Yorktown VII CO LP

Initial Quarterly Form 13F Notice Report filed by institutional managers

Initial Quarterly Form 13F Notice Report filed by institutional managers

Initial Quarterly Form 13F Notice Report filed by institutional managers

Initial Quarterly Form 13F Notice Report filed by institutional managers

Initial Quarterly Form 13F Notice Report filed by institutional managers

Initial Quarterly Form 13F Notice Report filed by institutional managers

Initial Quarterly Form 13F Notice Report filed by institutional managers

Initial Quarterly Form 13F Notice Report filed by institutional managers

Initial Quarterly Form 13F Notice Report filed by institutional managers

Initial Quarterly Form 13F Notice Report filed by institutional managers

HALLADOR PETROLEUM CO: Statement of changes in beneficial ownership of securities

HALLADOR PETROLEUM CO: Initial statement of beneficial ownership of securities