What is upstream oil?

Related questions

1. What does upstream mean in oil and gas?
2. Is ONGC upstream or downstream?
3. How many nucleotides are needed to code 10 amino acids?
4. Which direction is upstream?
5. What are downstream effects?
6. What is supply chain upstream and downstream?
7. What is the difference between upstream and downstream?
8. What is a promoter and is it located at the upstream?
9. What is upstream manufacturing?
10. What does going upstream mean?

Tags

1. #surface
2. #includes
3. #upstream
4. #exploratory
5. #subsequently
6. #wells
7. #industry
8. #sector
9. #drilling
10. #bring
11. #fields
12. #operating
13. #crude
14. #natural
15. #underwater
16. #petroleum
17. #underground
18. #potential
19. #searching
20. #recover