Asset
| Asset | Project Name | Date of EC granted | Six monthly compliance reports | |
|---|---|---|---|---|
| Ahmedabad Asset | 1 | Development Drilling of (406 nos.) of wells (Oil and natural Gas) in oil Field of Ahmedabad Asset at Kheda, Gandhinagar and Ahmedabad District of Gujarat | 22.03.2016 | Click here |
| 2 | Drilling of Development wells (108 nos.) in oil field of Ahemdabad Asset of ONGC Ltd. at Mehsana and Gandhinagar, Gujarat | 20.03.2017 | Click here | |
| Ankleshwar Asset | 1 | Development and production of Oil / Gas from Uber-2 well by M/s ONGC Ltd. at Jambusar (Gujarat) | 06.03.2019 | Click here |
| 2 | Offshore oil/gas development by drilling of four wells by M/s ONGC Ltd. under the NELP V Offshore Block CB-OSN-2003/1 at Aliabet Field, Ankleshwar Asset (Gujarat) | 22.04.2020 | Click here | |
| 3 | Development and production of oil & gas from 145 wells located at 30 ML blocks in Bharuch, Surat and Vadodara districts, Gujarat by M/S ONGC Limited | 13.04.2023 | Click here | |
| Assam Asset | 1 | Onshore Development and Production of Oil & Gas from 200 wells in 23 blocks in District Sivasagar (Assam) | 06.03.2019 | Click here |
| Cambay Asset | 1 | Development drilling of 108 wells laying of 4”and 8”oil and gas flow lines & establishment of 03 numbers of EPS, 01 number of WHI, 03 nos of Water injection facilities and 03 nos. of ETP of M/s ONGC in operation areas of Cambay Sub Asset in Gujarat | 16.03.2017 | |
| Cauvery Asset | ||||
| CBM Asset | 1 | Development of North Karanpura CBM Block NK-CBM-2001/1 in Jharkhand | 12.05.2015 | |
| 2 | Development Plan of CBM Block (BK-CBM-2001/1 in District Bokaro, Jharkhand by M/s ONGC | 28.03.2016 | Click here | |
| 3 | Development of Jharia CBM Block, Jharkhand | 11.04.2017 | Click here | |
| 4 | Development and Production of Coal Bed Methane Gas by M/s ONGCL – CIL Consortium at Raniganj North block, District Paschim Bardhaman (West Bengal) | 06.07.2018 | ||
| Eastern Offshore Asset | 1 | Development of Vashishta and S-1 fields of K.G. offshore, Eastern Offshore Asset at Kakinada, Andhra Pradesh and expansion of Odalarevu Onshore Terminal, A.P. | 12.11.2015 | Click here |
| 2 | Development drilling of 45 wells at Block KG-DWN-98/2, KG offshore, Tehsil Allavaram, District East Godavari, Andhra Pradesh | 22.01.2016 | Click here | |
| 3 | CRZ Clearance for laying of 20-inch gas pipeline of 31 km length from Offshore Platform, in the East Coast passing through the mouth of the Gautami – Godavari River, part of Yanum (2.51 km) U.T. of Puducherry and East Godavari District, Andhra Pradesh | 15.10.2020 | Click here | |
| 4 | Environmental Clearance for Integrated Development of GS-15 and G-1 Offshore Fields in Godavari Basin and Expansion of Onshore Terminal Facilities at Odalarevu in K.G. Offshore | 09.09.2005 | Click here | |
| 5 | CRZ Clearance for Construction of Groynes for Coastal Protection near ONGC Pipeline and Plant Area at Odalarevu, District Konaseema, Andhra Pradesh | 11.09.2024 | Click here | |
| Exploratory Asset, Jodhpur | 1 | Compliance status of conditions stipulated by MoEFCC while granting Environment Clearance of Jaisalmer basin | 09.12.2014 | Click here |
| 2 | Compliance status of conditions stipulated by MoEFCC while granting Environment Clearance of Bikaner basin | 11.10.2023 | Click here | |
| Exploratory Asset, Silchar | 1 | Development and Production of Gas in Banskandi and Bhubandar Block with Interconnecting pipelines by M/s ONGC Limited at Tehsil Silchar, District Cachar (Assam) | 06.07.2018 | Click here |
| HP-HT Asset | 1 | Expansion of OGT and CPP at onshore and addition of Process cum Living Quarters Platform bridge connected to Well Head Platform at offshore of Development Operation by M/s Gujarat State Petroleum Corporation Ltd in KG-OSN-2001/3 Offshore Block at Village Mallavaram, Mandal Tallarevu, District Godavari (Andhra Pradesh) | EC transferred from GSPC to ONGC dated 30.07.2019 | Click here |
| 2 | Deen Dayal Development project (KG-OSN-2001/3 Block NELP-III) regarding setting up of offshore well Head platform in KG Basin, offshore to onshore sub-sea pipeline, Onshore gas terminal (OGP), Condensate Storage Unit / (CSU) at Mallavaram, Andhra Pradesh with landfall point at Avipolam Hamlet of Yanam in Puducherry | EC transferred from GSPC to ONGC dated 13.11.2019 | Click here | |
| Jorhat Asset | 1 | Onshore development and production of oil and gas from six wells in 5 Mine Lease Blocks in Districts Jorhat and Golaghat (Assam) | 01.05.2019 | Click here |
| 2 | Conversion of exploratory well KSAB to Development well located at Kasomarigaon, District Golaghat, Assam | 08.12.2020 | Click here | |
| 3 | Onshore Development and Production of oil & gas from 53 wells in 7 ML blocks by M/s ONGC Ltd. Located in Jorhat and Golaghat districts, Assam | 17.03.2021 | Click here | |
| 4 | Onshore development and production of oil and gas from 28 wells and establishment of kasomarigaon EPS and GGS at SUAB drill site in forest area in 6 PML Blocks, Golaghat district, Assam | 31.07.2023 | Click here | |
| 5 | Onshore Development and Production of Oil & Gas from 22 wells in Forest Area in 6 PML blocks, Golaghat district, Assam located at District Golaghat, State Assam by M/s Oil and Natural Gas Corporation Limited – Consideration of Environment Clearance reg. | 28.10.2024 | Click here | |
| 6 | Onshore development and production of Oil & Gas from 30 wells and Establishment of GGS at Khoraghat area in notified forest land in 3 PML blocks, Golaghat, Assam by M/s Oil & Natural Gas Corporation Limited - Grant of prior Environmental Clearance (EC) under the provision of the EIA Notification 2006 - regarding | 20.03.2025 | Click here | |
| Mehsana Asset | 1 | Development Drilling of 406 wells by M/s ONGC located at Mehsana, Gandhinagar, Ahmedabad and Patan in Gujarat – Consideration of Environment Clearance regarding. | 25.01.2021 | Click here |
| Rajahmundry Asset | 1 | Onshore Oil and Gas Development and Production from 3 wells by M/s ONGC Ltd at Nagayalanka in the onland NELP-V Block KG-ONN-2003/1 in District Krishna (Andhra Pradesh) | 20.03.2018 | |
| 2 | Onshore Development and Production of Oil and Gas from 72 wells in two onland PML Blocks (Godavari, West Godavari and Krishna (Andhra Pradesh) | 31.10.2018 | Click here | |
| 3 | Onshore Development & Production of oil and gas from 172 wells in 8 PML blocks in Konaseema, West Godavari & Krishna Districts, Andhra Pradesh located at Village (NA) Tehsil (NA), District Konaseema, West Godavari & Krishna Districts, State Andhra Pradesh | 25.11.2025 | Click here | |
| Tripura Asset | 1 | Onshore Oil & Gas Development and Production from 9 wells by M/s ONGC Ltd in the Districts of South Tripura, Gomati and Sepahijala (Tripura) | 20.03.2018 | Click here |
| 2 | Half yearly compliance report of EC for Exploratory wells (Category A).(H'2 2021-22) | 23.05.2022 | Click here | |
| 3 | Environmental clearance (EC) for Drilling of Exploratory Wells (Category B2) in Tripura by M/s ONGC Ltd. | 23.05.2022 | Click here | |
| 4 | Half yearly compliance report of EC for Exploratory wells (Category B2) of Tripura Asset.(H'1 2022-23) | 30.11.2022 | Click here | |
| 5 | Half yearly compliance report of EC for drilling of Exploratory Wells of Tripura Asset (H'2 2022-23) | 30.05.2023 | Click here | |
| 6 | Onshore Development & Production from 105 wells in 12 nomination PML blocks in Sipahijala, West Tripura and Gomati districts of Tripura and 10 wells and Khubal GCS in NELP PML of North Tripura districts, Tripura | 30.05.2022 | Click here | |
| 7 | Conversion of 37 Exploration Wells & laying of Associated Flowlines, involving construction of Well Manifold at Kunjaban & Sundalbari and Pipeline at North Tripura by ONGC Limited | 28.10.2021 | Click here | |
| 8 | Environmental Clearance for Drilling of Exploratory Wells | Click here | ||
| 9 | Onshore Development and Production from 5 wells (viz.BMDH, GODA, GODB, GODD and RO#15A) falling in forest area of 3 PML blocks in South Tripura, Sephaijala and West Tripura districts | 12.10.2023 | Click here | |
| 10 | Proposed drilling of TIDD development well and installation of Tichna EPS, falling in Sepahijala district, Tripura | 11.10.2023 | Click here | |
| 11 | Drilling of 37 exploratory wells in 9 PML Blocks by M/s ONGC Ltd in Tripura | 13.09.2017 | Click here |
Basin
| Basin | Project Name | Date of EC granted | Six monthly compliance reports | |
|---|---|---|---|---|
| A&AA Basin | 1 | Drilling of 6 Exploratory Wells (RBK-1, LBAA, RPAA, RLBK-1, RTDN-1 and RBK-3) in Pre-NELP Block AA-ONJ/2 at Cachar, Assam | 06.03.2017 | |
| 2 | Proposed 8 no. of exploratory drilling in ML areas of Sivasagar, Assam | 20.03.2017 | Click here | |
| 3 | Proposed Exploratory drilling of 13 exploratory wells in PML area of SAS Balock in Sarupathar Tehsil District Golaghat, Assam | 31.03.2017 | Click here | |
| 4 | Drilling of Exploratory wells (25 Nos.) in PEL & PML Blocks of Cachar Forward Base in Assam | 19.04.2017 | ||
| 5 | Drilling of Exploratory Wells (50 Nos.) in 9 PML Blocks in Tripura | 13.09.2017 | ||
| 6 | Development Drilling of one well (BKDB)-A of M/s ONGC Ltd in Banaskandi PML Block of Cachar, A&AA Basin, District Cachar (Assam) | 13.09.2017 | ||
| 7 | Exploratory Drilling of 10 wells at Rudrasagar, Geleki, Lakwa, Namti, Mekeypore-Santak-Nazira PML areas in District Sivasagar | 28.09.2017 | Click here | |
| 8 | Exploratory drilling of two wells in NELP Block AA-ONN-2001/2, in District Kolasib (Mizoram) | 28.03.2019 | Click here | |
| 9 | Onshore Exploration and development of oil & gas by M/s ONGC Ltd in Assam and Assam Arakan Basin (A&AA Basin) in Districts Cachar and Hailakandi (Assam) | 07.08.2019 | Click here | |
| 10 | Onshore exploration, development and production of oil & gas in 21 onshore PML blocks in Upper Assam North, A & AA Basin at District Sivasagar (Assam) | 06.12.2019 | Click here | |
| 11 | Environment Clearance for Exploration, Development and Production in five onshore PML blocks in AAFB, A&AA Basin, Cachar District and Karimganj District, Assam | 27.09.2021 | ||
| 12 | Drilling of Exploratory Wells (3Nos.) from the CP of Well KHE in forest areas of The Nambar ML-Block, Dist. Golaghat, Assam | 09.12.2020 | Click here | |
| 13 | Environment Clearance for Exploration in Upper Assam Shelf (South) in Jorhat and Golaghat District, Assam for 4 forest locations (KSAD, KSAE, KSAI and KSAH) in forest area | 26.04.2021 | Click here | |
| 14 | Drilling of Exploratory Wells THAA, TJAA & BRAK under the project “Drilling of 45 Exploratory wells in Upper Assam Shelf (South) area encompassing Jorhat and Golaghat, Assam | 16.03.2021 | Click here | |
| 15 | Environmental Clearance for Onshore Exploration of Oil & Gas from 2 wells (KHBD & NRAD) in Forest Area in 3 ML Blocks Golaghat District, Assam | 27.04.2021 | Click here | |
| 16 | Drilling of Exploratory Wells (7 Nos.) at Golaghat Dist. Under the project “Drilling of 45 Exploratory wells in Upper Assam Shelf (South )area encompassing Jorhat and Golaghat , Assam” by A&AA Basin, ONGC, Jorhat | 17.02.2023 | Click here | |
| Cauvery Basin | 1 | Exploratory Drilling of 10 wells at NELP-VI, Onshore Block CY-ONN-2004/2 in Ariyalur District, Tamil Nadu | 10.09.2015 | |
| 2 | Exploratory Drilling of 22 Wells (Onshore) in Ramanathapuram PML Block, District Ramanathapuram (Tamil Nadu) | 30.08.2018 | Click here | |
| Frontier Basin | 1 | Exploratory Drilling of 4 wells at NELP-VII Block, VN-ONN-2009/3, Son Valley, Vindhyan, Frontier Basin, District Damoh, Madhya Pradesh | 27.10.2015 | Click here |
| 2 | Drilling of 15 exploratory wells by M/s ONGC Ltd. in Nohta-Damoh-Jabera PML Block, Vindhyan Basin, District Damoh (Madhya Pradesh) | 27.12.2019 | Click here | |
| 3 | Exploration in Kangra-Mandi PEL Block in Mandi and Kangra Districts, Himachal Pradesh | 15.04.2020 | Click here | |
| 4 | Exploratory Drilling of wells in 1 NELP and 6 OALP Blocks by M/s ONGC Ltd. Frontier Basins Dehradun | 03.08.2022 | Click here | |
| 5 | Exploratory Drilling of wells in 1 NELP and 9 OALP Blocks by M/s ONGC Ltd. Frontier Basins Dehradun | 14.06.2022 | Click here | |
| KG Basin | 1 | Additional Exploratory Drilling of 15 wells in NELP-1 Offshore Block KG-DWN-98/2, KG Basin, Andhra Pradesh | 28.03.2017 | Click here |
| 2 | Exploratory Drilling of 5 wells for shale oil/shale gas in KG Basin, Andhra Pradesh | 15.06.2017 | Click here | |
| 3 | Additional Exploratory Drilling of 35 wells in KG Offshore (IA, IB & IG, IE and IF) Block in Andhra Pradesh by M/s Oil and Natural Gas Corporation Ltd. | 13.04.2015 | Click here | |
| 4 | Additional Exploratory Drilling of 8 wells in NELP-VI Block KG OSN 2004/1 of M/s ONGC, KG Offshore A.P | 17.09.2021 | Click here | |
| 5 | Additional Exploratory drilling of 65 wells in PML acreages falling in Krishna, West Godavari and East Godavari districts | 23.03.2015 | Click here | |
| 6 | Additional Exploratory drillin g of 50 wells in Godavari Onland PMLs in East and West Godavari districts of AP | 06.12.2022 | Click here | |
| MBA Basin | 1 | Exploratory Drilling (10 wells) in Bengal Onshore Block WB-ONN-2005/4, West Bengal under NELP-VII | 26.09.2022 | Click here |
| 2 | Exploratory Drilling (8 wells) in Bengal Onshore Block BP-ONHP-2019/1 (OALP-IV) | 22.07.2024 | Click here | |
| 3 | Exploratory Drilling (6 wells) of M/s Oil & Natural Gas Corporation Ltd' (ONGCI} in Bengal Onshore Block WB.ONN -200514, West Bengal under NELP-V spread over four districts 24-parganas (N), Nadia,,Burdwan and Hoogli in West Bengal | 25.06.2014 | Click here | |
| 4 | Proposed Onshore Exploratory drilling of 04 wells in Bengal Onshore OALP-V Block BP-ONHP2019/2 situated in the districts of East Medinipur and West Medinipur, West Bengal By M/s. ONGC Limited, MBA Basin | 12.07.2024 | Click here | |
| 5 | Exploratory drilling of 7 Wells in Bengal On shore OALP-III, Block BP-ONHP-2018/1 situated in North 24 Paraganas and South 24 Paraganas by M/S. ONGC Limited, MBA Basin | 26.09.2022 | Click here | |
| Western Offshore Basin | 1 | Drilling of one Exploratory Well at MB-OSN-2005/3 (NELP-VII Block), Mumbai offshore southwest of the Mumbai High-DCS platform | 07.01.2015 | |
| 2 | Drilling of Five Exploratory Wells at MB-OSN-2005/3 (NELP VII Block), Mumbai Offshore, Southwest of Mumbai High DCS platform, Maharashtra | 04.08.2017 | ||
| 3 | Offshore oil and gas exploration by M/s ONGC Ltd in Mumbai Offshore Block MB-OSN-2005/1(NELP-VII) on Indian West Coast | 30.04.2019 | ||
| Western Onshore Basin | 1 | Exploratory Drilling of 22 nos. of Wells in NELP-IX Blocks GEI-ONN 201011, CB-ONN-201 0/6 & CB-ONN-201019 at Banaskantha, Gandhinagar and Ahmedabad District, Gujarat | 28.03.2016 | |
| 2 | Oil and Gas Exploration in 13 ML Blocks in Western Onshore Basin by M/s ONGC Ltd in Surat, Bharuch and Vadodara (Gujarat) | 06.03.2018 | Click here | |
| 3 | Oil and Gas Exploration in 10 ML Blocks of Western Onshore Basin in the Districts of Patan and Mehsana (Gujarat) | 20.03.2018 | ||
| 4 | Shale Oil & Gas Exploration in 11 Blocks by M/s Oil and Natural Gas Corporation Ltd in Cambay Basin in the districts of Mehsana, Gandhinagar, Ahmedabad, Kheda and Bharuch (Gujarat) | 20.03.2018 | Click here | |
| 5 | Onshore Oil & Gas exploration by drilling 46 wells in 12 ML Blocks of Western Onshore Basin, District Mehsana, Gujarat | 06.12.2019 | Click here | |
| 6 | Exploratory Drilling of 134 locations (Onshore) in 32 ML Blocks of Western Onshore Basin at Vadodara, Gujarat | 27.12.2019 | Click here | |
| 7 | Onshore Oil and Gas Exploration and Appraisal in OLAP Block GS-ONHP-2021/1 by drilling 3 wells in Junagarh district of Gujarat | 20.02.2024 | Click here | |
| 8 | EC For Exploratory Drilling of 3 Exploratory Wells in OALP ML Blocks GK-ONHP- 2019/1 and GK-ONHP - 2021/1 in Kachchh District of Gujarat | 20.02.2024 | Click here | |
| 9 | EC for Exploratory Drilling of 10 wells in the OALP block CB-ONHP-2021/2, Western Onshore Basin, Gujarat | 05.07.2023 | Click here | |
| 10 | EC for Oil and Gas Exploration and Appraisal of 12 wells in six MLs (Gandhar -EXT-III, IV, V, VI, VII and IX) of Western Onshore Basin in Bharuch district of Gujarat | 20.02.2024 | Click here | |
| 11 | Onshore Exploration of Oil and Gas from 14 wells in 4 ML Blocks in Bharuch and Vadodara District | 04.11.2022 | Click here | |
| 12 | Drilling of sixteen Exploratory Oil and Gas Wells in OALP PEL Blocks CB-ONHP- 2020/1 and CB-ONHP - 2021/1, Ahmedabad and Gandhinagar Districts, Gujarat | 05.12.2023 | Click here | |
| 13 | EC for Onshore exploration of hydrocarbon from 25 wells in 10 ML Blocks in Anand and Vadodara District | 08.06.2023 | Click here | |
| 14 | EC for Oil and Gas Exploration & Appraisal of 40 wells in 18 ML Block of ONGC Western Onshore Basin in Mehsana and Gandhinagar district of Gujarat | 24.02.2025 | Click here | |
| 15 | Application for grant of EC for onshore Oil & Gas exploration and appraisal from 46 wells in 17 ML block in Mehsana, Gandhinagar, kheda and Anand districts of Gujarat | 26.07.2023 | Click here |
Plant
| Plant | Project Name | Date of EC granted | Six monthly compliance reports | |
|---|---|---|---|---|
| C2-C3 Plant | ||||
| Hazira Plant | 1 | Expansion of Hazira Gas Processing Complex by adding Captive Combined Cycle Power Plant at Tehsil Chorasi, District Surat (Gujarat) | 22.03.2018 | Click here |
| Uran Plant | 1 | Expansion of Uran Oil & Gas Processing Plant by adding LPG bullets at Uran Complex, Tehsil Uran, District Raigad (Maharashtra) | 21.02.2018 | Click here |
| 2 | Expansion of onshore oil & gas processing plant by M/s ONGC Ltd. at Uran by establishing Additional Cogeneration Unit GT-IV and Enhanced Reactive Thermal Oxidizer (ERTO) within the existing Uran Plant, located in Uran, Maharashtra | 13.10.2020 | Click here |
