Statoil's headquarters are in Stavanger, Norway. Stavanger has long been the hub of Norway’s offshore oil and gas industry, making it the natural home for Statoil’s corporate offices. Oslo is the capital and hosts many national companies, but the executive center for Statoil has traditionally been Stavanger. Bergen and Trondheim are important Norwegian cities, but they have not served as the main headquarters.

When prices are kept below what the market would set, the signals that guide supply and demand get distorted. Oil and gasoline producers earn less per unit, so there’s less incentive to invest in extraction and production. At the same time, the lower price doesn’t curb demand as much as the price would in a free market, so consumption remains strong. Put together, production falls while demand stays relatively high, creating shortages. Nixon’s 1971 oil price controls kept gasoline prices from rising to reflect scarcity. That reduced the incentive to pump oil and refined products, lowering production, while demand stayed high, leading to gasoline shortages and long lines at stations.

The deep-well depth being tested is about identifying the deepest petroleum well ever drilled. The record-holding example is the Tiber prospect, drilled for BP by Transocean's Deepwater Horizon, which reached about 35,055 feet. In drilling terms, that depth is measured depth—the actual length of the borehole along its curved path, not the vertical distance straight down. Because wells can be highly deviated, the measured depth can be longer than the vertical depth to the target. Other options don’t fit this petroleum-well record: one is a famous scientific borehole and not an oil and gas well, and another name doesn’t correspond to a well that reached that depth in a petroleum context. So, the Tiber well at 35,055 feet is the best match for the deepest drilling record in this context.

The difference between the average reservoir pressure and the pressure at the bottom of the well while fluids are flowing is called drawdown. This pressure drop is the driving force that pushes fluids from the rock into the well and up to the surface. The reservoir pressure represents the energy available to push fluids into the pore spaces, while the flowing bottomhole pressure represents the resistance the fluids face as they move through the wellbore. The larger this difference, up to practical limits, the more energy is available to sustain production. This concept is different from overbalance or underbalance, which describe the relation between wellbore pressure and formation pressure in drilling contexts, and from backflow, which is flow in the opposite direction.