Exhibit 24

                               Power of Attorney
                         For Executing Forms 3, 4 and 5

      Know all by these presents, that the undersigned hereby constitutes and
appoints each of Benjamin W. Hulburt and Christopher K. Hulburt, signing singly,
the undersigned's true and lawful attorney-in-fact to:

      (1)    execute for and on behalf of the undersigned Forms 3, 4 and 5
             (including amendments thereto) in accordance with Section 16(a) of
             the Securities Exchange Act of 1934, as amended (the "Exchange
             Act"), and the rules and regulations thereunder;

      (2)    do and perform any and all acts for and on behalf of the
             undersigned that may be necessary or desirable to complete and
             execute any such Form 3, 4 or 5, complete and execute any amendment
             or amendments thereto, file that Form with the United States
             Securities and Exchange Commission and any stock exchange or
             similar authority, and provide a copy as required by law or
             advisable to such persons as the attorney-in-fact deems
             appropriate; and

      (3)    take any other action of any type whatsoever in connection with the
             foregoing that, in the opinion of the attorney-in-fact, may be of
             benefit to, in the best interest of, or legally required of the
             undersigned, it being understood that the documents executed by the
             attorney-in-fact on behalf of the undersigned pursuant to this
             Power of Attorney will be in such form and will contain such terms
             and conditions as the attorney-in-fact may approve in the
             attorney-in-fact's discretion.

      The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that the attorney -in-fact, or the
attorney-in-fact's substitute or substitutes, will lawfully do or cause to be
done by virtue of this Power of Attorney and the rights and powers herein
granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, and
their substitutes, in serving in such capacity at the request of the
undersigned, are not assuming, nor is Eclipse Resources Corporation, any of the
undersigned's responsibilities to comply with Section 16 of the Exchange Act.

      The undersigned agrees that each such attorney-in-fact may rely entirely
on information furnished orally or in writing by or at the direction of the
undersigned to the attorney-in-fact. The undersigned also agrees to indemnify
and hold harmless Eclipse Resources Corporation and each such attorney-in-fact
against any losses, claims, damages or liabilities (or actions in these
respects) that arise out of or are based upon any untrue statements or omissions
of necessary facts in the information provided by or at the direction of the
undersigned, or upon the lack of timeliness in the delivery of information by or
at the direction of the undersigned, to that attorney-in-fact for purposes of
executing, acknowledging, delivering or filing any Form 3, 4 or 5 (including any
amendment thereto) and agrees to reimburse Eclipse Resources Corporation and the
attorney-in-fact on demand for any legal or other expenses reasonably incurred
in connection with investigating or defending against any such loss, claim,
damage, liability or action.

      This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by Eclipse
Resources Corporation, unless earlier revoked by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact.

      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of the date written below.

                                                          /s/ Matthew R. DeNezza
                                                          ----------------------
                                                                       Signature

                                                              Matthew R. DeNezza
                                                             -------------------
                                                                      Print Name

                                                                   June 19, 2014
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                                                                            Date