E&P contracting brief: Part II – 23 Sep 2025

1) Wireline logging, perforation, TCP-DST, compact logging and well intervention services for offshore and onshore: An update8The pre-bid round nudged only where it had to: preventive maintenance is now time-capped, but penalties elsewhere got sharper.

Bidders wanted split awards and base clarity; ONGC kept the line and told them to price the risk.

The playbook is cost discipline with bounded maintenance downside, not a re-write of the contract.

2) ONGC hardwires a single-source-of-truth SOW and adds a 25% option clause in WON Basin IT upgrade8The buyer has replaced the entire SOW stack with a corrigendum that trumps every other annex.

That cleans up precedence but raises the execution bar: OEM-only installation, DR replication and SIEM integration are non-negotiable.

The option clause keeps procurement elastic while acceptance tests make performance the real gate.

3) OIL Mahanadi coring tender: An update8Oil India has recast when the contract “starts,” switching the effective date to mobilization milestones.

A 25% option on quantity or duration adds procurement elasticity while shifting volume risk to vendors.

With the bid window now running to 30 September 2025, participation depth and DS-1-ready capacity will decide the pricing arc.