# AAPG Bulletin

Abstract

Volume: 60 (1976)

Issue: 8. (August)

First Page: 1288

Last Page: 1322

Title: Oil and Gas Developments in Maryland, Ohio, Pennsylvania, Virginia, and West Virginia

Author(s): William S. Lytle (2), Jonathan Edwards, Jr. (3), Theodore A. Debrosse (4), E. Perry Bendler (5), Jeffrey B. Hermann (6), William W. Kelley, Jr. (7), Douglas G. Patchen (8)

Abstract:

The CSD District 20 report includes Maryland, Ohio, Pennsylvania, Virginia, and West Virginia.

In Maryland a well testing the Oriskany on Negro Mountain was dry. Natural gas production declined 30% from that of 1974. Total new footage drilled was 24,067.

In Ohio 1,243 new wells were drilled in 1975. Of these, 417 were gas wells, 208 oil wells, 480 combination oil and gas wells, and 115 dry holes. Of the new wells drilled, 98 were exploratory. A total of 1,102 wells was drilled to the Silurian "Clinton-Medina" sandstone; 1,028 were productive. A total of 62 wells was drilled to the Mississippian Berea Sandstone; 54 were productive. The 1975 oil production had a value of $113,916,537 and the gas produced was valued at$60,604,235. Total new footage drilled was 4,953,249.

Pennsylvania's drilling activity increased in 1975 over 1974 by 11% in exploratory drilling and 16% in development drilling. The number of gas wells drilled increased 37% (469 in 1974 to 640 in 1975), and oil wells drilled increased 3% (667 in 1974 to 686 in 1975). A total of 1,362 new wells was drilled and 37 wells were deepened. Crude oil production decreased 6% and gas production increased 3% from that of 1974. There were 15 gas discoveries, the same number as in 1974, and 1 oil discovery. Seismic activity was down from 123 crew-weeks in 1974 to 50 crew-weeks in 1975. Footage drilled in new and deepened wells was 3,524,521, and in gas storage wells 29,966 for a total of 3,554,487.

In Virginia, 36 wells were drilled of which 28 were development and 8 exploratory, representing a decrease of 8% from the 1974 total. Of the 36 wells, 26 were gas, 2 oil, and 8 dry. Natural gas production decreased 5% and oil production increased 8% from that of 1974. Total footage drilled amounted to 168,765, a decrease of 14% from that of 1974.

West Virginia had a substantial increase (19%) in total well completions from 1974 to 1975. Most of the increase was due to the large number of gas storage wells completed, increasing the miscellaneous completions from 16 in 1974 to 168 in 1975. One more deep well was completed in 1975 than in 1974. Exploratory drilling increased 7% and was concentrated on Middle and Upper Devonian exploration objectives in the north-central counties and Mississippian objectives farther west and south. Areas which showed large increases in activity include the area south of Tallmansville field, Upshur County, and Greenbrier and Pocono activity in the tricounty area of Clay, Fayette, and Nicholas. Oil production decreased 6% and gas production decreased 7% from that of 1974. The highlight of the year w s Exxon's Cambrian gas discovery at a depth of 14,300 ft in a 17,675-ft basement test in Jackson County. Total footage drilled was 2,323,235, an increase of 12,792 ft from 1974.

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