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Petroleum Resources: Barmer-Sanchore Basin and Pachpadra Refinery
Rajasthan's Petroleum Potential
Rajasthan's sedimentary basins span 1,50,000 sq km across four geological basins:
- Barmer-Sanchore Basin — Western Rajasthan; the only producing basin.
- Jaisalmer Basin — Gas-producing; mainly natural gas.
- Bikaner-Nagaur Basin — Potential; limited exploration.
- Vindhyan Basin — South-eastern Rajasthan; early exploration stage.
Rajasthan contributes 14.95% of India's total onshore crude oil production — 4.39 MMTPA out of India's 29.36 MMTPA total onshore crude production. This makes Rajasthan the second largest onshore oil-producing state after Gujarat. Source: Rajasthan Economic Review 2025-26, Chapter 5.
Barmer-Sanchore Basin: Fields and Operators
The Barmer basin was discovered commercially in 2004 when Cairn India (now Vedanta Ltd. after acquisition in 2011) struck oil at the Mangala field. Production from Mangala commenced in August 2009, marking the beginning of Rajasthan's petroleum era.
Major producing fields (Block RJ-ON-90/1, operated by Vedanta Ltd.):
| Field | Discovery Year | Daily Production (approx.) | Characteristics |
|---|---|---|---|
| Mangala | 2004 | Largest contributor | Waxy crude; requires heating for transport |
| Bhagyam | 2006 | Second largest | High wax content |
| Aishwarya | 2006 | Significant contributor | Medium weight crude |
| Shakti, Saraswati, Kameshwari, Others | Various | Combined contribution | Total 15 fields in the block |
Total Barmer crude production: 66,000–67,000 barrels/day (bopd) from 15 operational fields.
Source: Rajasthan Economic Review 2025-26, Chapter 5; Vedanta Ltd. operational reports
Revenue sharing: Under the Production Sharing Contract (PSC) signed with Government of India in 1995 (modified subsequently), the state of Rajasthan receives a royalty of 20% on crude oil — a significantly higher rate than onshore fields elsewhere in India (which are typically 12.5-20%). This petroleum royalty constitutes a meaningful source of state government revenue.
The crude from Barmer is waxy crude (high pour-point), requiring heated insulated pipelines for transport. A dedicated heated pipeline connects the Mangala Processing Terminal (MPT) at Mangala to the Salaya-Mathura Pipeline injection point near Jodhpur.
Natural Gas Production
Rajasthan also produces natural gas from two basins:
| Basin | Daily Production |
|---|---|
| Barmer (associated gas) | 2.70–2.80 MMSCM/day |
| Jaisalmer (ONGC fields) | 0.81–0.87 MMSCM/day |
| Total | 3.50–3.70 MMSCM/day |
Source: Rajasthan Economic Review 2025-26, Chapter 5
Jaisalmer's natural gas (ONGC's Tanot and Dandewala fields, discovered 1988) supplies gas to Jaisalmer town and for state industrial use. The gas is predominantly associated gas from oil fields in Barmer and free gas from Jaisalmer limestone reservoirs.
Pachpadra Refinery: Rajasthan's Most Significant Industrial Project
The Rajasthan Refinery at Pachpadra (Barmer district) is the single largest ongoing industrial project in Rajasthan's history, and one of the most significant public-sector industrial investments in India.
Key facts:
| Parameter | Detail |
|---|---|
| Name | Rajasthan Refinery (also: HPCL-Rajasthan Refinery Ltd.) |
| Location | Pachpadra, Barmer district |
| Capacity | 9 MMTPA (Million Metric Tonnes Per Annum) |
| Promoters | HPCL (74%) + Government of Rajasthan (26%) through RPCL (Rajasthan Petroleum Corporation Ltd.) |
| Project SPV | HPCL-Rajasthan Refinery Limited (HRRL) |
| Total project cost (work orders) | ₹71,509 crore |
| Expenditure (as of 2024-25) | ₹52,332.50 crore (~73% of total) |
| Physical completion | 84% |
| Workforce engaged | 24,000+ |
| Foundation stone | October 2018 (PM Modi) |
| Expected commissioning | 2026-27 (revised target) |
Source: Rajasthan Economic Review 2025-26, Chapter 5
Why Pachpadra?
- Proximity to Barmer crude fields (pipeline distance minimized).
- Water availability from Narmada Canal (IGNP-linked) for refinery cooling.
- Land acquired by RIICO for the refinery complex and associated township.
Products after commissioning: Petrol (Euro VI grade), diesel (Euro VI grade), Aviation Turbine Fuel (ATF), LPG, naphtha, bitumen, petrochemical feedstocks (propylene, LSHS).
Economic impact of commissioning: The refinery will process the bulk of Barmer's 4.39 MMTPA crude (plus imported crude via pipeline to meet 9 MMTPA capacity), create 2,500+ permanent jobs, generate substantial SGST revenue for Rajasthan, and seed a downstream petrochemical cluster in western Rajasthan.
Policy history: The refinery was announced in 2013 (UPA era), equity structure finalized in 2016, and construction commenced after land acquisition in 2017-18. Delays were caused by equity contribution disputes, pipeline alignment issues, and COVID-19 (2020-21).