Ananthakrishnan has over 25 years of experience in the upstream oil and gas sector, holding various leadership roles at Cairn Energy and Cairn India. He has expertise in business leadership, technical leadership, and organizational skills. Most recently, he was the Director of Gas Development at Cairn India, where he led the development of a 1 Tcf gas field and oversaw a substantial increase in production. Previously he was the Director of Subsurface and Head of Reservoir Development, responsible for field development planning, reserves reporting, and the development of major oil fields in Rajasthan, India.

1. ANANTHAKRISHNAN.B
Tower-2/3A, The Hibiscus
Sector-50, Gurgaon,
India 122018
Email: ananthraji@gmail.com
Contact: +919818174712
PROFILE:
Senior Executive with broad subsurface technical skills and strong business acumen with over
25 years of diverse technical and business experience in the Upstream E&P sector: of which 20
years in Cairn Energy Pty Ltd/Cairn India Ltd: a high growth entrepreneurial Independent E&P
company (Market cap of US$ 0.5Bn in 1999 to >US$12billion in 2013). Held various executive
and technical leadership positions engaged in Asset management, Exploration, Field
development planning of conventional reservoirs including EOR, tight reservoir development and
execution, reservoir management, corporate planning and strategy, new business evaluation,
investor relations and PSC/Joint Venture management.
EXPERTISE:
 Business leadership: Member of the Executive Committee of Cairn India Ltd, Leading
Business Unit/Asset and holding overall accountability for all commercial and technical
aspects including P&L, Budgeting, development planning, execution and production.
Managing Corporate planning and Strategy including capital allocation, Implementing and
managing Decision review Gate process, Investment decisions, New Venture evaluation
 Technical Leadership: Leading multidisciplinary and multicultural high performance
subsurfaceteams executing exploration, appraisal and development of onshore and offshore
fields including complex waxy and viscous oil fields, reservoir management of onshore and
offshore fields under waterflood, managing large exploration and development programs.
 Organizational: Building and leading highly skilled technical teams, developing career
architecture, career development planning and performance management systems.
EMPLOYMENT HISTORY
Director Gas Development & Member Executive Committee 2014-Present
Cairn India Ltd
Business Leadership
 Member of a 6 member Executive Committee which is responsible for recommendations to
the board on strategy, project sanction, Business plans, organizational policies. Acting
Chairman of the internal sustainability committee responsible for developing and coordinating
the implementation of the sustainability agenda across the organisation.
 Leader of the Gas business unit accountable for HSE, P&L, Business Strategy, Budgeting,
and Development of a 1 Tcf tight gas reservoir by integrating Subsurface, Drilling, Petroleum
engineering including Hydrofrac operations, Projects,production operations, commercial and
JV management.
o Identified a strategic and business opportunity in converting a gas field used for captive
consumption to commercial production
o Successfully led the ~US$500MM field development from Concept to FID for
production of 25,000boepd, managing both internal and external JV approvals in
record time. Subsequently led the development optimization initiative resulting in
~20% reduction in development costs.
o Successfully increased production 3 fold to ~7500boepd by debottlenecking the
existing facility and pipeline.

2. o Led the execution of a multi well hydro- frac program resulting in over 100% increase
in individual well productivity and a 30% increase in overall expected ultimate recovery
and >50% increase in hydro-frac operational efficiency.
Director Subsurface, 2008-2014
Cairn India Ltd
Head Reservoir Development (2008-2010)
Technical Leadership
 Leading a multi-disciplinary subsurface department of +130 professionals responsible for
field development planning and reservoir management of all Cairn assets
 Responsible for the development of a highly skilled subsurface function to meet the
aggressive future growth requirements of the company
 Accountable for reserves addition and delivery of annual internal and external reserve
reviews and reporting.
 Part of the senior leadership team involved in technical, organizational and strategic decision
making. Active involvement in corporate planning and strategy and investment relations.
Greenfield developments
 Led the execution of multi-billion dollar developments of three major onshore medium
viscous, waxy oil fields in Rajasthan with a total reserves plus resource base of ~1 billion
barrels with current production ~200,000bopd ramping up from a standing start in 2009. This
includes Mangala, the largest oil discovery in the world in 2004.
 Strategized and executed the overall ramp up of the Mangala Field to 150,000 bopd from an
initial FDP approval of 100,000 bopd. Identified production enhancement opportunities in
Aishwariya field from 10,000bopd to 30,000bopd.
 Delivered development plans of around 10 oil and gas fields, including tight oil and gas fields.
Technology applications
 Led the Rajasthan EOR subsurface team and managed the design and execution of a
chemical EOR Polymer/ASP pilot in the Mangala reservoir. The EOR pilot began within one
year of field production startup and was successfully completed within two years.
 Following the successfulEORpolymerpilot which resulted in a ~10% increase in the recovery
factor over waterflood, delivered full-field Field Development Plans for the two largest fields
(Mangala and Bhagyam) in Rajasthan that resulted in reserves addition of ~100mmboe. Full-
field polymer flood operational in Mangala since 2015, within five years of production startup.
 Introduced 4D seismic technology, obtained external and internal approvals through detailed
techno-commercial feasibility studies. The infill drilling based on the 4D survey was
successful in adding ~5mmboe of reserves.
 Spectral decomposition for delineation of thin sands and successfulexecution of multiple infill
drilling campaigns in a predominantly gas producing field that resulted in additional oil
reserves of 35mmbbls
 Led implementation of Digital Oil field data acquisition systems in multiple assets

3. Reservoir management
 Managed a growing production base of +225,000bopd from all assets predominantly under
waterflood .
 Led reservoir management efforts for all producing fields in Rajasthan focused on
implementing sound reservoir management practices in varied type of reservoirs: fluvial
sandstone reservoirs under waterflood, marine shoreface sands under waterflood with an
EUR of over 55%, thin tidal channel sands, tight reservoirs.
 Led multiple successful infill drilling campaigns resulting in acceleration of production and
increased recovery.
General Manager Rajasthan Subsurface
Cairn India 2004-2008
Technical & Team management
 Seismic interpretation, prospect generation and field appraisals in Rajasthan.
 Critically involved in the discovery of the billion barrel Mangala oilfield, followed by the
discovery of the Bhagyam and Aishwariya fields, Rajasthan
 Led appraisal programs for these fields, including planning and acquisition of 3D seismic over
discovered fields, VSP surveys, and seismic interpretation for delineation of the fields. Also
led efforts for volumetric assessments of the discoveries.
 Subsurface team leader responsible for overall development planning of the three major
Rajasthan fields containing reserves-resources of +1billion barrels of waxy viscous oil in high
quality fluvial sandstone reservoirs. Successfully delivered obtained approvals for field
development plans integrating seismic studies, reservoir characterization including RCAL,
SCAL, well logs, and complex fluid properties within multiple static and dynamic models,
generating multiple production outcomes and development scenarios.
.
Principal Geoscientist
Cairn Energy India Ltd 2000-2004
Technical
 Regional interpretation of 2D seismic data over a shallow offshore block in Cambay Basin,
India.
 Mapping of multiple Leads and prospects, Prospect evaluations and Drilling proposals
 Discovered multiple gas accumulations with a total reserve base of ~400bcf of gas with thin
oil plays (Lakshmi, Gauri, Ambe fields)
 Conducted volumetric assessment, prepared development plans, obtained JV and
Government approvals and Internal FID.
 Carried out detailed 3D seismic attribute analysis, structural interpretation and reservoir
characterization: development well planning and well placement including very shallow high-
angle near horizontal wells in thin reservoirs. Part of the development team which executed
the development bringing first gas 26months after discovery.
Well site Geologist/Geologist
Cairn Energy Ltd 1996-2000
Technical
 Involved with regional studies and prospect evaluations in KG offshore basin blocks. Prepared
exploration bids.
 Seconded to Edinburgh corporate Head office to support exploration and development work
 Sent as an observer well site geologist to the firstwell in BarmerBasin drilled by Shell. Actively
involved in identifying oil presence in logging tools, drilling fluid and in cuttings.
 Prepared Declaration of Commerciality for various small discoveries within the Ravva block.

4.  Performed well site duties and operation geology duties in the development drilling campaign in
the Ravva field
 Played a key role in G&G interpretation resulting in ramp up of production from 3000bopd to
50,000bopd
Mud logging Engineer
Jindal Drilling Industries 1991-1996
 Performed mud logging operations for ONGC in various basins in Southern India
EDUCATION
 Patrice Lumumba people’s friendship University, Moscow), M.Sc in Petroleum Geology
 Executive programs at Kellogg, Oxford and University of Texas
 Various technical courses in seismic sequence stratigraphy, seismic interpretation and
attribute analysis, basin analysis, structural geology
TECHNICAL PUBLICATIONS
 Co-authored various SPE, SPWLA and AAPG technical papers on evaluation and
development of waxy oil fields.
PROFESSIONAL AFFILIATIONS
 Society of Petroleum Engineers (SPE)
 Society of Exploration Geophysicists
PERSONAL INTERESTS: Badminton, Marathon running, General physical fitness, cryptic
crosswords, Indian classical music and reading.
REFERENCES AVAILABLE ON REQUEST.