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                                                                     EXHIBIT 4.4

                                                                       EXHIBIT C

                 SUMMARY OF RIGHTS TO PURCHASE PREFERRED SHARES

     On February 25, 1999, the Board of Directors of UTI Energy Corp. (the 
"Company") declared a dividend of one Preferred Share purchase right (a 
"Right") for each outstanding share of common stock, par value $.001 per share 
(the "Common Shares"), of the Company and authorized the issuance of one Right 
for each Common Share which shall become outstanding between the Record Date 
and the earlier of the Distribution Date (as hereinafter defined) or the final 
expiration date of the Rights. The dividend is payable on March 10, 1999 (the 
"Record Date") to the stockholders of record on that date. Each Right entitles 
the registered holder to purchase from the Company one share of Series I 
Preferred Stock, par value $.01 per share (the "Preferred Shares"), of the 
Company at a price of $42.50 per one one-thousandth interest in a Preferred 
Share (the "Purchase Price"), subject to adjustment. The description and terms 
of the Rights are set forth in a Rights Agreement (the "Rights Agreement") 
between the Company and ChaseMellon Shareholder Services, L.L.C., as Rights 
Agent (the "Rights Agent").

     Until the earlier to occur of (i) ten business days following a public 
announcement that a person or group of affiliated or associated persons (an 
"Acquiring Person") have acquired beneficial ownership of 15% or more of the 
outstanding Common Shares and (ii) ten business days following the commencement 
of, or announcement of an intention to make, a tender offer or exchange offer 
the consummation of which would result in the beneficial ownership by a person 
or group of 15% or more of such outstanding Common Shares (the earlier of such 
dates being called the "Distribution Date"), the Rights will be evidenced, with 
respect to any Common Share certificate outstanding as of the Record Date, by 
such Common Share certificate. The Rights Agreement provides that, until the 
Distribution Date, the Rights will be transferred with and only with the Common 
Shares.

     Until the Distribution Date (or earlier redemption, exchange or expiration 
of the Rights), new Common Share certificates issued after the Record Date,
upon transfer or new issuance of Common Shares will contain a notation
incorporating the Rights Agreement by reference.

     Until the Distribution Date (or earlier redemption, exchange or 
expiration of the Rights), the surrender for transfer of any certificates for
Common Shares outstanding as of the Record Date also will constitute the
transfer of the Rights associated with the Common Shares represented by such
certificate. As soon as practicable following the Distribution Date, separate
certificates evidencing the Rights ("Right Certificates") will be mailed to
holders of record of the Common Shares as of the close of business on the
Distribution Date and such separate Right Certificates alone will evidence the
Rights.

     The Rights are not exercisable until the Distribution Date. The Rights 
will expire on February 26, 2009, (the "Final Expiration Date"), unless the 
Final Expiration Date is extended or unless the Rights are earlier redeemed or 
exchanged by the Company, in each case, as described below.


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       The Purchase Price payable, and the number of interests in Preferred
Shares or other securities or property issuable, upon exercise of the Rights are
subject to adjustment from time to time to prevent dilution (i) in the event of
a stock dividend on, or a subdivision, combination or reclassification of, the
Preferred Shares, (ii) upon the grant to holders of the Preferred Shares of
certain rights, options or warrants to subscribe for or purchase Preferred
Shares at a price, or securities convertible into Preferred Shares with a
conversion price, less than the then current market price of the Preferred
Shares of (iii) upon the distribution to holders of the Preferred Shares of
evidences of indebtedness or assets (excluding regular periodic cash dividends
paid out of earnings or retained earnings or dividends payable in Preferred
Shares) or of subscription rights or warrants (other than those referred to
above).

       The number of outstanding Rights and the number of one one-thousandth
interests in a Preferred Share issuable upon exercise of each Right are also
subject to adjustment in the event of a stock split of the Preferred Shares or a
stock dividend on the Preferred Shares payable in Preferred Shares or
subdivisions, consolidations or combinations of the Preferred Shares occurring,
in any such case, prior to the Distribution Date.

       Interests in Preferred Shares purchasable upon exercise of the Rights
will not be redeemable. Each Preferred Share will be entitled to a minimum
preferential quarterly dividend payment of $1 per share but will be entitled to
an aggregate dividend of 1,000 times the dividend declared per Common Share. In
the event of a liquidation, the holders of the interests in Preferred Shares
will be entitled to a minimum preferential liquidation payment of $100 per share
but will be entitled to an aggregate payment of 1,000 times the payment made per
Common Share. Each Preferred Share will have 1,000 votes, voting together with
the Common Shares. Finally, in the event of any merger, consolidation or other
transaction in which Common Shares are exchanged, each Preferred Share will be
entitled to receive 1,000 times the amount received per Common Share. These
rights are protected by customary antidilution provisions.

       Because of the nature of the Preferred Shares' dividend, liquidation and
voting rights, the value of the one one-thousandth interest in a Preferred Share
purchasable upon exercise of each Right should approximate the value of one
Common Share.

       In the event the Company is, in effect, acquired in a merger or other
business combination transaction or 50% or more of its consolidated assets or
earning power is sold, proper provision will be made so that each holder of a
Right will thereafter generally have the right to receive, upon the exercise
thereof at the then current exercise price of the Right, that number of shares
of common stock of the acquiring company which at the time of such transaction
will have a market value of two times the exercise price of the Right. In the
event any person becomes an Acquiring Person, proper provision shall be made so
that each holder of a Right, other than Rights beneficially owned by the
Acquiring Person (which will thereafter be null and void for all purposes of the
Rights Agreement and the holder thereof shall thereafter have no rights with
respect to such Rights, whether under the Rights Agreement or otherwise), will
thereafter have the right to receive upon exercise that number of Preferred
Shares having a market value of two times the exercise price of the Right. Under
some


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circumstances, in lieu of Preferred Shares, other equity and debt securities, 
property, cash or combinations thereof, including combinations with Preferred 
Shares, may be issued upon payment of the exercise price if of equal value to 
the number of Preferred Shares for which the Right is exercisable.

     Under certain circumstances, after a Person has become an Acquiring 
Person, the Board of Directors of the Company may exchange the Rights (other 
than Rights that were or are beneficially owned by an Acquiring Person), in 
whole or in part, at an exchange ratio of one Preferred Share per Right 
(subject to adjustment).

     With certain exceptions, no adjustment in the Purchase Price will be 
required until cumulative adjustments require an adjustment of at least 1% in 
such Purchase Price. No fractional Preferred Shares (other than fractions which 
are integral multiples of one one-thousandth of a Preferred Share, which may, 
at the election of the Company be evidenced by depositary receipts) will be 
issued, and in lieu thereof, an adjustment in cash will be made based on the 
market price of the Preferred Shares on the last trading day prior to the date 
of exercise.

     At any time prior to the close of business on the tenth business day after 
the first date of public announcement by the Company or an Acquiring Person
that an Acquiring Person has become such (a "Shares Acquisition Date"), the
Board of Directors of the Company may redeem the Rights in whole, but not in
part, at a price of $.001 per right (the "Redemption Price"), which may be
paid in cash or with Preferred Shares or other consideration deemed
appropriate by the Board of Directors of the Company. Immediately upon any
redemption of the Rights, the right to exercise the Rights will terminate and
the only right of the holders of Rights will be to receive the Redemption
Price.

     Until a Right is exercised, the holder thereof, as such, will have no 
rights as a stockholder of the Company, including, without limitation, the 
right to vote or to receive dividends.

     The terms of the Rights may be amended by the Board of Directors of the 
Company without the consent of the holders of the Rights at any time to cure 
any ambiguity or to correct or supplement any defective or inconsistent 
provisions and may, prior to the Distribution Date, be amended to change or 
supplement any other provision in any manner which the Company may deem 
necessary or desirable. After the Distribution Date, the terms of the Rights 
may be amended (other than to cure ambiguities or correct or supplement 
defective or inconsistent provisions) only so long as such amendment shall not 
adversely affect the interests of the holders of the Rights (which may not be 
an Acquiring Person in whose hands Rights are void).

     A copy of the Rights Agreement has been filed with the Securities and 
Exchange Commission as an Exhibit to a Registration Statement on Form 8-A dated 
__________, 1999. A copy of the Rights Agreement is available free of charge 
from the Company. This summary description of the Rights does not purport to be 
complete and is qualified in its entirety by reference to the Rights Agreement, 
which is hereby incorporated herein by reference.


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