U. S. crude slate gets heavier, higher in sulfur

Journal Article · Mon Sep 09 04:00:00 EDT 1991 · Oil and Gas Journal; (United States)

OSTI ID:5792017

Swain, E J ^[1]

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1. Bechtel Corp., Houston, TX (US)

This paper reports that historical records of API gravities and sulfur contents of crude oil runs to U.S. refineries show that the quality of the U.S. crude oil pool is worsening. This trend has, of course, been influenced by the increasing capability of U.S. refiners to process heavier and higher-sulfur crudes, the availability of such crudes, and, at times, attractive differentials between them and lighter crudes. Ten years ago, the U.S. Department of Energy (DOE) started to report monthly and yearly composite values of API gravity and sulfur content for crude oils processed in refinery districts and Petroleum Administration for Defense (PAD) districts. The 10-year history of annual composite values for API gravity and sulfur content is shown in Table 1, for the U.S. in total, and by PAD district (PADD). A simple regression analysis was conducted on each set of data and plotted to see how well actual data matched straight-line calculated data. If the calculated trend line tracks the actual data, then it is reasonable to extrapolate the trend for the next 3-5 years.

• OSTI ID: 5792017
• Journal Information: Oil and Gas Journal; (United States), Journal Name: Oil and Gas Journal; (United States) Vol. 89:36; ISSN OIGJA; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000* -- Petroleum-- Properties & Composition
API GRAVITY
COMPILED DATA
DATA
DENSITY
DEVELOPED COUNTRIES
ENERGY SOURCES
FOSSIL FUELS
FUELS
INFORMATION
MATHEMATICS
NATIONAL ORGANIZATIONS
NORTH AMERICA
NUMERICAL DATA
PAD DISTRICTS
PETROLEUM
PHYSICAL PROPERTIES
REGRESSION ANALYSIS
STATISTICS
SULFUR CONTENT
US DOE
US ORGANIZATIONS
USA