ORGANISATION
STRUCTURE - ONGC
Debraj, Sandali, Jeet, Aditya, Ruchika, Noor,
Nishchay, Harsh, Sparsh, Aniket, Seerat,
Pranav, Parinitha
Chairman & CEO
Corporate Planning MD, ONGC Videsh Ltd. Company Secretary Chief Vigilance Officer Corporate Communications HSE ONGC Energy Trust
Director (Production- Director (Production-
Director (Exploration) Director (HR) Director (T&FS) Director (Finance) Director General
Offshore) Onshore)
Mumbai Ahmedabad Western Offshore Corporate ER Corporate Finance
Uran Plant Drilling Services Research &
High
E&D Planning Unit
Ankleshwar Western Onshore Corporate HRD Drilling Internal Audit
Hazira Plant Bassein &
Satellite CMG
Coordination Unit
Assam & Assam
C2-C3 Plant Heera & Mehsana Arakan CSR Cementing Commercial
Neelam Laboratories
Cauvery Corporate
Offshore Logistics Eastern Cambay Mud Corporate Accounts
NMFD Administration
Offshore
PSC-JVs KG-PG
Assam CEC-OG Coordination Delhi Wall Services Budget/PAS
HP/HT
Offshore Engineering
Frontier Corporate Fire &
Bokaro Workover Treasury
BD&JV Security
Offshore Tech & Projects
IPSHEM MBP Corporate Medical WSS Risk Management
P&DD
Marketing
Karaikal IRS Corporate Legal Well Completion Direct Taxes
IOGPT
GEOPIC
Rajahmundry Corporate Sports Technical Services Indirect Taxes
IEOT
KDMPIE
Tripura ONGC Academy Info-com
INBIGS
Jorhat Skill Development Project ICE
Centres
Assets
CEWELL
Basins MM IDT
Plants Geophysical
Onshore Services
Services SMP
Engineering
Services
Logging Services
Corporate Services
CODs-
Shale/Basement
ONGC Energy Centre Trust
Director General
Having an efficient system of decentralized functioning, the ONGC
Research & Coordination
energy centre is headed by a Director General who is advised by an
Planning Unit Unit
expert advisory committee in all major decisions. He holds all the
power to take major decisions and is generally directly appointed by
HR
Research Projects
the Ministry of Petroleum and Natural Gas, Government of India
Finance & The Research & Planning unit is the key operational unit responsible
Accounts
Field Projects for implementation and coordination of research projects. This unit
is also responsible for Technology Scanning, generating new ideas,
Technology Scanning
MM Economic Analysis & Feasibility, evaluation and selection of research
projects, IPR related work, development of In-house research
Development of
facilities and other work related to projects.
IT
New Projects
The Coordination Unit provides all necessary administrative support
Economic Analysis & Secretariat of including secretarial support for meetings of the Trust and Expert
Feasibility Studies Trust
Advisory Committee, seminars, HR, IT, Finance & Accounting and
MM (Material Management) to the other units of OEC.
Seminar/Symposium
Other Technical
Activities
ONGC is structured to manage its entire value chain from exploration and
production to processing and support operations
Assets (Grey) :
These are specific oil and gas fields or production areas. Examples include Mumbai High, Bassein & Satellite, Ahmedabad, Ankleshwar, etc. Assets are the core
productive units where oil and gas extraction takes place.
Basins (Green) :
These represent geological regions or sedimentary basins where oil and gas exploration and production occur. Examples include Western Offshore, Western
Onshore, Assam & Assam Arakan, Cauvery, etc. Basins are larger geographical areas that may contain multiple assets.
Plants (Pink):
These are processing facilities where extracted hydrocarbons are treated, refined, or processed. Examples include Uran Plant, Hazira Plant, and C2-C3 Plant.
These plants prepare the raw oil and gas for further use or distribution.
Services (Black and Orange):
These are specialized operational support units. They're divided into two colors, indicating different types of services:
Black: Operational services like Drilling Services, Geophysical Services, Logging Services
Orange: More research or development-oriented services like IRS, GEOPIC, KDMIPE, etc.
Corporate Services (Light Blue):
These are support functions that serve the entire organization. Examples include Corporate ER (Employee Relations), Corporate HRD (Human Resource
Development),
ONGC follows departmentation by function at board level
The Chairman & CEO oversee the entire organization. Directly under the CEO are several key corporate functions:
• Corporate Planning - Responsible for long-term strategic planning and business development.
• MD, ONGC Videsh Ltd. - This is a separate entity focusing on ONGC's international operations
• Company Secretary - Ensures compliance with regulatory and legal requirements.
• Chief Vigilance Officer - Oversees internal integrity and anti-corruption measures.
• Corporate Communications - Manages internal and external communications.
• HSE (Health, Safety, and Environment) - Crucial for maintaining safety standards in this high-risk industry.
ONGC follows geographical departmentation at top and mid level
Director (Production- Offshore)
Director (Production – Offshore) is primarily responsible for offshore operations. This
includes:
• Departments like Mumbai High, Bassein & Satellite, Heera & Neelam, and Eastern
Offshore
• Offshore-specific units like Offshore Logistics, PSC-JVs, Offshore Engineering, and
Offshore Tech & Projects
ONGC follows geographical departmentation at top and mid level
Director (Production- Onshore)
Director (Onshore) is clearly responsible for onshore operations. These
include:
• Onshore assets like Ahmedabad, Ankleshwar, Mehsana, Cambay,
Assam, Bokaro, etc.
• Onshore plants such as Uran Plant, Hazira Plant, C2-C3 Plant
The Director heads reservoir management, regional gas pipeline networks,
transnational hydrocarbons pipeline projects, through Regional Heads, Onshore
Project Managers, Reservoir Engineers, Field Operators, etc.
ONGC follows geographical departmentation at top and mid level
Director (Exploration)
Oversees ONGC's exploration of new reserves via seismic imaging and geological
modeling, covering Western Offshore, Assam Arakan, and other major basins. Supported
by:
• Geophysical Services, IRS (Reservoir Studies), and exploration divisions working on
cutting-edge data analytics(en).
• NMFD (New Methods for Discoveries) and frontier teams focused on identifying
untapped oil and gas fields.
A core group that provides the facilities for Exploration and Transportation of Hydrocarbon in
Western Offshore is the Offshore Engineering Services (OES). OES is a core group of multi-
disciplinary engineers in ONGC entrusted with the task of creation of new facilities at Offshore as
well as enhancement and revamp of existing facilities.
ONGC follows functional departmentation at OES
Director (Exploration)
Offshore Engineering Services Marine Survey Section
Director (Exploration)
– Head of MS
Offshore Works Division –
Head of Offshore Works
HSE
Western Offshore
OES provides the following facilities for Exploration and – In Charge HSE
Transportation of Hydrocarbon in Western Offshore: Offshore Design Division -
Head of Design
• Process /Living Quarter Platforms. Executive Director-
Chief OES
• Well Head Platforms
• Submarine Pipelines (Trunk lines, in-field lines) Materials Management –
• Clamp-on Structures In Charge MM
• Submarine Cables for Power and Controls
• Mobile Offshore Production Units (MOPU).
• OES not only creates new facilities but also take-up Finance -
revamping /up gradation of existing facilities to increase In Charge Finance
their lifespan.
OES is headed by Executive Director- Chief Offshore
Engineering Services (ED-COES)
ONGC follows functional departmentation at HR
Director (HR)
Handles human resources, labor relations, and skill
development, with a focus on:
• Corporate Medical, Legal, and Sports.
• ONGC Academy
• Skill Development Centres to train employees
ONGC follows functional departmentation at OES
Director (T&FS)
Manages drilling and field services to maintain and increase well productivity.
Key departments:
• Drilling Services: Specialized in deep-water drilling and advanced
techniques for high-pressure environments.
• Well Services, Workover, and Well Completion for enhancing oil and gas
recovery.
• Project ICE, Info-com, and IDT oversee technical innovations and digital
services.
The director performs these tasks with the help of drilling managers, drilling
engineers, rig supervisors, mud engineers, etc.
ONGC follows functional departmentation at Finance
Director (Finance)
Ensures sound financial management across all assets,
covering:
• Corporate Accounts, Treasury, and Risk Management.
• Internal Audit, Direct Taxes, Indirect Taxes, and
Commercial divisions ensure regulatory compliance.
