19 Registry return receipts were received by the Commission from the following: 1. 2. 3. 4. Apache Corporation;57 Marathon Oil Corporation;58 Conoco-Phillips Corporation;59 and Anglo-American Exploration.60 During the said conference, the Petitioners were asked to submit, by 11 January 2018, a list of their witnesses and electronic copies of all the documents which they intended to present for pre-marking. On 11 January 2018, the Petitioners filed a Motion for Extension of Time to Submit List of Witnesses and Other Documents, praying for an additional thirty days, or until 10 February 2018, to comply. On 19 March 2018, a Joint Summary of the Amicus Curiae Briefs61 was submitted by the briefers to the Inquiry Panel. B. Public Hearings The Inquiry Panel conducted the hearings in a dialogic, rather than adversarial manner. It operated on the principle of persuasion. While parties were given notices of the hearings, their participation was entirely voluntary. Indeed, as one of the Respondents subsequently manifested in the withdrawal of its Motion to Dismiss, it found no issue with the Commission proceeding with the Inquiry as a non-adversarial process.62 57 Received on 26 October 2017. 58 Received on 26 October 2017. 59 Received on 26 October 2017. 60 Received on 03 November 2017 with an indication that Anglo-American Exploration have gone away or moved from the address indicated in the Petition. 61 Submitted by the following organizations and individuals: Center for International Environmental Law (CIEL) (Erika Lennon, Carroll Muffett, Sébastien Duyck, Steven Feit & Lisa Hamilton); ClientEarth (Sophie Marjanac); Environmental Law Alliance Worldwide (ELAW) (Killian Doherty & Jennifer Gleason); Maastricht Principles Drafting Group (Kristine Perry); Our Children’s Trust (Elizabeth Brown & Danny Noonan); Plan B (Tim Crosland); Sabin Center for Climate Change Law, Columbia Law School (Michael Burger & Jessica Wentz); Asia Pacific Forum of National Human Rights Institutions & the Global Alliance of National Human Rights Institutions (Dr. Annalisa Savaresi & Dr. Ioana Cismas); Dr. James E. Hansen (Dan Galpern); and Dr. Kevin E. Trenberth. 62 Received on 8 December 2017.