As energy demand grows and automation transforms industrial operations, the oil and gas sector is rapidly evolving across its entire value chain. Based on an in-depth conversation between Arun Bhardwaj, Editorial Director of EM Magazine, and Vijay Garg, Oil and Gas Tech Solution Expert, this article explores the industry’s structure, market trends and the technologies shaping its future.
The oil and gas industry runs on an intricate, interconnected value chain that begins with upstream exploration, moves through midstream transportation and storage, and culminates in downstream refining and retail, alongside a parallel gas value chain running from wellhead to LNG, and then the end use. This article guides readers to understand the industry’s mechanics from exploration fields to retail networks, its architecture, its key players, and the automation now transforming the trajectory for the businesses that depend on it.
Upstream: Exploration, Field Development and Production
The most capital-intensive phase of the oil and gas business, which is the upstream segment that encompasses the exploration for, and production of, crude oil. It mainly involves seismic surveys, geological mapping, exploratory drilling, field appraisal, field development and ultimately full-scale production of crude oil. The upstream activities dictate the global supply volume, which directly fixes commodity pricing and dictates midstream and downstream profitability. ONGC is India’s dominant upstream player and is purely focused on exploration and production. Chevron, and Shell, on the global level, similarly operates as an upstream-focused major. India’s upstream sector has historically been state-controlled, with ONGC and Oil India Limited (OIL) as its two dominant PSU players. However, private participation is now actively encouraged, with 100% FDI permitted in upstream projects.
Midstream: From Field to Refinery
Midstream operations cover the transportation and storage of crude oil which relies on the inter-connected multimodal network, utilizing pipelines for continuous bulk delivery, waterways through massive marine tankers and Floating Storage and Offloading (FSO) vessels, railways through specialised tank car and roadways using heavy-duty tanker trucks. Midstream is said to bridge the gap between remote upstream extraction sites and downstream refining hubs. The global midstream market is currently navigating a period of steady expansion mixed with heavy structural disruption. As of June 2024, India had 10,941 km of crude pipeline network with a capacity of 153.1 MMTPA. The government’s ‘One Nation, One Grid, One Tariff’ initiative plans to expand the natural gas pipeline network by a further 10,805 km.
Downstream: Refining and Retail
Downstream is where crude oil is transformed into products that power economies. Refining and Retail are subjected to be the two arms of this component, where Refining is when the crude oil enters the refinery as a raw input and undergoes distillation and cracking producing petrol, diesel, lubricants, LPG, naphtha, kerosene and aviation turbine fuel. As per MoPNG, India’s refining capacity in 2025 stood at 258.1 MMT, with a target to nearly double it to 450–500 MMT by 2030, which makes India the fourth largest crude oil refiner globally.
The retail arm distributes refined products to end consumers through two primary channels, one is the B2B (Business-to Business), which serves industrial buyers like the aviation companies purchasing jet fuel, shipping lines sourcing bunker fuel, heavy industries buying furnace oil, and fleet operators procuring bulk diesel. And the other on is B2C (Business-to-Consumer) which is most visibly represented by petrol pumps and gas stations, a network through which 67 million people refuel every single day in India. HPCL and BPCL are key downstream operators with significant refinery assets. IOCL is the largest domestic refiner and the second-largest refiner in Asia. By the data monitored by International Energy Agency (IEA), global refinery through puts have experienced a contradiction of 1.6 million barrels per day.
Current Market Insights: The Gas Value Chain
According to the reports provided by IEA, a 7% surge in LNG production is colliding with the severe maritime chokepoint closures, leading to disruption of nearly 20% of marine gas supply which creates an adverse effect on the midstream market. This tight environment has triggered record-high gas prices, forcing international industries to cut back on consumption.
Petroleum Planning and Analysis Cell (PPAC) shows, that India has offset a 4.3% drop in domestic upstream production by scaling up midstream LNG imports, this has led to a 7.8% increase in the total national gas availability.
The Gas Value Chain: From Wellhead to Market
Natural gas follows a structurally similar but technically distinct value chain from crude oil. In the upstream, gas is explored, discovered, and produced through field development and production, but unlike crude, natural gas cannot be pumped across oceans in pipelines. To enable long-distance maritime transport, it must first be converted into Liquefied Natural Gas (LNG), a process that involves super-cooling gas to approximately 162°C, reducing its volume by around 600 times. This LNG is then loaded onto purpose-built LNG tankers for shipment to receiving terminals where it undergoes the process of regasification before being distributed through domestic pipeline networks. In the downstream, the gas flows into two principal downstream pathways. The first is the petrochemical route, where natural gas serves as a feedstock for specialised chemical manufacturing, and depending on the derivative pathway, the outputs can include solid fuels, motor fuels, jet fuel, and lubricants. The second is direct consumption as fuel used for power generation, residential cooking gas (LPG and piped natural gas), and industrial heating.
Scope of Automation in Oil and Gas
Across all three streams, that is the upstream, midstream, and downstream, automation is no longer a future ambition. Industry automation in oil and gas rests on three foundational pillars. The first is productivity improvement, which involves deploying automated systems that execute tasks faster, with fewer errors, and with less human intervention and automated drilling systems, for instance, adjust parameters in real time, improving penetration rates and reducing non-productive time on the rig.
The second pillar is efficiency improvement, aiming at reducing waste, downtime, and energy consumption through predictive and prescriptive analytics, which uses sensor data and machine learning to anticipate equipment failure before it occurs, is now one of the most widely deployed automation applications across the value chain.
The third pillar is customer experience, particularly relevant in the downstream and retail segments, where AI-powered demand forecasting, digital self-service, and personalised pricing are reshaping how products reach end-users.
From wellhead to retail pump, the oil and gas industry functions as a single, interdependent value chain. As trade routes shift and automation rewires operations, a new era begins which is defined by unprecedented volatility and rapid transformation.
The companies that will lead the next chapter are those that master the full architecture of the value chain, anticipate disruption, and embrace cutting-edge technologies, and build strategic partnerships that make resilience possible.
