| Public-law entity | |
| Industry | Oil and gas |
| Successor | Repsol |
| Founded | December 28, 1980 |
| Defunct | June 16, 1995 |
| Headquarters | Madrid, Spain |
|
Area served
|
Nationwide |
|
Key people
|
|
| Parent | Ministry of Industry and Energy |
The National Hydrocarbons Institute (Spanish: Instituto Nacional de Hidrocarburos, INH) was a Spanish state-owned oil and gas company established through Law 45/1981, to manage the business-related activities of the petroleum industry in the country.