Nearly 50% of the total offshore fleet is owned by Great Offshore in India followed by Tag Sea Logistics and ONGC. The top owners of the foreign-flagged vessels operating in Indian waters are Tidewater Marine, Britoil Offshore, Eastern Navigation, Bourbon Offshore Posh Semco and SBS Marine.

Existing Offshore Support Vessels- East Coast

The existing offshore space on the east coast of India is dominated by ONGC and Reliance which are the main block owners, followed by Cairn Energy India Pvt. Ltd., Hercules Ltd., Hardy Oil and Gas plc and Hindustan Oil and Exploration Corporation (HOEC). Most of the offshore installations on the east coast comprise of drill ships, Jackup rigs and few platforms. ONGC is operating in KG basin with nine installations, Reliance is operating in Cauvery basin with three, Cairn Energy and Hardy are operating with one installation each in KG basin and Pondicherry waters respectively.

In total 15 rigs and 2 platforms on the east coast are being served by the Offshore Support Vessels. The split by types of Offshore Support Vessels (OSVs) plying on the east coast are as below.

Typically, 2 OSVs cater to the requirement of a Rig or Platform. If the installations are close by i.e. within 50 miles then 3 vessels could serve 2 offshore installations. The following table captures the details for the offshore support vessels plying on the east coast.

Charterer	Type of Offshore Installation	Ownership Type	Name of the OSVs	Age of the OSVs (Years)	OSVs
Reliance Industries Ltd.	3 Drillships	3 Contract Rigs	Malaviya 29	3-4	2 AHTs, 6 PSVs
			Bourbon Agathi	3-4
			SMS ABLE	3-4
			Olympic Canyon	3-4
			Baurbon Hamelin	3-4
			Lewek Merlin	3-4
			Lewek Atria	3-4
			Baurbon Himalaya	3-4
ONGC	5 Drillships, 3 Jackup Rigs, 1 semi-submersible	6 Contract Rigs and 3 Owned Rigs	SCI -02	20-25	8 PSVs, 5 OSVs, 3 AHTSVs
			SCI -05	20-25
			SCI -03	20-25
			SCI -01	20-25
			Malaviya 10	10-15
			Malaviya 21	10-15
			Malaviya 28	10-15
			Greatship Akhila	3-4
			Greatship Dhriti	3-4
			Lewek Altair	3-4
			Atlas Emerald	3-4
			Halani 1	3-4
			SBS Stratus	3-4
			SBS Nimbus	3-4
			PF Bravia	3-4
GSPCL	1 Drillship	1 Contract Rig	Malaviya 23	10-15	2 OSVs
			Drive Bonvista	3-4
			Chandra Neptune (small boat - not an OSV)
Hercules Marketing ltd, and Hercules International Ltd.	2 Jackup Rigs	2 Rigs rented on lease to ONGC	Swisco Surf	3-4	3 PSVs, 3 OSVs
			Garware - 5	3-4
			Billy . J. ramey - 2	3-4
			Chandra Jupiter	3-4
			Sis Pioneer	3-4
Cairn Energy India Pvt. Ltd.	1 Jack up rig on a platform	Owned Platform		3-4	4 PSVs
Hardy Oil and Gas plc	Platform	Owned Platform		3-4	2 PSVs

ONGC has the largest fleet serving the offshore installations with 22 Offshore Support Vessels (OSVs), followed by Reliance with a fleet of 8 OSVs, Cairn Energy with a fleet of 6 OSVs, GSPCL and Hardy with a fleet of 2 OSVs each.

The details of the major owners of OSVs operating for the E&P companies on the East coast of India are as below.

Most of the OSVs plying on the east coast of India are quite new breed of vessels with nearly 79% of them less than 5 years old. 11% of the OSVs are in the range of 16-20 years and 10% of them are in the range of 11-15 years.