Which one among the following is NOT a major oil field located in Gujarat ?

Based on the provided geographical data, Moran is not located in Gujarat; it is a major oil field in the state of Assam [2]. Moran-Hugrijan was discovered in 1953 and is situated in the Brahmaputra valley, approximately 40 km southwest of Naharkatiya. In contrast, Ankaleshwar (or Ankleshwar), Kosamba, and Mehsana are all significant oil-producing regions within Gujarat [1]. Ankaleshwar is noted as the most important field in Gujarat, discovered in 1958 [2]. Other major fields in the Gujarat plains include Kalol, Nawgam, and Lunej [1]. While Gujarat is the second-largest onshore producing region in India, Assam remains the oldest oil-producing state, housing fields like Digboi and Moran [3]. Therefore, Moran is the correct answer as it belongs to the northeastern oil belt rather than the western Gujarat belt.

Sources

1. [1] INDIA PEOPLE AND ECONOMY, TEXTBOOK IN GEOGRAPHY FOR CLASS XII (NCERT 2025 ed.) > Chapter 5: Mineral and Energy Resources > Iron Ore > p. 59
2. [2] NCERT. (2022). Contemporary India II: Textbook in Geography for Class X (Revised ed.). NCERT. > Chapter 5: Print Culture and the Modern World > Petroleum > p. 115
3. [3] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 8: Energy Resources > Table 8.4 > p. 11