{"id":"analysis-horizontal-well-cycle-duration-cost-comparability-october-2026","canonicalSlug":"analysis-horizontal-well-cycle-duration-cost-comparability-october-2026","url":"https://wellficent.com/en/news/analysis-horizontal-well-cycle-duration-cost-comparability-october-2026","language":"en","title":"Horizontal well economics: compare the work before comparing days","summary":"Reported lateral length and elapsed days are useful descriptors, but cannot alone prove drilling efficiency or cost savings.","body":["Tamboran’s 25 September filing reports SS1-6H drilled and cemented to total depth in 32 days with a 9,505-foot usable lateral, and SS1-4H drilled to total depth in 24 days with a 9,329-foot lateral. The different wording matters: the reported endpoints are not demonstrably identical. These are well-level drilling milestones, not production-performance results.","Dividing usable lateral by the reported duration gives descriptive indices of about 297.03 and 388.71 feet per elapsed day. These are not bit rate-of-penetration measurements: elapsed time can include vertical sections, trips, casing and other operations. Different geology, depth, equipment or reporting boundaries can explain a difference. Two observations cannot establish a learning curve or causal improvement.","For a separate illustration, assume two otherwise comparable future jobs require the same work and one saves eight chargeable rig days. At assumed day rates of USD 25,000, 35,000 and 45,000, gross rig-time cost avoided is USD 200,000, 280,000 and 360,000. The chart applies this hypothetical eight-day saving, not a verified saving between the reported wells. Contracts may include minimum terms, mobilization and other fixed charges.","The decision must include completion cost, usable reservoir contact, test results, recovery and sales timing. A shorter drilling cycle can lose value if it reduces deliverability or adds remedial work. A defensible comparison uses consistent start and finish definitions, operation logs, chargeable time and matched geological scope. Without those inputs, no total cost per well, project return or statistically established productivity gain is estimated here."],"keyPoints":[],"sections":[],"text":"Horizontal well economics: compare the work before comparing days\n\nReported lateral length and elapsed days are useful descriptors, but cannot alone prove drilling efficiency or cost savings.\n\nTamboran’s 25 September filing reports SS1-6H drilled and cemented to total depth in 32 days with a 9,505-foot usable lateral, and SS1-4H drilled to total depth in 24 days with a 9,329-foot lateral. The different wording matters: the reported endpoints are not demonstrably identical. These are well-level drilling milestones, not production-performance results.\n\nDividing usable lateral by the reported duration gives descriptive indices of about 297.03 and 388.71 feet per elapsed day. These are not bit rate-of-penetration measurements: elapsed time can include vertical sections, trips, casing and other operations. Different geology, depth, equipment or reporting boundaries can explain a difference. Two observations cannot establish a learning curve or causal improvement.\n\nFor a separate illustration, assume two otherwise comparable future jobs require the same work and one saves eight chargeable rig days. At assumed day rates of USD 25,000, 35,000 and 45,000, gross rig-time cost avoided is USD 200,000, 280,000 and 360,000. The chart applies this hypothetical eight-day saving, not a verified saving between the reported wells. Contracts may include minimum terms, mobilization and other fixed charges.\n\nThe decision must include completion cost, usable reservoir contact, test results, recovery and sales timing. A shorter drilling cycle can lose value if it reduces deliverability or adds remedial work. A defensible comparison uses consistent start and finish definitions, operation logs, chargeable time and matched geological scope. Without those inputs, no total cost per well, project return or statistically established productivity gain is estimated here.\n\nTechnical and economic analysis\n\nAnalysis as of: 2026-10-08\n\nEvidence cutoff: 2026-10-08\n\nOutlook horizon: 2026–2027\n\nIllustrative sensitivity\n\nIllustrative rig-time cost avoided for eight days\n\nHypothetical eight chargeable days saved at three assumed day rates, with identical work scope; not observed well savings or total costs.\n\nThese calculations illustrate stated assumptions; they are not observations or a calibrated forecast.\n\nUSD 25,000/day: 200,000 USD\n\nUSD 35,000/day: 280,000 USD\n\nUSD 45,000/day: 360,000 USD","category":"energy","region":"world","topics":["horizontal-wells","drilling","cost-analysis","beetaloo"],"eventDate":"2026-10-08","eventDateBasis":"analysis-as-of-date","publishedAt":"2026-10-08T13:39:44Z","modifiedAt":"2026-10-08T13:39:44Z","publicationBasis":"first-publication","preparedAt":"2026-10-08T13:27:33Z","sourcePublishedAt":"2026-09-25","translatedAt":null,"sources":[{"name":"Tamboran Resources — SEC filing","url":"https://ir.tamboran.com/sec-filings/all-sec-filings/content/0001628280-26-063490/a260926fourthquarterfy26.htm","publishedAt":"2026-09-25","checkedAt":"2026-10-08"}],"translations":{"en":"https://wellficent.com/en/news/analysis-horizontal-well-cycle-duration-cost-comparability-october-2026","tr":"https://wellficent.com/tr/news/analysis-horizontal-well-cycle-duration-cost-comparability-october-2026","ar":"https://wellficent.com/ar/news/analysis-horizontal-well-cycle-duration-cost-comparability-october-2026","fr":"https://wellficent.com/fr/news/analysis-horizontal-well-cycle-duration-cost-comparability-october-2026","es":"https://wellficent.com/es/news/analysis-horizontal-well-cycle-duration-cost-comparability-october-2026","ru":"https://wellficent.com/ru/news/analysis-horizontal-well-cycle-duration-cost-comparability-october-2026","pt":"https://wellficent.com/pt/news/analysis-horizontal-well-cycle-duration-cost-comparability-october-2026"},"corrections":[],"locations":[{"id":"country-au","type":"country","countryCode":"AU","name":{"en":"Australia","tr":"Avustralya","ar":"أستراليا","fr":"Australie","es":"Australia","ru":"Австралия","pt":"Austrália"},"context":{"en":"Country identified in the primary source; no site coordinates asserted.","tr":"Birincil kaynakta belirtilen ülke; saha koordinatı iddiası yok.","ar":"البلد المحدد في المصدر الأصلي؛ لا ندعي إحداثيات موقع.","fr":"Pays identifié dans la source primaire; aucune coordonnée de site affirmée.","es":"País identificado en la fuente primaria; no se afirman coordenadas del sitio.","ru":"Страна указана в первоисточнике; координаты площадки не заявлены.","pt":"País identificado na fonte primária; não se afirmam coordenadas do local."},"source":{"name":"Tamboran Resources — SEC filing","url":"https://ir.tamboran.com/sec-filings/all-sec-filings/content/0001628280-26-063490/a260926fourthquarterfy26.htm","publishedAt":"2026-09-25","checkedAt":"2026-10-08"}}],"type":"analysis","analysis":{"kind":"technical-economic","asOf":"2026-10-08","evidenceCutoff":"2026-10-08","horizon":"2026–2027","chart":{"kind":"illustrative","title":{"en":"Illustrative rig-time cost avoided for eight days","tr":"Sekiz gün için örnek kaçınılan kule zamanı maliyeti","ar":"تكلفة وقت جهاز الحفر المتجنبة افتراضياً لثمانية أيام","fr":"Coût de temps de forage évité pour huit jours hypothétiques","es":"Coste ilustrativo de equipo evitado por ocho días","ru":"Условные избегаемые затраты установки за восемь суток","pt":"Custo ilustrativo de sonda evitado por oito dias"},"unit":"USD","unitLabel":{"en":"USD","tr":"USD","ar":"دولار أمريكي","fr":"USD","es":"USD","ru":"USD","pt":"USD"},"note":{"en":"Hypothetical eight chargeable days saved at three assumed day rates, with identical work scope; not observed well savings or total costs.","tr":"Aynı iş kapsamıyla üç varsayılan günlük bedelde sekiz ücretli gün tasarrufu; gözlenmiş kuyu tasarrufu veya toplam maliyet değildir.","ar":"توفير افتراضي لثمانية أيام مفوترة بثلاثة أسعار يومية مفترضة ونطاق عمل متماثل؛ ليس وفراً مقاساً أو تكلفة كلية.","fr":"Huit jours facturables économisés hypothétiquement, trois tarifs supposés et travaux identiques; ni économies observées ni coûts totaux.","es":"Ocho días facturables ahorrados hipotéticamente con tres tarifas supuestas y trabajo idéntico; no son ahorros observados ni costes totales.","ru":"Условная экономия восьми оплачиваемых суток при трёх ставках и одинаковой работе; не наблюдаемая экономия и не полные затраты.","pt":"Oito dias faturáveis poupados hipoteticamente, três diárias supostas e trabalho idêntico; não são poupanças observadas nem custos totais."},"rows":[{"value":200000,"label":{"en":"USD 25,000/day","tr":"25.000 USD/gün","ar":"25,000 دولار/يوم","fr":"25 000 USD/jour","es":"25.000 USD/día","ru":"25 000 USD/сутки","pt":"25.000 USD/dia"}},{"value":280000,"label":{"en":"USD 35,000/day","tr":"35.000 USD/gün","ar":"35,000 دولار/يوم","fr":"35 000 USD/jour","es":"35.000 USD/día","ru":"35 000 USD/сутки","pt":"35.000 USD/dia"}},{"value":360000,"label":{"en":"USD 45,000/day","tr":"45.000 USD/gün","ar":"45,000 دولار/يوم","fr":"45 000 USD/jour","es":"45.000 USD/día","ru":"45 000 USD/сутки","pt":"45.000 USD/dia"}}]}}}