Company lists · Data refreshed September 2026

Top 25 Oil and gas exploration companies based in India

Name: Oil and gas exploration companies based in India
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 148 companies tracked

RevenueBase identified 148 oil and gas exploration companies headquartered in India as of September 2026 and tracks 17,586 professional contacts across them, including 1,245 with verified work emails. Mumbai is the largest hub.

This list covers oil and gas exploration companies headquartered in India, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

148Companies

17,586Contacts tracked

1,245Verified emails

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The 25 largest oil and gas exploration companies based in India

Ranked by team size

Top 25 of 148 oil and gas exploration companies based in India, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas exploration companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Cairn OIL And GAS	Strong evidence	Gurugram, IndiaHQ checked Sep 17, 2026	1,001-5,000	2,585 contacts →
	Strong evidence “Cairn Oil & Gas, part of Vedanta Limited, is India's largest private oil and gas exploration and production company, contributing more than a quarter of India’s domestic crude oil…” Source: RevenueBase Database · checked Sep 17, 2026
2	John Energy Limited	Strong evidence	Ahmadabad, IndiaHQ checked Sep 17, 2026	501-1,000	1,096 contacts →
	Strong evidence “JEL is India based niche provider of oil & Gas Field serives.” Source: RevenueBase Database · checked Sep 17, 2026
3	Deep Industries Limited	Strong evidence	Ahmedabad, IndiaHQ checked Sep 17, 2026	501-1,000	714 contacts →
	Strong evidence “Deep Industries Limited started in the year 1991, with a primary objective of catering the ever increasing demand for Oil and Gas Industry.” Source: RevenueBase Database · checked Sep 17, 2026
4	Greatship	Indirect evidence	Mumbai, IndiaHQ checked Sep 17, 2026	1,001-5,000	681 contacts →
	Indirect evidence “The GREATSHIP GROUP is a provider of quality offshore oilfield services, owning and operating a comprehensive range of new generation, technologically advanced vessels and modern…” Source: RevenueBase Database · checked Sep 17, 2026
5	Hindustan OIL Exploration Company Limited Hoec	Strong evidence	Chennai, IndiaHQ checked Sep 17, 2026	201-500	535 contacts →
	Strong evidence “India's First Private Oil and Gas Company!” Source: RevenueBase Database · checked Sep 17, 2026
6	OIL Field Instrumentation India Pvt. LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 17, 2026	501-1,000	445 contacts →
	Indirect evidence “OFI-was founded in 1992 as an OEM for Mud Logging units / Mud logging services provider.” Source: RevenueBase Database · checked Sep 17, 2026
7	Sneha Farms PVT LTD	Partial evidence	Hyderabad, IndiaHQ checked Sep 17, 2026	501-1,000	313 contacts →
	Partial evidence “Sneha farms pvt ltd is an oil and energy company based out of hyderabad, Telangana, India.” Source: RevenueBase Database · checked Sep 17, 2026
8	Asian Energy Services Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 17, 2026	51-200	300 contacts →
	Indirect evidence “ASIAN is a reservoir imaging company, offering a suite of geophysical services specializing in land and well seismic services.” Source: RevenueBase Database · checked Sep 17, 2026
9	SUN Petrochemicals Pvt. Ltd. Sunpetro	Strong evidence	Mumbai, IndiaHQ checked Sep 17, 2026	201-500	227 contacts →
	Strong evidence “Sun Petrochemicals is a leading Oil & Gas upstream and exploration company in India known for its innovation, accuracy, and speed.” Source: RevenueBase Database · checked Sep 17, 2026
10	Dynamic Drilling & Services	Strong evidence	New Delhi, IndiaHQ checked Sep 17, 2026	201-500	206 contacts →
	Strong evidence “Dynamic Drilling, is an Indian Offshore Oil and Gas Drilling Company incorporated under the Indian Companies act 1956 with an objective to carry out business in the field of…” Source: RevenueBase Database · checked Sep 17, 2026
11	Jagson Group	Indirect evidence	New Delhi, IndiaHQ checked Sep 17, 2026	1,001-5,000	166 contacts →
	Indirect evidence “Jagson International Limited serves as the flagship company of the Jagson Group.” Source: RevenueBase Database · checked Sep 17, 2026
12	Oilmax Energy PVT LTD	Strong evidence	Mumbai, IndiaHQ checked Sep 17, 2026	51-200	125 contacts →
	Strong evidence “Oilmax Energy is a privately owned integrated Oil & Gas company with a balanced portfolio spreading from Exploration, Production, EPC, O&M to Gas Business.” Source: RevenueBase Database · checked Sep 17, 2026
13	Il&fs Tamil Nadu Power Company Limited	Indirect evidence	Chennai, IndiaHQ checked Sep 17, 2026	5,001-10,000	116 contacts →
	Indirect evidence “IL & FS TAMIL NADU POWER COMPANY LIMITED is a company based out of Cuddalore Plant C.” Source: RevenueBase Database · checked Sep 17, 2026
14	Parsan Overseas Pvt. LTD	Indirect evidence	New Delhi, IndiaHQ checked Sep 17, 2026	11-50	67 contacts →
	Indirect evidence “Parsan is primarily engaged in two distinct lines of business- Geo Services and International Trade.” Source: RevenueBase Database · checked Sep 17, 2026
15	Prabha Energy Private Limited	Strong evidence	Ahmedabad, IndiaHQ checked Sep 17, 2026	201-500	67 contacts →
	Strong evidence “Prabha Energy Private Limited (PEPL) is an Oil & Gas Company with business interests in both conventional and unconventional Oil & Gas Exploration and Production.” Source: RevenueBase Database · checked Sep 17, 2026
16	Gemco Kati Exploration P. LTD	Partial evidence	Chandrapur, IndiaHQ checked Sep 17, 2026	501-1,000	65 contacts →
	Partial evidence “We are one of oldest and experienced Exploration drilling company in central India based in Chandrapur (Maharashtra), established in 1980.” Source: RevenueBase Database · checked Sep 17, 2026
17	Geoservices Maritime Pvt. LTD	Indirect evidence	Navi Mumai, IndiaHQ checked Sep 17, 2026	51-200	61 contacts →
	Indirect evidence “To invest in a latest technology in order to fulfill efficiency and productivity to the fullest and provide the best quality survey services to the clients.” Source: RevenueBase Database · checked Sep 17, 2026
18	Jubilant Energy	Strong evidence	Noida, IndiaHQ checked Sep 17, 2026	51-200	58 contacts →
	Strong evidence “Jubilant Energy, a part of the Jubilant Group, is a leading private sector company in the upstream oil & gas exploration & production sector.” Source: RevenueBase Database · checked Sep 17, 2026
19	Advent Oilfield Services Private Limited	Indirect evidence	Gurgaon, IndiaHQ checked Sep 17, 2026	201-500	55 contacts →
	Indirect evidence “ADVENT OILFIELD SERVICES PRIVATE LIMITED is a mining & metals company based out of 802, Paarth Executive, GH-66, Sector-55, Gurgaon, Haryana, India.” Source: RevenueBase Database · checked Sep 17, 2026
20	Shivganga Drillers Private Limited - Sgdpl	Indirect evidence	Indore, IndiaHQ checked Sep 17, 2026	201-500	42 contacts →
	Indirect evidence “ShivGanga Drillers Private Limited is a closely held private limited company promoted in 2005.” Source: RevenueBase Database · checked Sep 17, 2026
21	Geovale Services	Partial evidence	Kolkata, IndiaHQ checked Sep 17, 2026	11-50	39 contacts →
	Partial evidence “Solution providers to the global mineral exploration and mining industry.” Source: RevenueBase Database · checked Sep 17, 2026
22	Enquest Petrosolutions	Indirect evidence	Delhi, IndiaHQ checked Sep 17, 2026	11-50	38 contacts →
	Indirect evidence “We are a Total E&P Solutions provider.” Source: RevenueBase Database · checked Sep 17, 2026
23	Indigeo Consultants	Partial evidence	Bangalore, IndiaHQ checked Sep 17, 2026	11-50	31 contacts →
	Partial evidence “IndiGEO Consultants provides comprehensive geoscience solutions to the mineral exploration industry.” Source: RevenueBase Database · checked Sep 17, 2026
24	Wellrx	Indirect evidence	Gurgaon, IndiaHQ checked Sep 17, 2026	11-50	28 contacts →
	Indirect evidence “We are an oilfield technology innovator.” Source: RevenueBase Database · checked Sep 17, 2026
25	Dalma Energy	Indirect evidence	Vadodara, IndiaHQ checked Sep 17, 2026	11-50	27 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: oil and gas exploration companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names oil and gas exploration companies.
Partial evidence: Its own public description names part of oil and gas exploration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas exploration companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 148 oil and gas exploration companies based in India

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Oil and gas exploration companies based in India at a glance

As of Sep 17, 2026

7.1%Verified-email coverage

118.8Average contacts per company

11-50Median size (employees)

17.6%Largest-city concentration · Mumbai

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for India, so it is reported there. Company counts and contact totals on this page are exact for India, over 148 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oil and gas exploration companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in India whose own description of what they do matches “oil and gas exploration companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names oil and gas exploration companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among oil and gas exploration companies, and records with no verified work email. Companies headquartered outside India are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 1,245 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Oil and gas exploration companies by metro

Oil and gas exploration companies in Mumbai26

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names oil and gas exploration companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many oil and gas exploration companies are there based in India?

RevenueBase identified 148 oil and gas exploration companies headquartered in India as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Cairn OIL And GAS, headquartered in Gurugram, tops this list with the largest team on record.

Which city has the most oil and gas exploration companies?

Mumbai leads with 26 headquartered companies, followed by New Delhi (12) and Gurgaon (11).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,245 verified decision-maker contacts tracked across these 148 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.