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Form SC 13D - General Statement of Acquisition of Beneficial Ownership:
SEC Accession No. 0000950123-09-046178
Filing Date
2009-09-25
Accepted
2009-09-25 16:59:37
Documents
2
Group Members
YORKTOWN VIII ASSOCIATES LLCYORKTOWN ENERGY PARTNERS VIII, L.P.YORKTOWN VIII COMPANY LP

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13D c90546sc13d.htm SC 13D 61905
2 EXHIBIT 1 c90546exv99w1.htm EX-99.1 7556
  Complete submission text file 0000950123-09-046178.txt   71700
Mailing Address 1660 LINCOLN STREET SUITE 2700 DENVER CO 80264
Business Address 1660 LINCOLN ST STE 2700 DENVER CO 80264 3038395505
HALLADOR PETROLEUM CO (Subject) CIK: 0000788965 (see all company filings)

IRS No.: 841014610 | State of Incorp.: CO | Fiscal Year End: 1231
Type: SC 13D | Act: 34 | File No.: 005-37955 | Film No.: 091088154
SIC: 1311 Crude Petroleum & Natural Gas

Mailing Address 410 PARK AVENUE 19TH FLOOR NEW YORK NY 10022
Business Address 410 PARK AVENUE 19TH FLOOR NEW YORK NY 10022 (212) 515-2100
Yorktown Energy Partners VIII, L.P. (Filed by) CIK: 0001473116 (see all company filings)

IRS No.: 262754039 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13D