{"id":17511,"date":"2026-09-09T17:11:38","date_gmt":"2026-09-09T15:11:38","guid":{"rendered":"https:\/\/www.iisd.org\/itn\/?p=17511"},"modified":"2026-09-09T17:11:38","modified_gmt":"2026-09-09T15:11:38","slug":"netherlands-faces-new-treaty-claim-as-petrogas-challenges-windfall-levy-and-royalty-increases","status":"publish","type":"post","link":"https:\/\/www.iisd.org\/itn\/2026\/09\/09\/netherlands-faces-new-treaty-claim-as-petrogas-challenges-windfall-levy-and-royalty-increases\/","title":{"rendered":"Netherlands Faces New Treaty Claim as Petrogas Challenges Windfall Levy and Royalty Increases"},"content":{"rendered":"<p>An arbitration brought by Omani investor Petrogas E&amp;P against the Netherlands, first <a href=\"https:\/\/www.iareporter.com\/articles\/revealed-the-netherlands-is-involved-in-treaty-arbitration-over-solidarity-contribution\/\">revealed<\/a> in November 2025, took clearer shape in 2026. According to a ministerial <a href=\"https:\/\/www.transnational-dispute-management.com\/legal-and-regulatory-detail.asp?key=37999\">letter<\/a> sent to the Dutch Parliament on May 18, 2026, Petrogas requested arbitration on May 28, 2025 under the Netherlands-Oman <span class='tooltipsall tooltipsincontent classtoolTips63'>BIT<\/span>, alleging that the temporary solidarity contribution levied on 2022 windfall profits, implementing <span class='tooltipsall tooltipsincontent classtoolTips117'>EU<\/span> Regulation 2022\/1854, and the temporary increase of royalties under the Mining Act for 2023 and 2024 breach the treaty. The tribunal has been constituted and adopted its first procedural order on March 29, 2026; the case proceeds under the 2010 <span class='tooltipsall tooltipsincontent classtoolTips3'>UNCITRAL<\/span> Rules with the <a href=\"https:\/\/pca-cpa.org\/en\/cases\/376\/\">Permanent Court of Arbitration<\/a> administering (<span class='tooltipsall tooltipsincontent classtoolTips77'>PCA<\/span> Case No. 2025-47). Civil society groups have <a href=\"https:\/\/www.somo.nl\/petrogas-sues-the-netherlands-over-fiscal-measures-meant-to-protect-the-public-interest\/\">condemned<\/a> the claim as an attack on crisis-response taxation. It is at least the third pending <span class='tooltipsall tooltipsincontent classtoolTips43'>ISDS<\/span> case against the Netherlands, alongside the <a href=\"https:\/\/www.iisd.org\/itn\/2026\/01\/19\/aftershock-in-groningen-shell-exxonmobil-arbitration-cases-against-the-netherlands-bart-jaap-verbeek\/\">Groningen claims<\/a>, and parallels the <a href=\"https:\/\/www.iisd.org\/itn\/2025\/01\/27\/overview-recent-fossil-fuel-arbitration-cases-under-energy-charter-treaty-clementine-baldon-rosanne-craveia\/\">Klesch arbitrations<\/a> against Germany, Denmark, and the EU over the same levy, confirming windfall taxation as a new front in investor-state litigation.<\/p>\n<script type=\"text\/javascript\"> toolTips('.classtoolTips3','United Nations Commission on International Trade Law'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips32','International Institute for Sustainable Development<!--more-->'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips33','Institut international du d\u00e9veloppement durable'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips34','Instituto Internacional para el Desarrollo Sostenible'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips43','investor\u2013state dispute settlement'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips58','soluci\u00f3n de controversias inversionista-Estado'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips60','Investment Treaty News'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips63','Bilateral investment treaty'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips65','East African community'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips67','Energy Charter Treaty'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips77','Permanent Court of Arbitration'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips83','Cour permanente d\u2019arbitrage'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips84','Corte Permanente de Arbitraje'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips100','investissement direct \u00e9tranger'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips104','responsabilit\u00e9 sociale des entreprises'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips110','inversi\u00f3n extranjera directa'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips114','Sistema de Tribunales de Inversiones'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips116','European Commission'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips117','European Union'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips118','Union europ\u00e9enne'); <\/script><script type=\"text\/javascript\"> toolTips('.classtoolTips119','Uni\u00f3n Europea'); <\/script>","protected":false},"excerpt":{"rendered":"<p>An arbitration brought by Omani investor Petrogas E&#038;P against the Netherlands, first revealed in November 2025, took clearer shape in 2026.<script type=\"text\/javascript\"> toolTips('.classtoolTips63','Bilateral investment treaty'); <\/script><\/p>\n","protected":false},"author":34,"featured_media":17512,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[397],"tags":[1900],"class_list":["post-17511","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-current-issue"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/posts\/17511","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/users\/34"}],"replies":[{"embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/comments?post=17511"}],"version-history":[{"count":1,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/posts\/17511\/revisions"}],"predecessor-version":[{"id":17515,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/posts\/17511\/revisions\/17515"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/media\/17512"}],"wp:attachment":[{"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/media?parent=17511"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/categories?post=17511"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.iisd.org\/itn\/wp-json\/wp\/v2\/tags?post=17511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}