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Filing Detail
Form SC 13D/A - General statement of acquisition of beneficial ownership: [Amend]
SEC Accession No. 0001193125-12-383023
Filing Date
2012-09-06
Accepted
2012-09-06 16:39:57
Documents
1
Group Members
YORKTOWN VI ASSOCIATES LLCYORKTOWN VI CO LP

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13D AMENDMENT NO. 4 d405866dsc13da.htm SC 13D/A 62477
  Complete submission text file 0001193125-12-383023.txt   64308
Mailing Address 1660 LINCOLN STREET SUITE 2700 DENVER CO 80264
Business Address 1660 LINCOLN ST STE 2700 DENVER CO 80264 3038395505
HALLADOR ENERGY CO (Subject) CIK: 0000788965 (see all company filings)

IRS No.: 841014610 | State of Incorp.: CO | Fiscal Year End: 1231
Type: SC 13D/A | Act: 34 | File No.: 005-37955 | Film No.: 121077289
SIC: 1220 Silver Ores

Mailing Address 410 PARK AVENUE 19TH FLOOR NEW YORK NY 10022
Business Address 410 PARK AVENUE 19TH FLOOR NEW YORK NY 10022 212-515-2112
Yorktown Energy Partners VI LP (Filed by) CIK: 0001347504 (see all company filings)

IRS No.: 201384906 | Fiscal Year End: 1231
Type: SC 13D/A