Across
- 3. downstream but in reverse
- 6. Energy resource made commercially viable by George Mitchel
- 9. India's first oil well dug in 1866
- 11. solid ice-like substance which has gas molecules; reserves found off coast of Andhra Pradesh by ONGC
- 13. Fuel for the first steam engine
- 16. Simplest hydrocarbon with one carbon atom
- 17. offshore oilfield in West of India in Gulf of Cambay; Discovered by ONGC in early 70's
- 18. Indian oil producing PSU acquired by ONGC in 2017
- 19. Joint venture between ONGC, IL&FS, KIADB and KCCI on west coast of India
Down
- 1. HQ of ONGC
- 2. Ninth oil producing entity of India commercialised by ONGC in 2022
- 4. Iconic rig founded in 1973 given new life by ONGC in 2023
- 5. Method to penetrate bedrock using high pressure liquid
- 7. Clearer and greener alternative to fossil fuels
- 8. India's second largest petroleum company behind ONGC
- 10. Liquified remains of fauna
- 12. Adhesive viscous liquid of semi-solid; by-product of crude oil refining
- 14. PSU formed in 1984 out of ONGC which primarily deals in natural gas
- 15. 12 world class and technology institutes fostered by ONGC
- 17. ONGC is a......PSU (Hint: 9)