to Vaca Muerta. A $16 billion judgment against a state-controlled energy company would have created a direct conflict with that investment narrative. The reversal removes that contradiction, though it does not erase the underlying concerns about Argentina’s institutional reliability that made the 2012 expropriation possible in the first place. Foreign investors with long memories will continue to price sovereign risk into their return expectations for Argentine assets regardless of today’s ruling.

YPF’s internal governance agenda also intersects with the legal outcome. The company approved an internal merger to absorb two subsidiary entities in March 2026 and announced a board change for Class D shares, moves consistent with a broader organisational simplification that management has been pursuing alongside the Milei government’s privatisation and efficiency agenda. The legal resolution enables management to focus attention and resources on operational execution rather than litigation contingency planning, which had introduced layers of strategic uncertainty into capital allocation decisions.

Is the YPF litigation entirely resolved or can Petersen and Eton Park pursue further legal remedies in U.S. or international courts?

The Second Circuit ruling is not necessarily the final word. Under U.S. federal procedure, the plaintiffs have 14 days to petition the full Second Circuit for rehearing en banc, which would require a majority of active judges on the circuit to agree to reconsider the panel decision. Burford Capital has indicated it expects that petition to be filed, while acknowledging the statistical rarity of en banc grants. If en banc review is denied, the next avenue would be a petition for certiorari to the U.S. Supreme Court, a process that introduces further delay and uncertainty, though the Supreme Court accepts fewer than two percent of certiorari petitions filed annually. Separately, Burford has referenced parallel arbitration proceedings as a remaining avenue, suggesting the dispute may have additional dimensions outside the S.D.N.Y. forum that are not fully resolved by the Second Circuit’s ruling.

The dissent by Judge Cabranes, who would have upheld the district court judgment, will feature prominently in any en banc or certiorari petition. A dissent from a senior Second Circuit judge creates a legal record that courts of review can reference in assessing whether the panel majority reached the correct outcome. For YPF and Argentina, the practical effect of a successful en banc petition or Supreme Court grant would be to revive, at minimum, the procedural and substantive questions the Second Circuit majority resolved in their favour. That risk, while reduced, has not been entirely eliminated, and YPF’s advisers will be monitoring the plaintiffs’ next filings closely.

Key takeaways: What the YPF Second Circuit ruling means for Argentina, energy investors, and litigation finance markets

• The U.S. Court of Appeals for the Second Circuit has fully affirmed the dismissal of all breach of contract claims against YPF S.A., eliminating more than $16 billion in potential damages exposure in a case that had been pending since 2015.
• The ruling simultaneously reverses the separate district court judgment against the Republic of Argentina, removing a $16 billion sovereign liability that had complicated the country’s access to international capital markets under the Milei administration.
• YPF shares surged approximately 6.5 percent on March 28, 2026, touching a new 52-week high of $46.99, as markets priced out the litigation overhang and reaffirmed constructive views on Vaca Muerta upside potential.
• Burford Capital, the litigation funder backing Petersen and Eton Park, suffered a reported 46 percent share price decline following the ruling, illustrating the asymmetric risk inherent in sovereign-counterparty litigation finance commitments.
• The Second Circuit’s decision, reached by a 2-1 majority with Judge Cabranes dissenting, rests on Argentine law cognizability grounds, meaning the plaintiffs’ breach of contract claims were not legally recognisable under the applicable national law framework.
• The dispute is not entirely closed: plaintiffs have 14 days to seek en banc rehearing, and Burford has referenced parallel arbitration proceedings as a remaining avenue, leaving residual legal uncertainty that advisers will continue to monitor.
• The outcome significantly improves YPF’s balance sheet optionality, reducing the probability of forced asset disposals or emergency capital raises that would have been required to fund any adverse judgment enforcement.
• For Argentina’s broader investment narrative, the ruling removes a high-profile negative signal at a critical moment when the Milei government is actively courting international energy majors and capital market participants for Vaca Muerta development financing.
• The case establishes important precedent for litigation practitioners and minority shareholders in companies controlled by sovereign states, clarifying that bylaw-based protections must be assessed through the governing national law rather than U.S. corporate law assumptions.
• Debevoise & Plimpton’s defence strategy, particularly the summary judgment argument that YPF bore no obligation to compel a tender offer or constrain the Republic’s corporate governance powers, proved determinative at both the district and appellate levels.