Rusdiantje, R. , Swadesi, B. and Suhascaryo, N. 2026. EVALUATION AND OPTIMIZATION OF NEW GAS WELL DEVELOPMENT TO ENHANCE PRODUCTION PERFORMANCE IN THE ANGGANA FIELD, PERTAMINA HULU INDONESIA ZONE 9, EAST KALIMANTAN. Jurnal Geosaintek. 11, 3 (Jan. 2026), 353–364. DOI:https://doi.org/10.12962/j25023659.v11i3.8996.