Title from cover.
Some issues include a copy of the CD-ROM publication: Hart's world petroleum trade show.
System requirements for accompanying CD-ROM: IBM PC or compatible; 486/66 or better CPU; 8 Mb of RAM; 5 Mb free hard disc space; Windows 3.x or higher; 2x CD-ROM drive; 640 x 480 video display with HiColor (16-bit or higher recommended), Windows compatible sound card, exernal speakers recommended.
Vols. for 1996-199 have supplement: Oil & gas producing industry in your state (Washington, D.C. : 1994).
Formed by the union of: Gulf Coast oil and gas world, Midcontinent oil and gas world, Northeast oil and gas world, Pacific oil and gas world, Southwest oil and gas world, and: Western oil and gas world.
Absorbed: Petroleum independent with Sept. 1995 issue.
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