January 5, 2006


Brent Bilsland
Sunrise Coal, LLC
6641 State Road 46
Terre Haute, Indiana  47802


     Re:  Sunrise Coal, LLC

Gentlemen:

This letter, effective when executed by the parties hereto, will evidence the
current mutual intent, as set forth in Article 1 below, of Hallador Petroleum
Company, a Colorado corporation ("Hallador"), on the one hand, and Sunrise
Coal, LLC an Indiana limited liability company ("Sunrise"), on the other
hand, for Hallador and Sunrise to enter into an agreement with respect to the
merger of Hallador into a wholly-owned subsidiary of a holding company to be
formed by Hallador and the contribution of the membership interests in
Sunrise to such holding company, and into such documents related thereto as
the Parties deem necessary or appropriate (collectively, the "Transaction
Documents").  Hallador and Sunrise are sometimes referred to individually as
"Party" and collectively as the "Parties."  The proposed formation of the
holding company, the proposed merger of Hallador with a subsidiary of such
holding company, the proposed contribution of the Sunrise membership
interests to the holding company, and the transactions related thereto, are
collectively referred to herein as the "Transactions."

This letter is intended to set forth certain basic terms of the understanding
reached to date and to serve as a basis for further discussions and
negotiations between the Parties with respect to the Transactions and the
Transaction Documents.  The matters set forth in Article 1 are not intended
to and do not constitute a binding agreement of the Parties with respect to
the Transactions or the Transaction Documents.  Any such binding agreement
will arise only upon the negotiation, execution and delivery of mutually
satisfactory definitive agreements and the satisfaction of the conditions set
forth therein, including obtaining satisfactory financing and the approval of
 such agreements by the respective governing authority of each Party.
The matters set forth in Article 2 of this letter do constitute binding
agreements of the Parties.

In consideration of the rights and obligations of the Parties hereunder, and
other good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged by the Parties, the Parties hereby agree as follows:

                                   ARTICLE 1
                                 TRANSACTIONS

1.1  The Transactions.  Hallador shall form a corporation under the laws of
     the State of Delaware ("Holding Co").  Holding Co shall form a wholly-
     owned subsidiary.  Subject to obtaining all required consents and
     approvals, Hallador shall merge with the wholly-owned subsidiary of
     Holding Co, and the members of Sunrise shall contribute their membership
     interests to Holding Co in exchange for shares of Holding Co.
     Subsequent to the proposed merger and contribution, the Hallador
     shareholders and the Sunrise members shall hold stock in Holding Co,
     with Holding Co owning 100% of the outstanding equity of both Sunrise
     and Hallador.  The transaction will also be subject to filing and
     granting of effectiveness of a registration statement on Form S-4 by
     Hallador regarding Holding Co and the Transactions.  The merger of
     Hallador into the Holding Co subsidiary is intended to qualify as a
     "reorganization" under Section 368(a) of the Internal Revenue Code of
     1986, as amended (the "Code"), and the reorganization or merger of
     Hallador into the Holding Co subsidiary, together with the contribution
     by the Sunrise members of their membership interests in Sunrise to
     Holding Co, is intended to qualify as a transaction under Section 351 of
     the Code.

1.2  Transaction Documents.  The Parties shall negotiate the terms and
     conditions of the Transaction Documents in good faith in accordance with
     the transaction terms set forth below:

           Upon the merger of one subsidiary of Holding Co with and into
           Hallador, the Hallador shareholders will exchange their shares of
           Hallador stock for shares of Holding Co stock, receiving one share
           of Holding Co stock for each share of Hallador stock.

           The members of Sunrise will contribute their interests in Sunrise
           to Holding Co in exchange for:

                 9,250,000 shares of common stock of Holding Co

                 an aggregate of $1,500,000 in cash

                 warrants to purchase an aggregate of 1,300,000 shares of
                 common stock of Holding Co at an exercise price determined
                 based on the trading price of Hallador's common stock

           Certain shareholders of Hallador and certain members of Sunrise
           will enter into voting agreements regarding approval of the
           respective merger and contribution.

           Sunrise shall have no more than $15,500,000 of outstanding debt
           under its current bank financing and $2,500,000 of loans from its
           members.

           Holding Co shall obtain bank financing of up to $30,000,000 to
           replace Sunrise's existing bank financing.

           Sunrise shall prepay an aggregate of $1,000,000 of the loans
           extended to Sunrise by certain of its members at the closing of
           the Holding Co bank financing (the remaining aggregate $1,500,000
           of member loans will be repaid in accordance with the terms of
           the loans).

           The bridge loan extended to Sunrise by Hallador shall be paid in
           full or forgiven at the closing of the Transaction.

     Sunrise acknowledges that in connection with services rendered to Hallador
     with respect to the Transactions, Hallador has agreed to pay certain
     compensation consisting of $250,000 in cash, 500,000 shares of common
     stock and warrants to purchase 360,000 shares of common stock, to an
     affiliate of Hallador.  Sunrise further acknowledges that Hallador may
     issue and sell up to 3,181,818 shares of common stock at $2.20 per share
     to private investors prior to the closing of the Transactions.

                                       ARTICLE 2
                                  BINDING AGREEMENTS

1.2  Exclusivity.  This letter shall remain in force and effect until the
     earlier of the date that the Parties enter into definitive Transaction
     Documents, or June 1, 2006 (the "Exclusivity Period").  During the
     Exclusivity Period, none of Sunrise or its members, managers, officers
     or directors will, directly or indirectly, discuss, solicit, pursue,
     negotiate for or commit to any arrangements relating to the sale or
     transfer of membership interests or other equity ownership interest in
     Sunrise or of any of Sunrise's assets.  If this letter is terminated by
     Hallador prior to entering into the Transaction Documents, the
     Exclusivity Period shall also terminate.

2.2  Confidentiality.  The contents of this letter and negotiations hereunder
     are intended to be confidential and are not to be discussed with or
     disclosed to any third person, except (i) Hallador may publicly announce
     it is entering into negotiations with Sunrise with respect to the
     Transactions; (ii) with the express prior written consent of the other
     Party hereto; (iii) as may be required or appropriate in response to any
     summons, subpoena or discovery order or to comply with any applicable
     law, order, regulation, ruling, stock exchange or national market rule;
     provided that (a) the disclosing Party seeks, under applicable law,
     confidential treatment for such information by the governmental or
     regulatory authority or such other recipient, where appropriate, and
     (b) prior to such disclosure, the other Party is given prompt written
     notice of the disclosure requirement so that it may take whatever action
     it deems appropriate, including intervention in any proceeding and the
     seeking of an injunction to prohibit such disclosure; or (iv) to
     financial advisors, legal counsel and other consultants assisting such
     Party, or to third parties in order to obtain such consents or approvals
     from such third parties as may be necessary or desirable.

2.3  Expenses.  Except as expressly set forth herein, each Party shall bear
     its own costs associated with negotiating and performing its obligations
     under this letter.

2.4  Approval.  No Party shall be bound by any Transaction Document until
     (i)such Party's governing body shall have approved the Transaction
     Documents, (ii) such Party shall have executed the Transaction
     Documents, and (iii) all conditions precedent to the effectiveness of
     the Transaction Documents shall have been satisfied, including the
     obtaining of requisite equity and debt financing and the obtaining of
     any and all requisite federal and state regulatory orders or approvals
     in form and substance satisfactory to the Parties.

2.5  Entire Agreement.  This letter constitutes the entire agreement of the
     Parties relating to the subject matter hereof and supersedes all prior
     discussions, agreements or understandings, whether oral or written,
     relating to such subject matter.  There are no other written or oral
     agreements or understandings between the Parties.  Any amendment of this
     letter must be written and signed by both Parties.

2.6  Governing Law.  THIS LETTER SHALL BE GOVERNED AND CONSTRUED IN
     ACCORDANCE WITH THE LAWS OF THE STATE OF COLORADO, WITHOUT GIVING EFFECT
     TO CONFLICT OF LAW PRINCIPLES.

2.7  Non-Inclusive; Non-Binding.  This letter does not contain all matters
     upon which agreement must be reached in order for the Parties to enter
     into the Transaction Documents and consummate the Transactions.  This
     letter does not create and is not intended to create a binding and
     enforceable contract between the Parties with respect to the provision
     of Article 1 and the subject matter of any Transaction Document, and may
     not be relied upon by a Party as the basis for a contract by estoppel or
     otherwise.  A binding commitment with respect to the Transactions and
     the Transaction Documents can only result from the execution and
     delivery of definitive Transaction Documents.

2.8  Relationship of Parties.  The Parties shall not be deemed in a
     relationship of partners or joint venturers by virtue of this letter,
     nor shall either Party be an agent, representative, trustee or fiduciary
     of the other.  Neither Party shall have any authority to bind the other
     to any agreement.

2.9  Attorneys' Fees.  In the event it becomes necessary for either Party to
     file a suit to enforce the binding provisions of this letter, the
     substantially prevailing Party shall be entitled to recover, in addition
     to all other remedies or damages, reasonable attorneys' fees and costs
     incurred.

[Signature page follows]

If the provisions of Article 1 correctly set forth our current understanding
and the provisions of Article 2 set forth our binding agreement, please

execute both originals of this letter in the space provided below, retain one
fully-executed original for your file, and return the other original to the
undersigned.  This letter may be executed in counterparts and by facsimile
(followed by originals as set forth in the foregoing sentence), and all such
counterparts together shall constitute but one agreement.

                                           Very truly yours,

                                           HALLADOR PETROLEUM COMPANY


                                           By:/S/VICTOR P. STABIO
                                               Victor P. Stabio
                                               President and CEO


Acknowledged, Agreed to and Accepted:

SUNRISE COAL, LLC


By:/s/ BRENT K BILSLAND
       Brent K. Bilsland
       Managing Member
       and Attorney-in-Fact