- -------------------------------------------------------------------------------

THESE OPTIONS HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 OR STATE
SECURITIES  LAWS.  THESE  OPTIONS  CANNOT  BE  SOLD,  TRANSFERRED,  ASSIGNED  OR
OTHERWISE  DISPOSED OF EXCEPT AS PERMITTED BY THIS  AGREEMENT  AND BY APPLICABLE
FEDERAL AND STATE SECURITIES LAWS.
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                             CELTIC INVESTMENT INC.
                             STOCK OPTION AGREEMENT

     This  Agreement  is entered  into this 31st day of  January,  1997,  by and
between Celtic  Investment,  Inc., a Delaware  corporation  ("Corporation")  and
Roger D. Davis ("Employee").

                                    RECITALS:

         WHEREAS,  Salt Lake Mortgage  ("SLM") and Corporation have entered into
an Employment  Agreement (the "Employment  Agreement") wherein there are jointly
referred to as "Employer"  whereby they have agreed to hire Employee and whereby
Employee  has  agreed  to be  employed  by  Employer  pursuant  to the terms and
conditions set forth therein; and approved by the Board of Directors of Employer
and meets the requirements of SEC Rule 16(b)(3) promulgated under the Securities
Exchange Act of 1934, as amended (the "Exchange Act").

         WHEREAS, under the Employment Agreement,  the Corporation has agreed to
grant stock  options to Employee  entitling  Employee to purchase  shares of the
Corporation's common stock ("Shares"); and

         WHEREAS,  the  purpose of  granting  these  options to  Employee  is to
promote the success of the  Corporation  and SLM and to advance the interests of
the Corporation and SLM by providing an additional  means,  through the grant of
these stock options,  to motivate,  retain and reward Employee with an incentive
for high levels of individual  performance and improved financial performance of
the Corporation and SLM;

NOW THEREFORE, IT IS AGREED AS FOLLOWS:

         1.1  Definitions.  For the  purposes  of  this  Option  Agreement,  the
following terms shall have the following meanings:

                  1.1.1.   Adjusted  Pretax   Profits.   For  purposes  of  this
Agreement,  Adjusted  Pretax Profits shall have the same meaning as "API" has in
the Escrow  Agreement  (hereafter  defined) and shall be  calculated in the same
manner it is calculated in the Escrow Agreement.

     1.1.2.  Bonus Period.  "Bonus Period shall have the same meaning it does in
the Employment Agreement.


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     1.1.3 Escrow Agreement.  "Escrow  Agreement" shall have the same meaning it
does in the Employment Agreement.

     1.1.4.  Termination for Cause.  "Termination For Cause" shall have the same
meaning it does in the Employment Agreement.

     1.1.5. Voluntary Termination.  "Voluntary  Termination" shall have the same
meaning it does in the Employment Agreement.

     1.1.6. Good Reason  Resignation.  "Good Reason  Resignation" shall have the
same meaning it does in the Employment Agreement.

     1.1.7.  Termination Without Cause.  "Termination  Without Cause" shall have
the same meaning it does in the Employment Agreement.

         2.       Grant of Option, Option Types and Exercise Period.

                  2.1 Grant of Options.  Subject to the terms and  conditions of
this  Agreement,  the  Corporation  hereby  grants  to  the  Employee,   options
("Options")  to purchase  from the  Corporation  up to 500,000  Shares  ("Option
Shares") at a price of $3.00 per Share ("Exercise  Price").  The Options granted
hereunder shall be allocated  between Time Based Options,  as defined below, and
Performance Based Options, as defined below.

                  2.2. Time Based  Options.  Options to purchase  150,000 of the
Option Shares (the "Time Based  Options")  shall vest in two equal  installments
("Vesting  Periods") each of which shall entitle the Employee to purchase 75,000
Option Shares. The Time Based Options shall vest as follows:

                                                     Number of
                  Vesting Date                       Option Shares

                  January 31, 1998                   75,000
                  January 31, 1999                   75,000

                  2.3.  Performance  Based  Options.  Options  to  purchase  the
remaining 350,000 Option Shares (the "Performance Based Options") shall vest, if
at all,  over a period of three years and five months  commencing on January 31,
1999 and ending on June 30, 2002.  The vesting  schedule  shall be based on four
periods during which the "Performance Based Options" shall vest and such periods
are as follows:

         Period 1 - Commencing January 31, 1999, ending June 30, 1999.


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         Period 2 - Commencing July 1, 1999, ending June 30, 2000.

         Period 3 - Commencing July 1, 2000, ending June 30, 2001.

         Period 4 - Commencing July 1, 2001, ending January 31, 2002.


         (a) The first group ("First  Option") to purchase 48,611 Option Shares,
shall vest, subject to the achievement of the Performance Criteria for the First
Option, on June 30, 1999. In order for the First Option to vest, Adjusted Pretax
Profits for the twelve  month period  ending on June 30, 1999,  must be not less
than 118% of the Adjusted  Pretax  Profits as stated in the June 30, 1998 fiscal
year ending audited financial statements.

         (b) The second  group  ("Second  Option")  to purchase  116,667  Option
Shares,  shall vest, subject to the achievement of the Performance  Criteria for
the Second  Option,  on June 30, 2000.  In order for the Second  Option to vest,
Adjusted  Pretax  Profits for the twelve month  period  ending on June 30, 2000,
must be not less than 118% of the Adjusted  Pretax Profits as stated in the June
30, 1999 fiscal year ending audited financial statements.

         (c) The third group ("Third Option") to purchase 116,667 Option Shares,
shall vest, subject to the achievement of the Performance Criteria for the Third
Option, on June 30, 2001. In order for the Third Option to vest, Adjusted Pretax
Profits for the twelve  month period  ending on June 30, 2001,  must be not less
than 118% of the Adjusted  Pretax  Profits as stated in the June 30, 2000 fiscal
year ending audited financial statements.

         (d) The fourth  group  ("Fourth  Option")  to  purchase  68,055  Option
Shares,  shall vest subject to the achievement of the  Performance  Criteria for
the Fourth  Options,  on June 30, 2002.  In order for the Fourth Option to vest,
Adjusted  Pretax  Profits for the twelve month  period  ending on June 30, 2002,
must be not less than 118% of the Adjusted  Pretax Profits as stated in the June
30, 2001 fiscal year ending audited financial statements.

                  An example of the operation of the Performance  Criteria is as
follows:  if the Adjusted Pretax Profits for the twelve month period ending June
30, 1999 are $1,000,000,  then in order for the Second Option to vest,  Adjusted
Pretax  Profits must be  $1,180,000  for the 12 month period  ending on June 30,
2000.

                  2.4. No Prorata  Vesting For Performance  Based Options.  Each
group of  Performance  Based  Options  shall vest or be void in total on a group
basis and there shall be no prorata  vesting of Options  within a group.  If the
Performance  Criteria is not met for a group of Performance Based Options,  then
no Options from that group shall vest except for the provisions  provided for in
the employment agreement.

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     2.5.  Exercise  Period.  Once vested under  paragraph 2.2 or 2.3, an Option
shall be exercisable for a period of five years.

         3. ISO's and NSO's. Each Option granted hereunder shall be deemed to be
an Incentive  Stock Option ("ISO") to the maximum amount allowed by the Internal
Revenue Code ("IRC") and a Non-Statutory Stock Option ("NSO'") to the extent not
deemed to be an ISO.

         4.  Exercise of Option.  Each Option  shall become  exercisable  by the
Employee beginning on the date of vesting and must be exercised, if at all prior
to termination  of such Option.  Notwithstanding  the foregoing,  if required in
order to be deemed to be an ISO, a Option shall not become exercisable until six
months  following the date on which  shareholder  approval for this Agreement is
obtained.  The Corporation shall seek shareholder approval of the grant of these
Options at its next meeting of shareholders.

                  4.1. Manner of Exercise. An Option granted hereunder which has
vested,  may be  exercised  in whole or in part by delivery to the  Corporation,
from time to time, of a written  notice signed by the Employee,  specifying  the
number of Option  Shares that the Employee  then  desires to purchase,  together
with  cash,  certified  check,  or  bank  draft  payable  to  the  order  of the
Corporation  or with  some  other  form of  payment  acceptable  to the Board of
Directors of the Corporation,  for an amount equal to the Exercise Price of such
Option  Shares.  Employee  may make  payment of all or a portion of the Exercise
Price in installments over a period of not more than three (3) years and in such
event, the Employee shall deliver a promissory note, in form satisfactory to the
Corporation for the deferred  portion of the Exercise Price secured by a pledge,
also in form satisfactory to the Corporation,  of the Option Shares purchased by
such  exercise of Option.  This pledge  shall  provide  that any sale by pledgee
shall be conducted in a manner as to not give rise to any of the  liability  for
the pledgor  under  Section 16 of the  Exchange  Act.  Employee may pay all or a
portion of the Exercise Price, and/or the tax withholding liability with respect
to the exercise of the Option  either by  surrendering  shares of stock  already
owned by Employee or by withholding  Option  Shares,  provided that the Board of
Directors  of the  Corporation  determines  that the fair  market  value of such
surrendered  stock or  withheld  Option  Shares  is  equal to the  corresponding
portion of such Exercise Price and/or tax withholding liability, as the case may
be, to be paid for therewith.

                  4.2. Certificates.  Promptly after any exercise in whole or in
part of the  Option  by the  Employee,  the  Corporation  shall  deliver  to the
Employee a  certificate  or  certificates  for the number of Option  Shares with
respect to which the Option was so exercised, registered in the Employee's name.

     5.  Representations and Warranties of Employee.  Employee hereby represents
and warrants to the Corporation that:


                                       84





                  5.1.  Information.  Employee has received and read all reports
filed by the  Corporation  with the  Securities  and Exchange  Commission  ("SEC
Reports")  during  1995 and  1996.  Employee  acknowledges  that all  documents,
records and books  pertaining to an investment in the Corporation have been made
available to Employee.

                  5.2.  Legal and Tax Counsel.  Employee has consulted  with his
own attorney and tax advisor regarding legal matters  concerning this Option and
an investment in the Corporation and the tax  consequences of this Option and of
such an investment.

     5.3. No Guaranties. Employee acknowledges that he is aware that there is no
assurance with respect to the profitability of the Corporation.

                  5.4.  Knowledge.  Employee  is, by reason of his  business  or
financial  experience,  capable  of  evaluating  the  merits  and  risks  of  an
investment  in the  Corporation  and of protecting  Employee's  own interests in
connection  with  his  acquisition  of  this  Option  and an  investment  in the
Corporation.

                  5.5. Restricted Option and Shares.  Employee acknowledges that
this Option and the Option Shares are restricted  and will be restricted  unless
registered under applicable  securities laws.  Employee is aware that it may not
be possible to liquidate his  investment in the  Corporation.  Employee  agrees,
that until  registered,  certificates  evidencing the Option Shares shall bear a
legend  restricting the transfer thereof  consistent with the foregoing and that
stock transfer  instructions may be issued to the  Corporation's  transfer agent
restricting the transfer of the Option Shares.

         6. Duration of Option.  Each Option,  granted hereunder,  to the extent
vested and not previously  exercised,  shall  terminate upon the earliest of the
following dates:

                  6.1. Five (5) years from the date of vesting;

                  6.2. If the Employment Agreement is terminated by the Employer
for  cause,  for  reason  of  disability  or for  reason  of death  pursuant  to
paragraphs  2.3, 2.5 or 2.6 of the  Employment  Agreement,  or if the Employment
Agreement is voluntarily terminated by the Employee pursuant to paragraph 2.7 of
the Employment Agreement, then:

                  (a) the Time Based Options for the year of  termination  shall
         be  accelerated  and  shall  vest  immediately   through  the  date  of
         termination  but shall be  prorated.  The number of Time  Based  Option
         Shares  which  Employee  shall  be  entitled  to  purchase  under  this
         paragraph  6.2 shall be prorated on the basis of the  percentage of the
         Vesting  Period which has been  completed as of the date of Termination
         for Cause. An example of this provision, is as follows:


                                       85





                           In the  event  Employee  has a Time  Based  Option to
                  purchase 12,000 Time Based Option Shares which Option vests on
                  the first anniversary date of this Agreement,  and if Employee
                  is terminated  pursuant to  paragraphs  2.3, 2.5 or 2.6 of the
                  Employment Agreement or if there is a Voluntary Termination of
                  the  Employment  Agreement  pursuant to paragraph 2.7 thereof,
                  nine months after the date of of this Agreement, then Employee
                  shall  have the right to  purchase  9,000  Time  Based  Option
                  Shares immediately after the date of such termination pursuant
                  to the applicable terms and conditions of this Agreement.  The
                  right to purchase the remaining 3,000 Time Based Option Shares
                  shall  be  terminated  immediately  as of  the  date  of  such
                  termination.  Employee  shall have no right to  purchase  Time
                  Based Option Shares for any Vesting Period which is subsequent
                  to the Vesting Period in which such termination occurred.

                  (b)  all  previously   vested  Time  Based  Options  shall  be
         exercisable according to the terms of this Agreement;

                  (c) all Time Based Options which have not vested prior to such
         termination  or which do not vest pursuant to paragraph 6.2 (a) hereof,
         shall immediately expire;

                  (d)  the  vesting  of  Performance   Based  Options  shall  be
         accelerated.  The  number of  Performance  Based  Option  Shares  which
         Employee  shall be entitled to purchase  shall be prorated on the basis
         of the  percentage  of the Bonus Period which has been  completed as of
         the date of such termination. The Performance Based Option Shares which
         may be purchased  under this paragraph  6.2(d) will not be determinable
         until  the  completion  of  the  Corporation's   consolidated   audited
         financial  statements  for the Bonus  Period in which such  termination
         occurs. An example of this provision is as follows:

                           If, under this Agreement,  Employee would be entitled
                  to purchase  150,000  Performance  Based Option  Shares had he
                  worked  for  the  entire  Bonus  Period,   and  if  Employee's
                  employment  was  terminated  immediately  after sixty  percent
                  (60%) of the Bonus Period had been  completed,  then  Employee
                  shall be entitled to purchase 90,000 of the Performance  Based
                  Option Shares attributed to such Bonus Period.  Employee shall
                  not be entitled  to  purchase  any  Performance  Based  Option
                  Shares  which  underlie  Performance  Based  Options for Bonus
                  Periods which are subsequent to the Bonus Period in which such
                  termination occurred.

                  (e) all previously  vested  Performance Based Options shall be
         exercisable according to the terms of this Agreement; and


                                       86





                  (f) all Performance  Based Options which have not vested prior
         to such termination or which do not vest pursuant to paragraph 6.2 (d),
         shall immediately expire.

                  6.3. if the  Employee's  employment  is terminated by Employer
Without Cause  pursuant to paragraph 2.4 of the  Employment  Agreement or by the
Good Reason  Resignation by Employee pursuant to paragraph 2.8 of the Employment
Agreement, then:

                  (a) the Time Based  Options  for the  Vesting  Period in which
         such   termination   occurred  shall  be  accelerated  and  shall  vest
         immediately. An example of this provision, is as follows:

                           In the  event  Employee  has a Time  Based  Option to
                  purchase  12,000 shares of Employers  common stock which vests
                  on the  first  anniversary  date  of  this  Agreement,  and if
                  Employee  's  employment   is  Terminated   Without  Cause  or
                  employment is terminated by Employee pursuant to paragraph 2.8
                  of the Employment Agreement nine months after the date of this
                  Agreement,  then Employee shall have the right to purchase all
                  12,000 shares of Employer's common stock immediately after the
                  date of such termination  pursuant to the applicable terms and
                  conditions of this Agreement.  Employee shall have no right to
                  purchase Time Based Option Shares for any Vesting Period which
                  is subsequent to the Vesting Period in which such  termination
                  occurred ;

                  (b)  all  previously   vested  Time  Based  Options  shall  be
         exercisable according to the terms of this Agreement;

                  (c) all Time Based Options which have not vested prior to such
         termination  or which do not vest  pursuant to Section  6.3 (a),  shall
         immediately expire;

                  (d)  the  vesting  of  Performance   Based  Options  shall  be
         accelerated  and the number of  Performance  Based Option  shares which
         Employee is entitled  to purchase  shall be that number of  Performance
         Based Option Shares which  Employee would be entitled to purchase if he
         had been employed during the entire Bonus Period. The Performance Based
         Option Shares which may be purchased  under this paragraph  6.3(d) will
         not  be  determinable   until  the  completion  of  the   Corporation's
         consolidated audited financial statements for the Bonus Period in which
         such termination occurred. An example of this provision is as follows:

                           If, under this Agreement,  Employee would be entitled
                  to purchase  150,000  Performance  Based Option  Shares had he
                  worked  for  the  entire  Bonus  Period,   and  if  Employee's
                  employment was Terminated without

                                       87





                  Cause  or is  terminated  pursuant  to  paragraph  2.8  of the
                  Employment Agreement  immediately after sixty percent (60%) of
                  the Bonus Period had been  completed,  then Employee  shall be
                  entitled to  purchase  all 150,000  Performance  Based  Option
                  Shares attributed to such Bonus Period.  Employee shall not be
                  entitled to purchase any Performance Based Option Shares which
                  underlie Performance Based Options for Bonus Periods which are
                  subsequent  to the  Bonus  Period  in which  such  termination
                  occurred.

                  (e) all previously  vested  Performance Based Options shall be
         exercisable according to the terms of this Agreement; and

                  (f) all Performance  Based Options which have not vested prior
         to such  termination or which do not vest pursuant to paragraph 6.3 (d)
         hereof shall immediately expire.

         7.  Restriction  on Transfer.  This Option is not  transferable  by the
Employee  otherwise  than by  testamentary  will  or the  laws  of  descent  and
distribution and, during the Employee's  lifetime,  may be exercised only by the
Employee or the Employee's guardian or legal representative. Except as permitted
by the  preceding  sentence,  neither  this  Option  nor any of the  rights  and
privileges  conferred  thereby  shall  be  transferred,  assigned,  pledged,  or
hypothecated in any way (whether by operation of law or otherwise),  and no such
option,  right,  or  privilege  shall be subject to  execution,  attachment,  or
similar  process.  Upon any attempt to transfer this Option,  or of any right or
privilege conferred thereby, contrary to the provisions hereof, or upon the levy
of any attachment or similar process upon such option, right, or privilege, this
Option and any such  rights and  privileges  shall  immediately  become null and
void.

         8.  Exercise  in  Event  of  Death  or  Disability.  Whenever  the word
"Employee" is used in any provision of this Agreement under  circumstances  when
the provision should logically be construed to apply to the Employee's guardian,
legal representative,  executor, administrator, or the person or persons to whom
the Option may be transferred by testamentary will or by the laws of descent and
distribution,  the word  "Employee"  shall be deemed to include  such  person or
persons.

         9. No Rights As Shareholder Prior To Exercise.  The Employee shall not,
by virtue hereof, be entitled to any rights of a shareholder in the Corporation,
either at law or  equity.  Prior to  exercise,  the rights of the  Employee  are
limited to those  expressed in this Option and are not  enforceable  against the
Corporation except to the extent set forth herein.

         10.  Registration  of Option  Shares.  The Option  Shares have not been
registered  with the Securities and Exchange  Commission.  The Company shall use
its best efforts to register the the shares  underlying  the options on Form S-8
and keep such Registration in

                                       88





effect with the Securities and Exchange  Commission as soon as practical and not
later than six months from the date hereof.

         11. Anti-Dilution Provisions. The number and kind of Shares purchasable
upon the  exercise  of this  Option and the  exercise  price shall be subject to
adjustment from time to time as follows:

                  11.1. In case the Corporation shall (i) pay a dividend or make
a distribution on the outstanding  Shares payable in Shares,  (ii) subdivide the
outstanding  Shares  into  a  greater  number  of  Shares,   (iii)  combine  the
outstanding   Shares  into  a  lesser  number  of  Shares,   or  (iv)  issue  by
reclassification of the Shares any Shares of the Corporation, the Employee shall
thereafter be entitled,  upon exercise, to receive the number and kind of shares
which, if this Option had been exercised  immediately  prior to the happening of
such event,  the Employee  would have owned upon such exercise and been entitled
to  receive  upon such  dividend,  distribution,  subdivision,  combination,  or
reclassification.

                  11.2. In case the Corporation  shall consolidate or merge into
or with another corporation,  or in case the Corporation shall sell or convey to
any  other  person or  persons  all or  substantially  all the  property  of the
Corporation,  the Employee  shall  thereafter  be entitled,  upon  exercise,  to
receive the kind and amount of shares,  other  securities,  cash,  and  property
receivable upon such consolidation,  merger,  sale, or conveyance by a holder of
the number of Shares  which  might have been  purchased  upon  exercise  of this
Option immediately prior to such consolidation, merger, sale, or conveyance, and
shall have no other conversion  rights. In any such event,  effective  provision
shall be made, in the certificate or articles of  incorporation of the resulting
or surviving corporation,  in any contracts of sale and conveyance, or otherwise
so  that,  so far as  appropriate  and as  nearly  as  reasonably  may  be,  the
provisions  set forth  herein for the  protection  of the rights of the Employee
shall thereafter be made applicable.

                  11.3.  Whenever the number of Shares purchasable upon exercise
of this Option is adjusted  pursuant to this  Section,  the  exercise  price per
Share shall be adjusted  simultaneously  by multiplying  that exercise price per
Share in effect immediately prior to such adjustment by a fraction, of which the
numerator shall be the number of Shares purchasable upon exercise of this Option
immediately prior to such adjustment,  and of which the denominator shall be the
number of Shares so purchasable  immediately after such adjustment,  so that the
aggregate exercise price of this Option remains the same.

                  11.4.  The existence of the Option shall not affect in any way
the right or power of the  Corporation or its  shareholders to make or authorize
any  adjustments,  recapitalization,  reorganization,  or other  changes  in the
Corporation's  capital structure or its business, or any merger or consolidation
of the  Corporation,  or any issue of bonds,  debentures,  preferred shares with
rights greater than or affecting the Shares,  or the  dissolution or liquidation
of the Corporation, or any sale or transfer of all or any part of its

                                       89





assets or business, or any other corporate act or proceeding, whether of a 
similar character or otherwise.

         12. No Waiver of Corporation's Right to Terminate  Employment.  Nothing
in this  Agreement  shall affect in any manner  whatsoever the right or power of
the Corporation or SLM to terminate  Employee's  employment for any reason, with
or without cause.

         13.  Notices.  Any notices  permitted or required  under this Agreement
shall be deemed  given  upon the date of  personal  delivery  or 72 hours  after
deposit in the  United  States  mail,  postage  fully  prepaid,  return  receipt
requested,  addressed to the Corporation at its principal  placement of business
and to Employee at his residence.

         14.  Corporation's  Right to Repurchase Shares. In the event Employee's
employment is Terminated for Cause the  Corporation may repurchase from Employee
any Option Shares purchased by Employee hereunder. The purchase price to be paid
for such shares shall be the Exercise  Price paid by the Employee for the Option
Shares,  plus an eight percent (8%) carrying  cost. The  Corporation's  right to
repurchase  Option Shares  pursuant to this Section 14, shall  terminate  ninety
days from the date of such Termination for Cause. Any Option Shares  repurchased
by the  Corporation  hereunder  shall  be  paid  for  by  certified  funds.  Any
repurchase by the Corporation shall be conducted in a manner as to not give rise
to any liability for the employee under Section 16 of the Exchange Act.

         15.  Right  of  First  Refusal  to  Repurchase  Shares.  In  the  event
Employee's  employment  is Terminated  Without  Cause and in the event  Employee
desires to sell all or a portion of the Option Shares within ninety days of such
termination of employment, the Corporation shall have the first right of refusal
to purchase such shares.  In such event,  the Employee shall give written notice
to the  Corporation of his intent to sell all or a portion of the Option Shares.
After  receiving  such notice,  the  Corporation  shall have twenty (20) days to
purchase from Employee all of the Option Shares which Employee  intends to sell.
Any Option Shares  purchased  hereunder shall be paid for by certified funds and
the price per share shall be the "bid" price of the  Company's  common  stock on
the date of  Employee's  notice of intent to sell,  provided,  however,  that if
Employee  has  received  and  accepted a bona fide offer for the purchase of the
Option  Shares,  the price paid by the  Corporation  shall be the offered price,
rather the "bid" price.

         16.  Miscellaneous

     16.1.  Governing Law. This Agreement  shall be governed by and construed in
accordance with the laws of the State of Utah.

     16.2. Titles and Captions. All section titles or captions contained in this
Agreement are for  convenience  only and shall not be deemed part of the context
nor effect the interpretation of this Agreement.

                                       90





     . 16.3. Entire Agreement.  This Agreement contains the entire understanding
between  and among the  parties  and  supersedes  any prior  understandings  and
agreements among them respecting the subject matter of this Agreement.

     16.4.  Binding  Agreement.  This Agreement shall be binding upon the heirs,
executors, administrators, successors and assigns of the parties hereto.

     16.5. Computation of Time. In computing any period of time pursuant to this
Agreement, the day of the act, event or default from which the designated period
of time begins to run shall be included,  unless it is a Saturday,  Sunday, or a
legal  holiday,  in which  event the period  shall  begin to run on the next day
which is not a Saturday,  Sunday,  or legal holiday.  In the event that the last
day of any period  falls on a  Saturday,  Sunday or legal  holiday,  such period
shall  run  until the end of the next day  thereafter  which is not a  Saturday,
Sunday, or legal holiday.

     16.6.  Pronouns and Plurals.  All pronouns and any variations thereof shall
be deemed to refer to the masculine,  feminine,  neuter,  singular, or plural as
the identity of the person or persons may require.

     16.7.  Arbitration.  If at any time during the term of this  Agreement  any
dispute,  difference,  or  disagreement  shall  arise  upon or in respect of the
Agreement,  and  the  meaning  and  construction  hereof,  every  such  dispute,
difference,  and disagreement  shall be referred to a single arbiter agreed upon
by the  parties,  or if no single  arbiter  can be agreed  upon,  an  arbiter or
arbiters  shall  be  selected  in  accordance  with the  rules  of the  American
Arbitration Association and such dispute,  difference,  or disagreement shall be
settled by arbitration in accordance with the then prevailing  commercial  rules
of the American Arbitration Association, and judgment upon the award rendered by
the arbiter may be entered in any court having jurisdiction thereof.

     16.8.  Presumption.  This  Agreement  or any section  thereof  shall not be
construed  against any party due to the fact that said  Agreement or any section
thereof was drafted by said party.

     16.9.  Further  Action.  The parties  hereto shall  execute and deliver all
documents,  provide all  information and take or forbear from all such action as
may be necessary or appropriate to achieve the purposes of the Agreement.

     16.10. Parties in Interest.  Nothing herein shall be construed to be to the
benefit of any third party,  nor is it intended that any provision  shall be for
the benefit of any third party.

     16.11.  Savings  Clause.  If  any  provision  of  this  Agreement,  or  the
application  of such  provision  to any  person or  circumstance,  shall be held
invalid, the remainder of this

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Agreement,  or the  application  of such  provision to persons or  circumstances
other than those as to which it is held invalid, shall not be affected thereby.

         IN WITNESS  WHEREOF,  the parties have executed this  Agreement the day
and year first above-written.

Celtic Investment, Inc.                         Employee:


By    /s/ Douglas P. Morris                     /s/ Roger D. Davis
      Douglas P. Morris, President              Roger D. Davis


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