OilAuthority.com
Sign InList Your Company
CompaniesCareersMarketplaceEquipmentNewsOil PricesRig Search
Oil Authority›Glossary›U›upstream

upstream

Pertaining to equipment, facilities or systems located in the wellbore or production train above the surface choke or Christmas tree.

In the News

Rystad Energy Puts Cumulative Upstream AI Value at $500 Billion Through 2030; Equinor Reports $130 Million Saved in 2025

Exploration & ProductionMay 27, 2026

Cenovus Q1 Upstream Output Hits Record 972,100 BOE Per Day as CEO McKenzie Warns Carbon Deadlock Is Stalling Greenfield Growth

Exploration & ProductionMay 26, 2026

Ghana Secures $3.5 Billion in Offshore Upstream Investment as Tullow Oil and Kosmos Energy Plan 20 New Jubilee and TEN Wells

OffshoreApr 20, 2026
Browse the Oil and Gas Glossary

Related Terms

U-tube effect

The U-tube effect in well drilling refers to the hydrosta

ULCC

Abbreviation for ultralarge crude carrier.

Udden-Wentworth scale

The Udden-Wentworth scale is the standard grai

Universal Transverse Mercator grid (UTM)

<div data-title="Universal Transverse Mercator Grid (UTM): Definition, Well Location Referencing, and Coordinate Systems

Upper Kelly Cock

A valve installed above the kelly that can be closed manually to protect the rotary hose from high pressure in the drill

ultra heavy oil

(noun) Crude oil with an API gravity of less than 10 degrees and a viscosity typically exceeding 10,000 centipoise at re

ultra-long spaced electrical log

The ultra-long spaced electrical lo

ultrafine

Referring to any particle in the size range 2 to 44 microns.

OilAuthority.com

Edited by Adam Humphreys

The international oil & gas network — news, careers, rig search, marketplace, glossary, and company profiles.

Explore

  • Companies
  • Rig Search
  • Careers
  • Heavy Equipment
  • Marketplace
  • News
  • Oil Glossary

For Business

  • Add a Company
  • Plans & Pricing
  • Claim Your Company
  • Advertise

Account

  • Sign In
  • Create Account
  • Dashboard
  • Edit Profile

© 2026 Oil Authority. All rights reserved.

AboutContactTermsPrivacySecurity