{"filing": {"accession": "0001493152-26-037629", "cik": "0001565146", "ticker": "GULTU", "company_name": "Gulf Coast Ultra Deep Royalty Trust", "form_type": "10-Q", "filing_type": "10-Q", "filing_date": "2026-08-13", "accepted_datetime": null, "acceptance_datetime": null, "accepted_at": null, "primary_doc_url": "https://www.sec.gov/Archives/edgar/data/1565146/000149315226037629/0001493152-26-037629-index.htm", "filing_url": "https://www.sec.gov/Archives/edgar/data/1565146/000149315226037629/0001493152-26-037629-index.htm", "period_of_report": "2026-06-30"}, "html_url": "/api/filings/000149315226037629/stream", "exhibits": [{"exhibit_number": "31", "exhibit_type": "31", "description": "Certification pursuant to Rule 13a-14(a)/15d-14(a)", "filename": "ex31.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/1565146/000149315226037629/ex31.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "32", "exhibit_type": "32", "description": "Certification pursuant to 18 U.S.C. Section 1350", "filename": "ex32.htm", "edgar_url": "https://www.sec.gov/Archives/edgar/data/1565146/000149315226037629/ex32.htm", "category": "other", "incorporated_by_reference": false}, {"exhibit_number": "3.1", "exhibit_type": "3", "description": "Composite Certificate of Trust of Gulf Coast Ultra Deep Royalty Trust", "filename": "", "edgar_url": "https://www.sec.gov/Archives/edgar/data/1565146/000156514613000012/exhibit312q13.htm", "category": "incorporation", "incorporated_by_reference": true}], "sections": [{"section_name": "part_1_item_1", "section_title": "Financial Statements:", "start_position": 3435, "end_position": 25455}, {"section_name": "part_1_item_2", "section_title": "Trustee\u2019s Discussion and Analysis of Financial Condition and Results of Operations", "start_position": 25455, "end_position": 46972}, {"section_name": "part_1_item_3", "section_title": "Quantitative and Qualitative Disclosures About Market Risk", "start_position": 46972, "end_position": 47158}, {"section_name": "part_1_item_4", "section_title": "Controls and Procedures", "start_position": 47158, "end_position": 49324}, {"section_name": "part_2_item_1", "section_title": "Legal Proceedings", "start_position": 49324, "end_position": 49441}, {"section_name": "part_2_item_1a", "section_title": "Risk Factors", "start_position": 49441, "end_position": 49782}, {"section_name": "part_2_item_5", "section_title": "Other Information", "start_position": 49782, "end_position": 50190}, {"section_name": "part_2_item_6", "section_title": "Exhibits", "start_position": 50190, "end_position": 51652}], "tables": [{"table_index": 2, "table_type": "text", "caption": null, "header_text": "Delaware46-6448579"}, {"table_index": 3, "table_type": "text", "caption": null, "header_text": "Large\n accelerated filer\u2610Accelerated\n filer\u2610"}, {"table_index": 5, "table_type": "financial", "caption": null, "header_text": "Page"}, {"table_index": 7, "table_type": "financial", "caption": null, "header_text": "June\n 30, 2026December\n 31, 2025"}, {"table_index": 9, "table_type": "financial", "caption": null, "header_text": "Three Months EndedSix Months Ended"}, {"table_index": 11, "table_type": "financial", "caption": null, "header_text": "Three Months EndedSix Months Ended"}, {"table_index": 16, "table_type": "text", "caption": null, "header_text": "DateAmount"}, {"table_index": 20, "table_type": "text", "caption": null, "header_text": "DateAmount"}, {"table_index": 25, "table_type": "exhibit_index", "caption": null, "header_text": "ExhibitFiled\n or Furnished\n with this FormIncorporated\n by Reference"}, {"table_index": 27, "table_type": "text", "caption": null, "header_text": "Gulf\n Coast Ultra Deep Royalty Trust"}], "exhibits_pending": false, "cdn_html": true, "response_time_ms": 35}