Hindustan Oil Exploration Clarifies PY-1 Offshore Drilling Plans in Cauvery Basin

Hindustan Oil Exploration Company has officially clarified that its active development proposal involves drilling four additional wells within the existing PY-1 offshore block.

Operational Scope and Regulatory Framework

According to official regulatory filings released by Hindustan Oil Exploration Company Limited (HOEC) on August 19, 2026, the current proposal focuses strictly on executing development drilling within the pre-existing boundaries of the PY-1 Offshore Block located in the Cauvery Basin. Company statements emphasize that this initiative does not constitute expansion into any new exploration acreage.

The proposed program entails sinking four additional development wells to subsurface reservoir targets positioned approximately 3 to 4 kilometers beneath the seabed. All designated coordinates and operational methodologies were finalized following extensive geological, geophysical, seismic, and reservoir-engineering analyses conducted by internal technical experts.

Background and Production Objectives

The PY-1 field stands as one of India's pioneering offshore non-associated natural gas assets featuring an unconventional fractured granitic basement reservoir. Operating continuously since April 2006, the infrastructure includes the unmanned SUN wellhead platform linked via a 56-to-57-kilometer subsea pipeline to an onshore processing facility situated in Tamil Nadu.

Over recent years, the field has experienced natural reservoir depletion. Consequently, the core objective of the four new development wells is to restore and re-establish natural gas production back toward originally sanctioned peak capacity levels.

Official Compliance and Safety Standards

Company disclosures confirm that the development scheme is being advanced in strict alignment with the approved Field Development Plan. Regulatory oversight is maintained through statutory clearances issued by the Directorate General of Hydrocarbons (DGH) and the Ministry of Petroleum and Natural Gas (MoPNG), Government of India.

"The proposed development programme is being progressed in accordance with the Field Development Plan and relevant approvals of the Directorate General of Hydrocarbons and the Ministry of Petroleum and Natural Gas, Government of India," stated Hindustan Oil Exploration Company in its official stock exchange notification.

Furthermore, offshore operations utilize established drilling technologies backed by mandatory environmental safeguards, statutory safety audits, and adherence to standard oil and gas industry protocols.

Key Facts at a Glance

• Project Scope: Drilling of four additional development wells.

• Asset Location: Existing PY-1 Offshore Block within the Cauvery Basin.

• Regulatory Oversight: Governed by approvals from the DGH and the Ministry of Petroleum and Natural Gas.

• Primary Objective: Counteracting natural reservoir depletion to restore original production benchmarks.

Frequently Asked Questions

Does the proposal involve exploring a new offshore territory?

No. Company clarifications explicitly state that the initiative targets development wells confined strictly within the boundaries of the already established and producing PY-1 Field.

What is the primary purpose of the new wells?

The wells are intended to restore natural gas production levels toward previously sanctioned thresholds following natural reservoir depletion.

Which regulatory bodies have authorized the program?

The development program progresses under official guidelines and approvals sanctioned by the Directorate General of Hydrocarbons and the Ministry of Petroleum and Natural Gas.

How deep will the new development wells go?

The technical specifications project subsurface reservoir targets located approximately 3 to 4 kilometers beneath the seabed.

Source: Hindustan Oil Exploration Company Limited - NSE Regulatory Filing, HOEC Official Cauvery Basin Asset Portfolio