VERITAS DGC INC
10-K, 1998-10-07
OIL & GAS FIELD EXPLORATION SERVICES
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<PAGE>   1
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   ----------

                                    FORM 10-K
(Mark One)
 X   ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE 
- ---  ACT OF 1934

                     FOR THE FISCAL YEAR ENDED JULY 31, 1998

                                       OR

     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES 
- ---  EXCHANGE ACT OF 1934


               FOR THE TRANSITION PERIOD FROM ________ TO ________

                          COMMISSION FILE NUMBER 1-7427

                                VERITAS DGC INC.
             (Exact name of registrant as specified in its charter)

         DELAWARE                                       76-0343152
(State or other jurisdiction of             (I.R.S. Employer Identification No.)
incorporation or organization)

    3701 KIRBY DRIVE, SUITE #112
           HOUSTON, TEXAS                                  77098
(Address of principal executive offices)                (Zip Code)
                                 (713) 512-8300
              (Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

    Title of each class                Name of each exchange on which registered
    -------------------                -----------------------------------------
Common Stock, $.01 Par Value                     New York Stock Exchange
Preferred Stock Purchase Rights                  New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days. YES  X  NO
                                       ---    ---
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

The aggregate market value of the registrant's voting stock held by
non-affiliates of the registrant was $______________________ as of September 30,
1998.

The number of shares of the Company's common stock, $.01 par value, (the "Common
Stock"), outstanding at September 30, 1998 was 22,785,516 (including 1,506,863
Veritas Energy Services Inc. exchangeable shares which are identical to the
Common Stock in all material respects).

The registrant's proxy statement to be filed in connection with the registrant's
1998 Annual Meeting of Stockholders is incorporated by reference into Part III
of this report.


<PAGE>   2



                                TABLE OF CONTENTS

                                    FORM 10-K

<TABLE>
<CAPTION>

   Item                                                                              Page Number
   ----                                                                              -----------
<S>      <C>                         <C>                                             <C>
                                    PART I

1        Business
           General                                                                       1
           Industry Overview                                                             1
           Services and Markets                                                          2
           Technology and Capital Expenditures                                           6
           Competition and Other Business Conditions                                     7
           Backlog                                                                       7
           Significant Customers                                                         7
           Employees                                                                     7
2        Properties                                                                      8
3        Legal Proceedings                                                               8
4        Submission of Matters to a Vote of Security Holders                             8

                                    PART II

5        Market for Registrant's Common Equity and Related Stockholder Matters           9
6        Selected Consolidated Financial Data                                           10
7        Management's Discussion and Analysis of Financial Condition and
            Results of Operations                                                       11
8        Consolidated Financial Statements and Supplementary Data                       15
9        Changes in and Disagreements with Accountants on Accounting
             and Financial Disclosure                                                   44

                                    PART III

10       Directors and Executive Officers of the Registrant                             44
11       Executive Compensation                                                         44
12       Security Ownership of Certain Beneficial Owners and Management                 44
13       Certain Relationships and Related Transactions                                 44

                                    PART IV

14       Exhibits, Financial Statement Schedules and Reports on Form 8-K                44

         Signatures                                                                     48
</TABLE>


<PAGE>   3

Unless the context otherwise requires, the number of shares, per share prices,
weighted average number of shares outstanding and per share amounts in this
report have been adjusted to reflect the August 30, 1996 business combination
(the "Combination") with Veritas Energy Services Inc. ("VES"). Unless the
context otherwise requires, all references to the "Company" are to Veritas DGC
Inc. and its subsidiaries and give effect to the consummation of the
Combination. Prior to the consummation of the Combination, the Company's name
was Digicon Inc. ("Digicon"). This report on Form 10-K contains forward-looking
statements that involve risks and uncertainties. The Company's actual results
could differ materially from those anticipated in the forward-looking statements
as a result of certain factors including those set forth under Item 1.
"Business" and Item 7. "Management's Discussion and Analysis of Financial
Condition and Results of Operations - Liquidity and Capital Resources."


                                     PART I

ITEM 1.   BUSINESS

GENERAL

The Company is a leading provider of seismic data acquisition, seismic data
processing, multi-client data sales and exploration and development information
services to the petroleum industry in selected markets worldwide. Oil and gas
companies utilize seismic data for the determination of suitable locations for
drilling exploratory wells and, increasingly, in reservoir management for the
development and production of oil and gas reserves. The Company acquires seismic
data in land, marsh, swamp and tidal ("transition zone") and marine environments
and processes data acquired by its own crews and crews of other operators. The
Company acquires seismic data both on an exclusive contractual basis for its
customers and on its own behalf for licensing to multiple customers on a
non-exclusive basis.

To increase its presence in the market for onshore geophysical services, in
August 1996 the Company completed the Combination with VES, a leading land
seismic contractor. Prior to the Combination, Digicon and VES had complementary
operations with no significant geographic overlap.

Prior to the Combination, the Company had initiated a comprehensive program
designed to refocus each of the Company's geographic and operational lines of
business. The Company's actions included: (i) selling its seismic equipment
manufacturing operations; (ii) selling its joint venture interests in the former
Soviet Union; (iii) deploying its land and transition zone crews and its marine
crews into markets where the Company's presence would be significant; (iv)
expanding its accumulation and sales of multi-client data to capitalize on the
historically higher margins associated with non-exclusive data; (v) emphasizing
research and development on its proprietary software in order to capitalize on
its reputation for seismic data processing innovation; and (vi) streamlining its
cost structure through personnel reduction, office consolidations, vessel
deactivations and the outsourcing of certain development and manufacturing
functions.

Beginning in fiscal 1997, the Company embarked upon an extensive capital
expenditure program designed to increase its efficiency and expand its
operations to improve the competitive position of its principal services and to
enable the Company to capitalize on high-growth/high-margin opportunities in
selected markets.

INDUSTRY OVERVIEW

Geophysical services enable oil and gas companies to determine whether
subsurface conditions are likely to be favorable for finding new oil and gas
accumulations and assist in determining the size and structure of previously
identified fields. These services consist of the acquisition and processing of
three dimensional ("3D") and two dimensional ("2D") seismic and other
geophysical data, which is used to produce computer-generated graphic images of
the subsurface strata. The resulting images are then analyzed and interpreted by
customers' geophysicists and are used by oil and gas companies in 


                                       1
<PAGE>   4

acquisition of new leases, selection of drilling locations on exploratory
prospects and reservoir development and management.

Geophysical data is acquired by land, transition zone and marine crews. In data
acquisition, a source of acoustical energy is employed at or below the earth's
surface and an acoustical wave is produced through the discharge of compressed
air, the detonation of small explosive charges, or other energy generating
techniques. As the acoustical wave travels through the earth, portions are
reflected by variations in the underlying rock layers, and the reflected energy
is captured by sensors situated at intervals along specified paths from the
point of acoustical impulse. The resulting signals are then converted to digital
data and transmitted to a recording unit. This data is then input into a
specialized data processing system that enhances the recorded signal by reducing
noise and distortion and improving resolution and arranges the input data to
produce, with the aid of plotting devices, an image of the subsurface strata. By
interpreting seismic data, oil and gas companies create detailed stratigraphic
maps of prospective areas and producing oil and gas reservoirs.

Three-dimensional surveys involve the acquisition of a very dense grid of
seismic data over a precisely defined area. This heavy concentration of data
requires extensive computer processing, involving the use of sophisticated
proprietary techniques, to produce an accurate image of the subsurface. Computer
analysis of the 3D survey data allows geophysicists to better examine and
interpret important subsurface features.

Over the last several years, worldwide demand for 3D surveys by major oil and
gas companies and independent producers has increased. The greater precision and
improved subsurface resolution obtainable from 3D seismic data have assisted
them in finding new fields and more accurately delineating existing fields, as
well as enhancing existing reservoir management and production monitoring
techniques. Enhanced subsurface resolution obtainable from 3D studies has been a
key factor in improving drilling success ratios and lowering finding and field
extension costs. This improved technology, coupled with advances in drilling and
completion techniques, is enhancing the industry's ability to find and develop
oil and gas reserves.

The industry is experiencing growing demand for 3D multi-client data surveys.
Increased leasing activity and the high costs of drilling exploration and
development wells have created significant demand for large-scale surveys
employing sophisticated data processing techniques. The relatively expensive
cost of acquiring and processing this data has prompted many oil and gas
companies to participate in multi-client data surveys to reduce their
geophysical expenses.

SERVICES AND MARKETS

The Company acquires seismic data in land, transition zone and marine
environments and processes data acquired from its own crews as well as data
acquired by other geophysical crews. The Company currently operates 13 land
crews, 3 transition zone crews and 9 marine crews in selected markets worldwide.
The Company also operates 20 seismic data processing facilities, located in
major oil and gas centers around the world. When performing geophysical services
under contract for oil and gas companies, the Company may be employed to acquire
and/or process geophysical data. Under these arrangements, the Company's entire
work-product belongs to the contracting party. The Company also acquires and
processes geophysical data for its own account, preserving its work-product in a
data library for later licensing on a non-exclusive basis. When acquiring data
for its library, the Company seeks pre-funding commitments for a large portion
of the cost of such surveys from multiple clients.



                                       2
<PAGE>   5
The following tables set forth the Company's revenues by service group and
geographical area:

<TABLE>
<CAPTION>
  REVENUES BY SERVICE GROUP(1)                    Years Ended July 31,
                                           ----------------------------------
                                             1998         1997         1996
                                           --------     --------     --------
                                                 (In thousands of dollars)
  <S>                                           <C>          <C>          <C>
  Land and transition zone acquisition     $229,754     $175,837     $117,667
  Marine acquisition                         85,852       64,429       54,360
  Data processing                            91,999       74,107       55,566
  Data library sales                        121,354       48,342       23,003
                                           --------     --------     --------
                 Total                     $528,959     $362,715     $250,596
                                           ========     ========     ========
  </TABLE>

<TABLE>
<CAPTION>
  REVENUES BY GEOGRAPHICAL AREA               Years Ended July 31,
                                     ----------------------------------
                                       1998         1997          1996
                                     --------     --------     --------
                                           (In thousands of dollars)
  <S>                               <C>           <C>          <C>     
  United States(2)                   $281,223     $184,013     $ 98,875
  Canada                               47,059       52,141       47,423
  Latin America                        93,494       51,157       36,346
  Europe                               51,089       42,798       37,394
  Middle East                          13,632        2,403
  Asia Pacific                         42,462       30,203       30,558
                                     --------     --------     --------
            Total                    $528,959     $362,715     $250,596
                                     ========     ========     ========
</TABLE>

(1) Revenues from data acquisition and data processing services are recognized
    based on contractual rates set forth in the related contract if the contract
    provides a separate rate for each service provided. If the contract only
    provides a rate for the overall service, revenues are recognized based on
    the percentage of each service group's cost to total cost.

(2) Includes export sales of $458, $4,115 and $4,774 in fiscal 1998, 1997 and
    1996, respectively.

In fiscal 1998, 1997 and 1996, 47%, 50% and 62%, respectively, of the Company's
revenues were attributable to international operations and export sales. See
Note 16 of Notes to Consolidated Financial Statements for additional
geographical information.

Geophysical services are marketed from the Company's corporate offices and from
its regional administrative centers by personnel whose duties also typically
include technical, supervisory or executive responsibilities. Contracts are
obtained either through competitive bidding in response to invitations for bids,
by direct negotiation with the prospective customer or through the initiation by
the Company of surveys for its data library, which surveys are then offered for
license on a non-exclusive basis.

Contracts for exclusive data acquisition involve payments on either a turnkey
method, time basis or on a combination of both methods. Under the turnkey
method, payments for services are based upon the amount of data collected or
processed, and the Company bears substantially all of the risk of business
interruption caused by inclement weather and other hazards. When operating on a
time basis, payments are based on agreed rates per unit of time, which may be
expressed in periods ranging from days to months, and certain risks of business
interruption (except for interruptions caused by failure of the Company's
equipment) are borne by the customer. When a combination of both turnkey and
time methods is used, the risk of business interruption is shared by the Company
and the customer. In each case, progress payments are usually required unless it
is expected that the job can be accomplished in a brief period. In recent years,
the Company's contracts for data acquisition have been predominately on a
turnkey or combination of turnkey/time basis. Substantially all exclusive data
processing work is done on a turnkey basis.

LAND AND TRANSITION ZONE ACQUISITION

The Company's land and transition zone acquisition services are performed with
seismic equipment using the latest technology. The equipment is capable of
collecting both 2D and 3D data, has a combined recording capacity of
approximately 31,000 channels and can be configured to operate up to 22 crews. A
majority of the Company's land and transition zone acquisition services involve
3D surveys. The 


                                       3
<PAGE>   6

Company is currently operating a total of 16 crews: eight in the United States,
two in Canada, two in Argentina, two in Bolivia, one in Oman and one in
Madagascar.

Each crew consists of: a surveying unit which lays out the lines to be recorded
and marks the site for shot-hole placement or equipment location; an explosive
or mechanical vibrating unit; and a recording unit that lays out the geophones
and recording instruments, directs shooting operations and records the
acoustical signal reflected from subsurface strata. On a typical land seismic
survey, the seismic crew is supported by several drill crews, which are
typically furnished by third parties under short-term contracts. Drill crews
operate in advance of the seismic crew and bore shallow holes for explosive
charges which, when detonated by the seismic crew, produce the necessary
acoustical impulse. In locations where the use of explosives is precluded due to
population density, technical requirements or ecological factors, a mechanical
vibrating unit or compressed air is substituted for explosives as the acoustical
source.

The Company uses helicopters to aid its crews in seismic data acquisition in
situations where such use will reduce overall costs and improve productivity. In
a helicopter supported project, seismic lines are cut approximately two meters
wide, compared to five meters wide when trucks are used to move cables,
geophones and personnel. The use of helicopters, which is often required in
areas with rugged terrain and in agricultural areas, results in better access
and reduced surface damage. In such a project, each seismic crew is typically
supported by one or two helicopters specifically suited to seismic acquisition
requirements.

MARINE ACQUISITION

Marine acquisition services are carried out by the Company's crews operating
from chartered vessels (except the Acadian Searcher which was purchased in
December 1997) which have been modified or equipped to the Company's
specifications. All of the vessels operated by the Company are equipped to
perform both 2D and 3D seismic surveys. During the last several years, a
majority of the marine seismic data acquisition services performed by the
Company involved 3D surveys. The following table sets forth certain information
concerning the geophysical vessels currently operated by the Company:

<TABLE>
<CAPTION>
                         YEAR
                        ENTERED
      VESSEL            SERVICE         LOCATION           LENGTH        BEAM
  -------------------   -------    ------------------     --------     -------
  <S>                   <C>        <C>                    <C>          <C>
  Acadian Searcher        1983     Offshore Australia     217 feet     44 feet
  Ross Seal               1987     Offshore Cambodia      176 feet     38 feet
  Polar Search            1992     Gulf of Mexico         300 feet     51 feet
  Pearl Chouest           1995     Gulf of Mexico         210 feet     40 feet
  Cape Romano             1996     Gulf of Mexico         155 feet     36 feet
  Polar Princess          1996     Gulf of Mexico         250 feet     46 feet
  Professor Kurentsov     1997     Offshore Canada        225 feet     41 feet
  Seabulk Veritas         1997     Gulf of Mexico         194 feet     40 feet
  Veritas Viking          1998     North Sea              305 feet     72 feet
</TABLE>

The Polar Search, Polar Princess and Professor Kurentsov are chartered from a
ship operator for initial terms which expire in January 2000, February 2000 and
August 2001, respectively. The Veritas Viking is chartered from a ship owner on
an initial term which expires in June 2006. The Company's other vessels, are
operated under short-term charter arrangements expiring at various times through
1999. These charters contain certain options for the Company to extend terms at
rates closely approximating the expiring terms and rates. Decisions on whether
to extend the expiring vessel charters or enter into charters with other vessel
owners will be made prior to each charter expiration date.

Each vessel generally has an equipment complement consisting of seismic
recording instrumentation, digital seismic streamer cable, cable location and
seismic data location systems, multiple navigation systems, a source control
system which controls the synchronization of the energy source and a firing
system which generates the acoustical impulses. The streamer cable contains
hydrophones that receive the 


                                       4
<PAGE>   7

acoustical impulses reflected by variations in the subsurface strata. Data
acquired by each channel in the digital cable is partially processed before it
is transmitted to recording instruments for storage on magnetic media, thus
reducing subsequent processing time and the effective acquisition costs to the
customer.

At present, three of the Company's vessels are equipped with multiple streamers
and multiple energy sources, which acquire more lines of data with each pass,
reducing completion time and the effective acquisition cost. A three vessel,
multi-boat crew obtains similar benefits by recording the signals generated from
two source arrays on the master vessel with cables towed by each of the master
and two slave vessels. The Veritas Viking, the Company's largest vessel, was
added in fiscal 1998 and is capable of deploying more than 12 seismic streamer
cables. The Company has signed an eight-year charter for another large vessel to
join its fleet, which will be a sister ship to the Veritas Viking and is
expected to begin service in May 1999.

Each marine seismic crew consists of approximately 20 persons, excluding the
ship's captain and ship personnel. Seismic personnel live aboard the ship during
their tours of duty, which are staggered to permit continuous operations. During
seismic operations, the Company's personnel direct the positioning of the vessel
using sophisticated navigational equipment, deploy and retrieve the seismic
streamer cable and energy-source array, and operate all other systems relating
to data collection activities. The Company's personnel do not, however, have
ultimate responsibility for the vessel, which is operated by the captain and
personnel who are employees of the vessel owner.

DATA PROCESSING

The Company currently operates 20 seismic data processing centers capable of
processing 2D, 3D and four dimensional ("4D") data. A majority of the Company's
data processing services are performed on 3D seismic data. At each of the
centers, data received from the field, both from the Company and other
geophysical crews, is processed to produce an image of the earth's subsurface
using proprietary computer software and techniques developed by the Company. The
Company also reprocesses older seismic data using new techniques designed to
enhance the quality of the data. The Company's data processing centers have
opened at various times from 1966 through 1998 and are located in Houston (two
locations), Irving, Austin and Midland, Texas; Denver, Colorado; Oklahoma City,
Oklahoma; Santa Cruz, Bolivia; Singapore; Crawley, England; Calgary, Alberta,
Canada; Brisbane and Perth, Australia; Jakarta, Indonesia; Kuala Lumpur,
Malaysia; Buenos Aires and Neuquen, Argentina; Caracas, Venezuela; Quito,
Ecuador; and Abu Dhabi, U.A.E.

The Company's centers operate high capacity, advanced technology data processing
systems based on NEC, SUN SGI and HP computer systems with high-speed networks.
These systems utilize the Company's proprietary SEISMIC data processing
software. The marine and land data acquisition crews have software identical to
that utilized in the processing centers, allowing for ease in the movement of
data from the field to the data processing centers. The Company operates both
land and marine data processing centers and tailors the equipment and software
deployed in an area to meet the local market demands.

To improve its speed and capacity in processing large 3D and 4D surveys, the
Company installed a NEC supercomputer in its Houston processing center in early
fiscal 1997. The success of this first system led to the installation of a
second in the Crawley center in August 1997 and a third in Singapore in July
1998. These supercomputer installations act as global resources for all of the
Company's data processing operations.

DATA LIBRARY SALES

The Company often acquires and processes data for its own account. The Company
seeks pre-funding commitments from multiple customers for a large portion of the
cost of these surveys thereby lowering investment risk. In recent periods, the
Company has generally received commitments in excess of 70%, 


                                       5
<PAGE>   8
however future market conditions may impact these commitment levels. Once
acquired and processed, these surveys are then licensed for use to other
customers on a non-exclusive basis. Factors considered in determining whether to
undertake such surveys include the availability of initial participants to
underwrite a percentage of the costs, the location to be surveyed, the
probability and timing of future lease, concession and development activity in
the area and the availability, quality and price of competing data.

The relatively expensive cost of acquiring and processing seismic data has
prompted many oil and gas companies to participate in multi-client surveys to
reduce their geophysical expenses. In response to this increased demand, the
Company is adding to its data library, primarily in the Gulf of Mexico, the
North Atlantic Margin and Asia Pacific. While historically the Company's
multi-client data library has been offshore, the Company began adding onshore
surveys in Mississippi, Wyoming and Texas in fiscal 1997. As of July 31, 1998,
the Company's multi-client data library included approximately 1.8 million line
kilometers of survey data.

TECHNOLOGY AND CAPITAL EXPENDITURES

The geophysical industry is highly technical, and the requirements for the
acquisition and processing of seismic data have evolved continuously during the
past 50 years. Accordingly, it is of significance to the Company that its
technological capabilities are comparable or superior to those of its
competitors, whether through continuing research and development, strategic
alliances with equipment manufacturers or by acquiring technology under license
from others. The Company has introduced several technological innovations in its
geophysical service business that have become industry standard practice in both
acquisition and processing.

Currently, the Company employs approximately 59 persons in its research and
development activities, substantially all of whom are scientists, engineers or
programmers. During fiscal 1998, 1997 and 1996, research and development
expenditures were $6.2 million, $3.7 million, and $3.2 million, respectively.

The Company rarely applies for patents on internally developed technology. This
policy is based upon the belief that most proprietary technology, even where
regarded as patentable, can be more effectively protected by maintaining
confidentiality than through disclosure and a patent enforcement program.
Certain of the equipment, processes and techniques used by the Company are
subject to the patent rights of others, and the Company holds non-exclusive
licenses with respect to a number of such patents. While the Company regards as
beneficial its access to others' technology through licensing, the Company
believes that substantially all presently licensed technology could be replaced
without significant disruption to the business should the need arise.

The capital expenditure program for fiscal 1999 requires expenditures of
approximately $95.2 million, and another $8.2 million is budgeted for research
and development activities. The level of future capital expenditures will depend
on the availability of funding and market requirements as dictated by oil and
gas company activity levels.

The following table sets forth a summary of the Company's capital expenditures:

<TABLE>
<CAPTION>
                                                Years Ended July 31,
                                         -------------------------------
                                          1998        1997         1996
                                         -------     -------     -------
                                            (In thousands of dollars)
<S>                                      <C>         <C>         <C>    
Land and transition zone acquisition     $29,207     $38,024     $15,020
Marine acquisition                        43,599      34,482       7,757
Data processing                           24,701      19,743       8,394
Other                                      2,042       3,801       1,689
                                         -------     -------     -------
Total                                    $99,549     $96,050     $32,860
                                         =======     =======     =======
</TABLE>


                                       6
<PAGE>   9

COMPETITION AND OTHER BUSINESS CONDITIONS

The acquisition and processing of seismic data for the oil and gas exploration
industry has historically been highly competitive worldwide. As a result of
changing technology and increased capital requirements, the seismic industry has
consolidated substantially since the late 1980's. The largest competitors
remaining in the market are Western Geophysical (a division of Baker Hughes
Inc.), Geco-Prakla (a division of Schlumberger), Compagnie Generale Geophysique
and Petroleum Geo-Services ASA. Management believes the Company is the fifth
largest geophysical services company based on revenues. Competition for
available seismic surveys is based on several competitive factors, including
price, crew experience, equipment availability, technological expertise and
reputation for quality and dependability.

The Company's data acquisition activities often are conducted under extreme
weather and other hazardous conditions. Accordingly, these operations are
subject to risks of injury to personnel and loss of equipment. The Company
carries insurance against the destruction of, or damage to, its chartered
vessels, geophysical equipment and property and injury to persons that may
result from its operations and considers the amounts of such insurance to be
adequate. The Company may not be able to obtain insurance against certain risks
or for equipment located from time to time in certain areas of the world. The
Company obtains insurance against war, expropriation, confiscation and
nationalization when such insurance is available and when management considers
it advisable to do so. Such coverage is not always available and, when
available, is subject to unilateral cancellation by the insuring companies on
short notice. The Company also carries insurance against pollution hazards.

Fixed costs, including costs associated with vessel charters and operating
leases, labor costs, depreciation, and interest expense, account for a
substantial percentage of the Company's costs and expenses. As a result,
downtime or low productivity resulting from reduced demand, equipment failures,
weather interruptions or otherwise, can result in significant operating losses.

BACKLOG

At July 31, 1998, the Company's backlog of commitments for services was $299.8
million, compared with $257.3 million at July 31, 1997. It is anticipated that a
majority of the July 31, 1998 backlog will be completed in the next 12 months.
This backlog consists of written orders or commitments believed to be firm.
Contracts for services are occasionally varied or modified by mutual consent and
in certain instances are cancelable by the customer on short notice without
penalty. As a result of these factors, the Company's backlog as of any
particular date may not be indicative of the Company's actual operating results
for any succeeding fiscal period.

SIGNIFICANT CUSTOMERS

Historically, the Company's principal customers have been international oil and
gas companies, foreign national oil companies and independent oil and gas
companies. No single customer accounted for 10% or more of total revenues during
the years ended July 31, 1998, 1997 and 1996.

EMPLOYEES

At July 31, 1998, the Company had approximately 4,000 full-time employees. With
the exception of 351 unionized employees working at the Singapore data
processing center or on Argentina land crews, none of its employees are subject
to collective bargaining agreements. The Company considers the relations with
its employees to be good.


                                       7
<PAGE>   10

ITEM 2.   PROPERTIES

The Company's headquarters in Houston are located in a 12-story office building
and occupy approximately 106,000 square feet of leased premises. Approximately
38% of this space is devoted to data processing operations, and the balance
houses executive, accounting, research and development and geophysical operating
personnel. The Company leases additional space aggregating approximately 445,000
square feet which is used primarily for seismic data processing operations,
exploration and development information services, geophysical operating
personnel and warehousing in Austin, Galveston, Houston, Irving and Midland,
Texas; Denver, Colorado; New Iberia, Louisiana; Oklahoma City, Oklahoma; Buenos
Aires and Neuquen, Argentina; Brisbane and Perth, Australia; Santa Cruz,
Bolivia; Calgary, Alberta, Canada; Quito, Ecuador; Crawley, England; Kuala
Lumpur, Malaysia; Muscat, Oman; Singapore; Caracas, Venezuela; and Abu Dhabi,
U.A.E. These facilities are conventional office space, except for any
modifications in wiring, air conditioning and lighting necessary to accommodate
computer equipment. Leases covering the Company's facilities expire at varying
times from 1998 through 2013. The Company owns property in Jackson, Mississippi,
comprising 37,551 square feet of office and workshop facilities and in Calgary,
Alberta, Canada comprising 15,000 square feet of office space and maintenance
facilities. Additionally, the Company owns approximately two acres in Calgary,
Alberta, Canada used for equipment storage.


ITEM 3.   LEGAL PROCEEDINGS

As of September 30, 1998, the Company was not a party to, nor was its property
the subject of any material pending legal proceedings, as defined by relevant
rules and regulations of the Securities and Exchange Commission.


ITEM 4.   SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

No matter was submitted to a vote of security holders during the fourth quarter
of the fiscal year ended July 31, 1998.


                                       8
<PAGE>   11
                                     PART II

ITEM 5.   MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

The Company's common stock commenced trading on the New York Stock Exchange
under the symbol "VTS" on September 3, 1996. Prior to that time, the common
stock traded on the American Stock Exchange under the symbol "DGC". The
following table sets forth the reported high and low sales prices for the common
stock on the New York Stock Exchange and the American Stock Exchange, as
appropriate, for the periods shown.

<TABLE>
<CAPTION>
                         Period                High           Low
                       -----------          ---------     ---------
          <S>          <C>                  <C>           <C>
          1998         1st Quarter          $ 50 1/8      $ 25
                       2nd Quarter            47 5/16       26 1/2
                       3rd Quarter            54 1/2        36
                       4th Quarter            60 7/8        30 7/16

          1997         1st Quarter          $ 21 1/2      $ 11 1/2
                       2nd Quarter            25 1/4        16 1/2
                       3rd Quarter            21 1/4        15 1/2
                       4th Quarter            26 5/8        18 1/8
</TABLE>

On September 30, 1998, the last reported sale price of the Company's common
stock on the New York Stock Exchange was $16 11/16 per share. On September 30,
1998, the approximate number of holders of record of common stock was 131.

Historically, the Company has not paid any dividends on its common stock and has
no present plans to pay any dividends. The payment of any future dividends on
common stock would depend, among other things, upon the current and retained
earnings and financial condition of the Company and upon a determination by its
board of directors that the payment of dividends would be desirable. In
addition, the Company's senior notes due October 2003 limit the payment of
dividends. (See Note 4 of Notes to Consolidated Financial Statements.)



                                       9
<PAGE>   12

ITEM 6.   SELECTED CONSOLIDATED FINANCIAL DATA

The following table sets forth selected consolidated financial data as of and
for each of the five years in the period ended July 31, 1998, which has been
restated for the Combination (see Note 2 of Notes to Consolidated Financial
Statements) which was accounted for as a pooling of interests. In addition,
earnings per share for the years ended July 31, 1995 and 1994 have been adjusted
to reflect a one-for-three reverse stock split effected in January 1995.

As a result of the differing year ends of Digicon and VES, results of operations
for dissimilar year ends have been combined. Digicon's results of operations for
fiscal years ended July 31, 1994 and 1995 have been combined with VES' results
of operations for fiscal years ended October 31, 1994 and 1995, respectively. To
conform year ends, Digicon's results of operations for the year ended July 31,
1996 have been combined with VES' results of operations for the twelve months
ended July 31, 1996. Accordingly, VES' operating results for the period August
1, 1995 through October 31, 1995 are included in the years ended July 31, 1995
and 1996. An adjustment in an amount equal to the results of operations for the
three-month period is included in the consolidated statements of changes in
stockholders' equity. VES' revenues, net income and earnings per share and
earnings per share assuming dilution were $22,150,000, $936,000 and $.05,
respectively, for the period August 1, 1995 through October 31, 1995.

<TABLE>
<CAPTION>
                                                                          Years Ended July 31,
                                             ---------------------------------------------------------------------------
                                                1998             1997           1996            1995            1994
                                             -----------     -----------     -----------     -----------     -----------
                                                              (In thousands, except per share amounts)
<S>                                          <C>             <C>             <C>             <C>             <C>        
STATEMENT OF OPERATIONS DATA:
   Revenues                                  $   528,959     $   362,715     $   250,596     $   215,630     $   178,392
   Net income (loss)                              66,958          25,125           1,281           5,594         (10,354)
   Earnings (loss) per common share                 2.96            1.33             .07             .31            (.66)
   Earnings (loss) per common share -               
     assuming dilution                              2.87            1.30             .07             .31            (.66)
</TABLE>

<TABLE>
<CAPTION>
                                                                                As of July 31,
                                             ----------------------------------------------------------------------------
                                                1998             1997            1996            1995            1994
                                             -----------     -----------      -----------     -----------     -----------  
                                                                          (In thousands of dollars)
<S>                                          <C>             <C>             <C>              <C>             <C>   
BALANCE SHEET DATA:
   Total assets                              $   478,490     $   385,089     $   198,592      $  184,340     $  171,814
   Long-term debt (including current       
     maturities)                                  75,561          75,971          41,090          36,788         31,104
</TABLE>


                                       10
<PAGE>   13



ITEM 7.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND 
RESULTS OF OPERATIONS

RESULTS OF OPERATIONS

FISCAL 1998 COMPARED WITH FISCAL 1997

Revenues. Revenues increased 46% from $362.7 million to $529.0 million during
the current year. Although all service groups improved, multi-client data
library sales showed the largest increase at 151%, from $48.4 million to $121.3
million. Over the past two years, as oil and gas companies have moved toward
multi-client surveys to reduce finding costs, the Company has significantly
increased its data library. Sales were mainly from marine surveys in the
deepwater Gulf of Mexico and North Atlantic Margin.

Land and transition zone acquisition revenues increased 31% from $175.8 million
to $229.8 million as a result of additional recording capacity, including the
purchase of equipment to configure up to two crews in Oman and the addition of
one crew in Latin America, and operating efficiencies from upgraded and
standardized equipment. Warmer than usual winter conditions, an extended spring
breakup period and a decrease in deep gas seismic activity in Canada had a
negative impact on revenues.

Marine acquisition revenues increased 33% from $64.4 million to $85.9 million
even though five vessels were in drydock approximately one month each for
regularly scheduled maintenance at various times during the year. The increase
was primarily due to additional streamer capacity and an increase in demand for
multi-client surveys, particularly in the Gulf of Mexico. In addition, the
Company chartered a new vessel beginning June 1998 that set Company production
records.

Data processing revenues increased 24% from $74.1 million to $92.0 million as a
result of increases in market activity, volume of data acquired in 3D surveys
and demand for computer intensive processes such as prestack time and depth
migration. The Company has substantially upgraded its processing centers,
including the addition of a second NEC supercomputer in Crawley, England and
several multi-noded workstations, to meet this increased demand.

Operating Expenses. Costs of services increased 28% from $271.7 million to
$346.9 million, but as a percent of revenues decreased from 75% to 66%. The
improvement in operating margins is mainly attributable to significant sales and
performance of multi-client data surveys that generally have higher margins.
Data processing operating margins also showed improvement due to more efficient
equipment. Land and transition zone margins remained consistent.

Depreciation and Amortization. Depreciation and amortization expense increased
38% from $40.6 million to $56.1 million due to the large increase in capital
expenditures over the past two years.

Selling, General and Administrative. Selling, general and administrative
expenses increased 65% from $11.4 million to $18.8 million resulting primarily
from the addition of staff to support the Company's expanded operations and
costs incurred in implementing new administrative and accounting systems and a
more aggressive marketing strategy.

Interest Expense. Interest expense includes an $800,000 reduction in the current
year for interest capitalized on the build out of the Company's newly chartered
vessel.

Other Income (Expense). Other income (expense) increased from a loss of $630,000
to income of $338,000 primarily from interest income earned on higher average
cash balances. This increase was offset by net foreign currency losses resulting
from fluctuations in foreign money markets.

Income Taxes. Provision for income taxes increased from $6.1 million to $34.2
million as a result of the Company's increased profitability. The effective tax
rate increased from 20% to 34% due to the write-off of certain of the Company's
investments in the prior year.

                                       11
<PAGE>   14


FISCAL 1997 COMPARED WITH FISCAL 1996

Revenues. For fiscal 1997, total revenues increased 45% from $250.6 million to
$362.7 million. Land and transition zone acquisition revenues increased 49% from
$117.6 million to $175.8 million as a result of higher demand, additional
capacity of 9,000 channels and operating efficiencies from upgraded and
standardized equipment. Demand improved significantly in Canada and remained
high during the spring break-up period. Contracts in the Company's other markets
had longer terms, larger channel requirements, better prices and improved
weather protection clauses.

Marine acquisition revenues increased 19% from $54.4 million to $64.4 million
primarily due to increased utilization of the Company's vessels, higher
productivity from the upgrade to Syntron equipment, the addition of the Polar
Princess in the first quarter and another short-term chartered vessel in the
fourth quarter.

Data processing operations increased 33% from $55.6 million to $74.1 million due
to increases in capacity, productivity and volumes of data available for
processing. The Company substantially upgraded its processing centers, installed
a NEC supercomputer in Houston and opened new centers in Abu Dhabi, Australia,
Ecuador and Oklahoma.

Multi-client data sales increased 110% from $23.0 million to $48.4 million due
to expanding customer interest in the Gulf of Mexico, especially deepwater and
sub-salt areas, and North Sea multi-client data surveys.

Operating Expenses. Costs of services increased 37% from $198.7 million to
$271.7 million, but as a percent of revenues decreased from 79% to 75%. The
improvement in operating margins is attributable to higher prices due to
increased market demand, better equipment utilization and higher productivity
for all service groups as discussed above.

Depreciation and Amortization. Depreciation and amortization expense increased
51% from $26.9 million to $40.6 million due to the extensive 1997 capital
expenditure program.

Selling, General and Administrative. Selling, general and administrative
expenses increased 57% from $7.3 million to $11.4 million, resulting primarily
from costs incurred in implementing new administrative and accounting systems,
pursuing a more aggressive marketing strategy and from incentive compensation as
a result of the Company's improved performance.

Interest. Interest expense increased 37% from $5.5 million to $7.5 million due
to increased debt levels required to finance the Company's 1997 capital
expenditure program. The Company issued $75 million of senior notes during the
year.

Merger Related Costs. Merger related costs consist primarily of one month of
investment banking and professional fees and expenses incurred in connection
with the Combination.

Income Taxes. Provision for income taxes increased from $2.0 million to $6.1
million as a result of the Company's increased profitability. However, the
effective tax rate was reduced in the current year by the write-off of certain
of the Company's investments.

Equity in (earnings) loss. Equity in (earnings) loss is related to the
Indonesian joint venture. An increase in marine acquisition surveys and the sale
of multi-client data library account for the increased profitability of the
joint venture in the current year.

LIQUIDITY AND CAPITAL RESOURCES

SOURCES AND USES

The Company's internal sources of liquidity are cash, short-term investments and
cash flow from operations. External sources include the unutilized portion of a
revolving credit facility, public financing, equipment financing and trade
credit.

                                       12
<PAGE>   15

In October 1996, the Company completed a $75.0 million public offering of Senior
Notes due in October 2003 (the "Senior Notes"). The net proceeds from the Senior
Notes were used to retire outstanding indebtedness of the Company and fund a
portion of the Company's capital expenditures in fiscal 1997. The indenture
relating to the Senior Notes (the "Indenture") contains certain covenants,
including covenants that limit the Company's ability to, among other things,
incur additional debt, pay dividends, and complete mergers, acquisitions and
sales of assets. The Company is in compliance with all covenants of the
agreement at July 31, 1998. Upon a change in control of the Company (as defined
in the Indenture), holders of the Senior Notes have the right to require the
Company to purchase all or a portion of such holder's Senior Note at a price
equal to 101% of the aggregate principal amount. Interest is payable
semi-annually.

In July 1998, the Company obtained a new revolving credit facility due July 2001
from commercial lenders that provides advances up to $50.0 million. Advances are
limited by an unsecured borrowing base and bear interest, at the Company's
election, at LIBOR or prime rate plus a margin based on certain ratios
maintained by the Company. Currently, the borrowing base exceeds the maximum
commitment. Covenants in the agreement limit, among other things, the Company's
right to take certain actions, including creating indebtedness. In addition, the
agreement requires the Company to maintain certain financial ratios. The Company
is in compliance with all covenants of the agreement and there were no
outstanding advances as of July 31, 1998.

The Company requires significant amounts of working capital to support its
operations and to fund capital spending and research and development programs.
The Company's foreign operations require greater amounts of working capital than
similar domestic activities, as the average collection period for foreign
receivables is generally longer than for comparable domestic accounts. In
addition, receivables denominated in foreign currencies are subject to
fluctuations in foreign money markets. Approximately 47% of revenues for the
year ended July 31, 1998 were attributable to the Company's foreign operations.
The Company has also increased its participation in multi-client data surveys
and has significantly expanded its multi-client data library. Because of the
lead-time between survey execution and sale, partially funded multi-client data
surveys generally require greater amounts of working capital than contract work.
Depending on the timing of future sales of the data and the collection of the
proceeds from such sales, the Company's liquidity will be affected; however, the
Company believes that these non-exclusive surveys have good long-term sales,
earnings and cash flow potential.

The Company's capital budget for fiscal 1999 is $95.2 million which includes
expenditures of $30.0 million to maintain or replace the Company's current
operating equipment and $65.2 million to expand capacity, including the
outfitting of a new marine seismic vessel. Research and development costs are
estimated at $8.2 million in fiscal 1999.

The Company will require substantial cash flow to continue operations on a
satisfactory basis, complete its capital expenditure and research and
development programs and meet its principal and interest obligations with
respect to outstanding indebtedness. The Company anticipates that cash and
short-term investments, cash flow from operations, the unutilized portion of the
revolving credit facility and borrowings permitted under the Indenture and
revolving credit facility will provide sufficient liquidity to fund these
requirements through fiscal 1999. However, the Company's ability to meet its
obligations depends on its future performance, which, in turn, is subject to
general economic conditions, business and other factors beyond the Company's
control. For example, due to the continuing low price levels of crude oil,
exploration and production expenditures may experience some contraction during
1999, which may affect exploration budgets allocated to seismic expenditures. If
the Company is unable to generate sufficient cash flow from operations or
otherwise to comply with the terms of the revolving credit facility or the
Indenture, it may be required to refinance all or a portion of its existing debt
or obtain additional financing. There can be no assurance that the Company would
be able to obtain such refinancing or financing, or that any refinancing or
financing would result in a level of net proceeds required.

                                       13
<PAGE>   16


OTHER

The Company has prepared a formal plan to address Year 2000 issues as they
relate to the Company's business and its operations. In accordance with that
plan, the Company has evaluated all internal hardware and software used in its
operations, including those used to support the Company's activities, such as
seismic data acquisition and processing equipment and accounting and payroll
systems. In the ordinary course of business, the Company has replaced a
significant amount of its hardware and software with Year 2000 compliant
systems. A replacement schedule has been prepared for its remaining
non-compliant systems and an ongoing monitoring program and contingency
procedures in the event of unanticipated non-compliance problems have been
established. The Company has also identified all external relationships, mainly
suppliers and customers, and mailed each entity an internally prepared
questionnaire regarding Year 2000 issues. Approximately 95% of the
questionnaires have been returned and indicate a state of readiness. The
remaining 5% do not pertain to critical systems. The Company estimates that it
will complete its plan, including remedial actions, by June 30, 1999 and is not
aware of any material contingencies or costs that will be incurred.

Since the Company's quasi-reorganization with respect to Digicon on July 31,
1991, the tax benefits of net operating loss carryforwards existing at the date
of the quasi-reorganization have been recognized through a direct addition to
paid-in capital, when realization is more likely than not. Additionally, the
utilization of the net operating loss carryforwards existing at the date of the
quasi-reorganization is subject to certain limitations. During the year ended
July 31, 1998 the Company recognized $1.6 million related to these benefits, due
to the increased profitability of the Company during the current fiscal year and
anticipated profitability in the next fiscal year. See Note 6 of Notes to
Consolidated Financial Statements.

The Company maintains operations in Europe, which are predominately conducted
from its U.K. offices. Although the U.K. has not currently elected to convert to
the new "euro" currency, the Company does have transactions with companies in
countries that will adopt the new currency. The Company has made a preliminary
assessment and does not anticipate any material effect to the financial
statements as a result of the new currency.

See Note 1 of Notes to Consolidated Financial Statements regarding new
accounting pronouncements not yet adopted.


                                       14
<PAGE>   17



ITEM 8.  CONSOLIDATED FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA




                        REPORT OF INDEPENDENT ACCOUNTANTS


To the Board of Directors and Stockholders of
Veritas DGC Inc.


In our opinion, the accompanying consolidated balance sheets and the related
consolidated statements of income, of changes in stockholders' equity and of
cash flows present fairly, in all material respects, the financial position of
Veritas DGC Inc. and its subsidiaries at July 31, 1998 and 1997 and the results
of their operations and their cash flows for the years then ended in conformity
with generally accepted accounting principles. These financial statements are
the responsibility of the Company's management; our responsibility is to express
an opinion on these financial statements based on our audits. We conducted our
audits of these statements in accordance with generally accepted auditing
standards which require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for the opinion expressed above.





PRICEWATERHOUSECOOPERS LLP

Houston, Texas
October 1, 1998


                                       15
<PAGE>   18

                          INDEPENDENT AUDITORS' REPORT


To the Board of Directors and Stockholders of
Veritas DGC Inc.



We have audited the consolidated statements of income, cash flows and changes in
stockholders' equity of Veritas DGC Inc. and subsidiaries for the year ended
July 31, 1996. These consolidated financial statements are the responsibility of
the Company's management. Our responsibility is to express an opinion on the
consolidated financial statements based on our audit. The consolidated financial
statements give retroactive effect to the merger of Digicon Inc. and Veritas
Energy Services Inc., which has been accounted for as a pooling of interests as
described in Note 2 to the consolidated financial statements. We did not audit
the consolidated statements of income, cash flows and changes in stockholders'
equity of Veritas Energy Services Inc. for the year ended October 31, 1995 or
for the twelve months ended July 31, 1996, which statements reflect total
revenues of $109,996,000 for the year ended October 31, 1995 and $118,591,000
for the twelve months ended July 31, 1996. Those statements were audited by
other auditors whose report has been furnished to us, and our opinion, insofar
as it relates to the amounts included for Veritas Energy Services Inc. for 1995
and 1996, is based solely on the report of such other auditors.

We conducted our audit in accordance with generally accepted auditing standards.
These standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit and the report of the other auditors provide a
reasonable basis for our opinion.

In our opinion, based on our audit and the report of the other auditors, the
consolidated financial statements referred to above present fairly, in all
material respects, the results of operations of Veritas DGC Inc. and
subsidiaries and its cash flows for the year ended July 31, 1996 in conformity
with generally accepted accounting principles.



DELOITTE & TOUCHE LLP

Houston, Texas
October 10, 1996


                                       16
<PAGE>   19


                          INDEPENDENT AUDITORS' REPORT


To the Board of Directors and Stockholders of
Veritas Energy Services Inc.


We have audited the consolidated statements of income, retained earnings and
changes in financial position of Veritas Energy Services Inc. for the nine
months ended July 31, 1996 and for the year ended October 31, 1995 (not
presented separately herein). These consolidated financial statements are the
responsibility of the Company's management. Our responsibility is to express an
opinion on the consolidated financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. These standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statement. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.

In our opinion, these consolidated financial statements present fairly, in all
material respects, the results of operations of the Company and the changes in
its financial position for the nine months ended July 31, 1996 and for the year
ended October 31, 1995 in accordance with Canadian generally accepted accounting
principles.



PRICE WATERHOUSE
Chartered Accountants

Calgary, Alberta
September 20, 1996


                                       17
<PAGE>   20



                        VERITAS DGC INC. AND SUBSIDIARIES

                        CONSOLIDATED STATEMENTS OF INCOME
                    (In thousands, except per share amounts)

<TABLE>
<CAPTION>
                                                                   For the Years Ended July 31,
                                                             ---------------------------------------
                                                                1998           1997           1996
                                                             ---------      ---------      ---------
<S>                                                          <C>            <C>            <C>      
REVENUES                                                     $ 528,959      $ 362,715      $ 250,596

COSTS AND EXPENSES:
    Cost of services                                           346,896        271,656        198,711
    Write-off/write-down for impairment of assets                                              3,628
    Depreciation and amortization                               56,121         40,631         26,921
    Selling, general and administrative                         18,758         11,408          7,255
    Other (income) expense:
        Interest                                                 7,318          7,484          5,466
        Merger related costs                                                      597          3,666
        Other                                                     (338)           630            546
                                                             ---------      ---------      ---------
                  Total costs and expenses                     428,755        332,406        246,193
                                                             ---------      ---------      ---------

Income before provision for income taxes and equity in         100,204         30,309          4,403
     (earnings) loss of 50% or less-owned companies and               
     joint ventures
Provision for income taxes                                      34,218          6,062          2,009
Equity in (earnings) loss of 50% or less-owned companies          
     and joint ventures                                           (972)          (878)         1,113
                                                             ---------      ---------      ---------
NET INCOME                                                   $  66,958      $  25,125      $   1,281
                                                             =========      =========      =========


PER SHARE:
    Earnings per common share                                $    2.96      $    1.33      $     .07
                                                             =========      =========      =========
    Weighted average common shares                              22,594         18,898         17,882
                                                             =========      =========      =========

    Earnings per common share - assuming dilution            $    2.87      $    1.30      $     .07
                                                             =========      =========      =========
    Weighted average common shares - assuming dilution          23,315         19,364         18,095
                                                             =========      =========      =========
</TABLE>

                 See Notes to Consolidated Financial Statements


                                       18
<PAGE>   21


                        VERITAS DGC INC. AND SUBSIDIARIES

                           CONSOLIDATED BALANCE SHEETS
                   (In thousands of dollars, except par value)

<TABLE>
<CAPTION>
                                                                                           July 31,
                                                                                   ------------------------
                                                                                     1998           1997
                                                                                   ---------      ---------
<S>                                                                                <C>            <C>      
                                     ASSETS
Current assets:
     Cash and cash equivalents                                                     $  40,089      $  71,177
     Restricted cash investments                                                         186            550
     Accounts and notes receivable (net of allowance for doubtful accounts:          
        1998, $1,248; 1997, $646)                                                    151,820        120,946
     Materials and supplies inventory                                                  4,106          2,333
     Prepayments and other                                                            16,290         10,429
                                                                                   ---------      ---------
           Total current assets                                                      212,491        205,435

Property and equipment:
     Seismic equipment                                                               206,449        156,264
     Data processing equipment                                                        72,925         54,516
     Seismic ship                                                                      7,534
     Leasehold improvements and other                                                 39,116         29,978
                                                                                   ---------      ---------
           Total                                                                     326,024        240,758
        Less accumulated depreciation                                                151,104        108,004
                                                                                   ---------      ---------
           Property and equipment - net                                              174,920        132,754

Multi-client data library                                                             51,143         20,904
Investment in and advances to joint ventures                                           2,943          2,908
Goodwill (net of accumulated amortization: 1998, $3,233; 1997, $2,725)                 2,655          3,163
Deferred tax asset                                                                    19,157         10,213
Other assets                                                                          15,181          9,712
                                                                                   ---------      ---------
           Total                                                                   $ 478,490      $ 385,089
                                                                                   =========      =========

                      LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
     Current maturities of long-term debt                                          $     289      $     383
     Accounts payable - trade                                                         42,493         39,007
     Accrued interest                                                                  2,234          2,188
     Other accrued liabilities                                                        50,753         38,669
     Income taxes payable                                                             10,682          3,486
                                                                                   ---------      ---------
           Total current liabilities                                                 106,451         83,733

Non-current liabilities:
     Long-term debt - less current maturities                                         75,272         75,588
     Other non-current liabilities                                                     5,071          4,467
                                                                                   ---------      ---------
           Total non-current liabilities                                              80,343         80,055

Commitments and contingent liabilities (See Note 8)

Stockholders' equity:
     Preferred stock, $.01 par value; authorized:1,000,000 shares; none issued
     Common stock, $.01 par value; authorized: 40,000,000 shares; issued:                
        21,278,653 and 19,982,040 shares (excluding 1,505,915 and 2,367,071
        Exchangeable Shares, respectively) at July 31, 1998 and 1997,
        respectively                                                                     213            200
     Additional paid-in capital                                                      202,512        194,764
     Accumulated earnings (from August 1, 1991 with respect to Digicon Inc.)          94,358         27,400
     Cumulative foreign currency translation adjustment                               (3,660)        (1,063)
     Less: Treasury stock, at cost; 50,000 shares at July 31, 1998                    (1,727)
                                                                                   ---------      ---------
        Total stockholders' equity                                                   291,696        221,301
                                                                                   ---------      ---------
           Total                                                                   $ 478,490      $ 385,089
                                                                                   =========      =========
</TABLE>

                 See Notes to Consolidated Financial Statements


                                       19
<PAGE>   22

                        VERITAS DGC INC. AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                            (In thousands of dollars)

<TABLE>
<CAPTION>
                                                                                   For the Years Ended July 31,
                                                                           ------------------------------------------
                                                                                1998           1997           1996
                                                                             ---------      ---------      ---------
<S>                                                                          <C>            <C>            <C>      
OPERATING ACTIVITIES:
     Net income                                                              $  66,958      $  25,125      $   1,281
     Non-cash items included in net income:
        Write-off/write-down for impairment of assets                                                          3,628
        Depreciation and amortization                                           56,121         40,631         26,921
        Amortization of deferred gain on sale/leaseback                                                         (103)
        Loss on disposition of property and equipment                            1,549          1,151            875
        Equity in (earnings) loss of 50% or less-owned companies and            
           joint ventures                                                         (972)          (878)         1,113
        Write-down of multi-client data library to market                          689          2,604          1,774
        Deferred taxes                                                          (7,314)          (924)
        Other                                                                                                     61
     Change in operating assets/liabilities:
        Accounts and notes receivable                                          (30,874)       (55,499)        (9,466)
        Materials and supplies inventory                                        (1,773)          (674)          (241)
        Prepayments and other                                                   (5,861)        (2,230)        (1,807)
        Multi-client data library                                              (30,928)         2,120            574
        Other                                                                   (5,598)        (4,282)           851
        Accounts payable - trade                                                 1,043         11,003            952
        Accrued interest                                                            46          1,875            (96)
        Other accrued liabilities                                               12,084         18,764            796
        Income taxes payable                                                     7,196          1,672           (227)
        Other non-current liabilities                                              604          2,952         (1,541)
     Adjustment to conform fiscal year of Veritas Energy Services Inc.                                        (5,268)
                                                                             ---------      ---------      ---------
           Total cash provided by operating activities                          62,970         43,410         20,077

FINANCING ACTIVITIES:
     Payments of secured term loans                                                           (10,854)
     Payments of long-term debt                                                   (410)       (24,976)       (11,437)
     Borrowings from long-term debt                                                               781          1,500
     Net payments  under credit agreements                                                    (11,458)        (2,665)
     Borrowings from senior notes                                                              75,000
     Debt issue costs                                                                          (2,765)
     Net proceeds from sale of common stock                                      6,131         80,515          4,470
     (Purchase) sale of treasury stock                                          (1,727)                        3,972
                                                                             ---------      ---------      ---------
           Total cash provided (used) by financing activities                    3,994        106,243         (4,160)

INVESTING ACTIVITIES:
     (Increase) decrease in restricted cash investments                            364           (223)           343
     (Increase) decrease in investment in and advances to joint ventures           937           (567)        (2,372)
     Purchase of property and equipment                                        (97,106)       (89,112)       (14,459)
     Sale of property and equipment                                                221          1,037            668
                                                                             ---------      ---------      ---------
           Total cash used by investing activities                             (95,584)       (88,865)       (15,820)
     Currency (gain) loss on foreign cash                                       (2,468)           317           (107)
                                                                             ---------      ---------      ---------
     Change in cash and cash equivalents                                       (31,088)        61,105            (10)
     Beginning cash and cash equivalents balance                                71,177         10,072         10,082
                                                                             ---------      ---------      ---------
     Ending cash and cash equivalents balance                                $  40,089      $  71,177      $  10,072
                                                                             =========      =========      =========
</TABLE>

                 See Notes to Consolidated Financial Statements


                                       20
<PAGE>   23

                        VERITAS DGC INC. AND SUBSIDIARIES

        SUPPLEMENTARY SCHEDULES TO CONSOLIDATED STATEMENTS OF CASH FLOWS
                            (In thousands of dollars)

<TABLE>
<CAPTION>
                                                                                     For the Years Ended July 31,
                                                                                  ---------------------------------
                                                                                   1998         1997         1996
                                                                                  -------      -------      -------
<S>                                                                                <C>           <C>          <C>  
SCHEDULE OF NON-CASH INVESTING AND FINANCING ACTIVITIES: 
    Increase in property and equipment for:
        Accounts and notes receivable - deferred credits utilized                 $            $            $   866
        Execution of equipment purchase obligations                                              6,388       16,963
        Accounts payable - trade                                                    2,443          550          572
    Utilization of net operating losses existing prior to the
       quasi-reorganization resulting in an increase (decrease) in:
        Deferred tax asset valuation allowance                                     (1,630)      (9,867)
        Additional paid-in capital                                                  1,630        9,867

SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
    Cash paid for:
        Interest -
           Senior notes                                                             6,513        3,496
           Equipment purchase obligations                                             113          673        1,878
           Secured term loans                                                                      274          506
           Credit agreements                                                           53          403        1,843
           Other                                                                      603          656        1,286
        Income taxes                                                               33,369        1,891        5,086
</TABLE>


                 See Notes to Consolidated Financial Statements


                                       21
<PAGE>   24


                        VERITAS DGC INC. AND SUBSIDIARIES

           CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996
                            (In thousands of dollars)

<TABLE>
<CAPTION>
                                                                                                   Accumulated      
                                                              Treasury Stock,                       Earnings        Cumulative    
                                   Common Stock Issued           At Cost                         (from August 1,      Foreign     
                                  ----------------------  ----------------------     Additional     1991 with        Currency    
                                                   Par                                Paid-In        respect        Translation   
                                       Shares     Value      Shares       Amount      Capital    to Digicon Inc.)    Adjustment   
                                  -------------- -------  -----------   ---------   -----------  -----------------  -------------
<S>                               <C>            <C>      <C>           <C>         <C>          <C>                <C>       
BALANCE, JULY 31, 1995                11,134,939 $   111     (858,497)  $  (4,772)  $   100,797  $           1,930  $         (66)
Treasury stock issued for cash,
   net of issue costs                                         858,497       4,772          (800)
Common stock issued for cash            
   upon exercise of warrants              29,433                                            530
Common stock issued for cash
   under employee stock option
   plan                                  181,497       2                                  2,448
Common stock certificates
   cancelled                             (11,517)
Registration and filing costs                                                               (30)
Exchangeable stock issued for
   cash under employee stock
   purchase plan -Veritas Energy
   Services Inc.                                                                             12
Exchangeable stock issued for
   cash under employee stock
   option plan -Veritas Energy
   Services Inc.                                                                          1,512
Cumulative foreign currency
   translation adjustment                                                                                                    (868)
Net income                                                                                                   1,281
Adjustment to conform fiscal
   year of Veritas Energy
   Services Inc.                                                                                              (936)
                                  -------------- -------  -----------   ---------   -----------  -----------------  -------------
BALANCE, JULY 31, 1996                11,334,352     113                                104,469              2,275           (934)
Common stock issued for
   exchangeable stock                  4,645,968      47                                    (47)
Common stock issued for cash
   upon exercise of warrants             191,333       2                                  1,029
Common stock issued for cash
   under employee stock option
   plan                                  360,387       3                                  3,121
Common stock issued for cash,
   net of issue costs                  3,450,000      35                                 76,416
Registration and filing costs                                                               (91)
Utilization of net operating
   loss carryforwards existing
   prior to quasi-reorganization                                                          9,867
Cumulative foreign currency
   translation adjustment                                                                                                    (129)
Net income                                                                                                  25,125
                                  -------------- -------  -----------   ---------   -----------  -----------------  -------------
BALANCE, JULY 31, 1997                19,982,040     200                                194,764             27,400         (1,063)
Common stock issued for
   exchangeable stock                    871,818       9                                     (9)
Common stock issued for cash
   upon exercise of warrants              42,000                                            189
Common stock issued for cash
   under employee stock option
   plan                                  326,731       3                                  3,925
Common stock issued for services
   under restricted stock
   agreements                              3,333                                            169
Common stock issued for cash
   under employee stock purchase
   plan                                   52,731       1                                  1,864 
Common stock reacquired for
   cash, including fees                                       (50,000)     (1,727)
Registration and filing costs                                                               (20)
Utilization of net operating
   loss carryforwards existing
   prior to quasi-reorganization                                                           1,630
Cumulative foreign currency
   transaction adjustment                                                                                                  (2,597)
Net income                                                                                                  66,958
                                  -------------- -------  -----------   ---------  ------------  -----------------  -------------
BALANCE, JULY 31, 1998                21,278,653 $   213      (50,000)  $  (1,727) $    202,512  $          94,358  $      (3,660)
                                  ============== =======  ===========   =========  ============  =================  =============
</TABLE>

                 See Notes to Consolidated Financial Statements


                                       22
<PAGE>   25
                        VERITAS DGC INC. AND SUBSIDIARIES

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

1.      SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

CONSOLIDATION

Veritas DGC Inc. (the "Company") provides seismic data acquisition, data
processing, multi-client data sales and exploration and development information
services to the petroleum industry in selected markets worldwide. The
accompanying consolidated financial statements include the accounts of Veritas
DGC Inc., formerly Digicon Inc. ("Digicon"), and all majority-owned domestic and
foreign subsidiaries. Investments in 50% or less-owned companies and joint
ventures are accounted for on the equity method. All material intercompany
balances and transactions have been eliminated. All financial information for
all periods presented prior to the merger on August 30, 1996 between Digicon and
Veritas Energy Services Inc. ("VES") includes the results of VES. (See Note 2.)
The merger has been accounted for as a pooling of interests. Digicon effected a
quasi-reorganization adjustment as of July 31, 1991 in which its accumulated
deficit at July 31, 1991 of $139,751,000 was offset against additional paid-in
capital.

USE OF ESTIMATES

The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities and disclosure of
contingent assets and liabilities at the date of the financial statements and
the reported amounts of revenues and expenses during the reporting period.
Actual results could differ from those estimates.

RECLASSIFICATION OF PRIOR YEAR BALANCES

Certain prior year balances have been reclassified for consistent presentation.

FAIR VALUE OF FINANCIAL INSTRUMENTS

The Company's financial instruments include cash and short-term investments,
restricted cash investments, accounts and notes receivable, accounts payable and
debt. The fair market value of the $75.0 million senior notes included in
long-term debt and $2.2 million of related accrued interest is $78.5 million
based on the present value of total payments due at the high yield corporate
bond rate at July 31, 1998. The carrying value is a reasonable estimate of fair
value for all other instruments.

NEW ACCOUNTING PRONOUNCEMENTS NOT YET ADOPTED

In June 1997, the Financial Accounting Standards Board ("FASB") issued Statement
of Financial Accounting Standards ("SFAS") No. 130, "Reporting Comprehensive
Income." This statement requires disclosure in both annual and interim reporting
of the reporting period's comprehensive income (changes in equity from non-owner
sources), net of the related tax effect, on the face of the consolidated
statement of income, consolidated statement of changes in stockholders' equity
or in a separate statement of comprehensive income and the accumulated balance
of other comprehensive income (comprehensive income excluding net income) as a
separate component in the stockholders' equity section of the consolidated
balance sheet. Classifications included in the accumulated balance are disclosed
on the face of the consolidated balance sheet or statement of changes in
stockholders' equity or in notes to the consolidated financial statements. The
Company's sources of comprehensive income include net income and cumulative
foreign currency translation adjustments. The Company will be required to
implement this statement in fiscal year 1999. Management has not completed its
assessment of how it will present the required information.


                                       23
<PAGE>   26

                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

In June 1997, the FASB issued SFAS No. 131, "Disclosures About Segments of an
Enterprise and Related Information," which will supersede SFAS No. 14,
"Financial Reporting for Segments of a Business Enterprise." It will require the
Company to disclose certain financial information in both annual and interim
reporting about "operating segments" which are components of a company that are
evaluated regularly by management in deciding how to allocate its resources and
in assessing its performance. It also requires disclosure about the countries
from which the Company derives its revenues and in which it employs its
long-lived assets. Major customers will continue to be disclosed. The Company
will be required to implement this statement in fiscal year 1999. Management has
not completed its assessment of how the adoption of this statement will affect
its existing segment disclosures.

In February 1998, the FASB issued SFAS No. 132, "Employers' Disclosures about
Pensions and Other Postretirement Benefits," which will supersede the disclosure
requirements of SFAS No. 87, "Employers' Accounting for Pensions," SFAS No. 88,
"Employers' Accounting for Settlements and Curtailments of Defined Benefit
Pension Plans and for Termination Benefits," and SFAS No. 106, "Employers'
Accounting for Postretirement Benefits Other Than Pensions." This statement
addresses disclosures only and will require the Company to provide a
reconciliation of the beginning and ending balances of the benefit obligation
and the fair value of plan assets in addition to disclosures already presented.
The Company will be required to implement this statement in fiscal year 1999.

TRANSLATION OF FOREIGN CURRENCIES

The Company has determined that the United States ("U.S.") dollar is its primary
functional currency and, accordingly, most foreign entities translate property
and equipment (and related depreciation) and inventories into U.S. dollars at
the exchange rate in effect at the time of their acquisition while other assets
and liabilities are translated at year-end rates. Operating results (other than
depreciation) are translated at the average rates of exchange prevailing during
the year. The remaining foreign entities use the Canadian dollar as their
functional currency and translate all assets and liabilities at year-end
exchange rates and operating results at average exchange rates prevailing during
the year. Adjustments resulting from the translation of assets and liabilities
are recorded in the cumulative foreign currency translation adjustment account
in stockholders' equity. Remeasurement gains and losses are included in the
determination of net income and are reflected in other costs and expenses. (See
Note 13.)


CASH EQUIVALENTS

For purposes of the Consolidated Statements of Cash Flows, the Company has
defined "cash equivalents" as items readily convertible into known amounts of
cash with original maturities of three months or less.

RESTRICTED CASH INVESTMENTS

Restricted cash investments in the amounts of $186,000 and $550,000 at July 31,
1998 and 1997, respectively, were pledged as collateral on certain bank
guarantees related to contracts entered into in the normal course of business.


ACCOUNTS RECEIVABLE

Included in accounts and notes receivable at July 31, 1998 and 1997 are unbilled
amounts of approximately $43,058,000 and $17,308,000, respectively. Such amounts
are either not billable to the customer at July 31 in accordance with the
provisions of the contract and generally will be billed in one to four months or
are currently billable and will be invoiced in the next monthly statement cycle.

                                       24
<PAGE>   27
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

INVENTORIES

Inventories of materials and supplies are stated at the lower of average cost or
market.

PROPERTY AND EQUIPMENT

Property and equipment are recorded at cost. Depreciation is computed using the
straight-line method based on estimated useful lives as follows:

<TABLE>
<CAPTION>
                                           Estimated Useful
                                                 Life
                                           ----------------
<S>                                        <C>
    Seismic equipment                             3-5
    Data processing equipment                       3
    Seismic ship                                    5
    Leasehold improvements and other             3-10
</TABLE>

Expenditures for routine repairs and maintenance are charged to expense as
incurred; expenditures for additions and improvements, including capitalized
interest, are capitalized and depreciated over the estimated useful life of the
related asset. The net gain or loss on property and equipment disposed of is
included in other costs and expenses. (See Note 13.)

In fiscal 1996, the Company recognized impairment of assets in the amount of
$3,628,000 or $.20 per common share and per common share - assuming dilution.
(See Note 12.)

MULTI-CLIENT DATA LIBRARY

The Company collects and processes certain seismic data for its own account to
which it retains all ownership rights and which it resells to clients on a
non-transferable, non-exclusive basis. The Company may obtain precommitted sales
contracts to help fund the cash requirements of these surveys which generally
last from five to seven months. The Company capitalizes associated costs using
an estimated sales method. Under that method the amount capitalized equals
actual costs incurred less costs attributed to the precommitted sales contracts
based on the percentage of total estimated costs to total estimated sales
multiplied by actual sales. The capitalized cost of multi-client data library is
likewise charged to operations in the period subsequent sales occur based on the
percentage of total estimated costs to total estimated sales multiplied by
actual sales. Beginning in fiscal 1997, the Company changed the estimated life
of its multi-client data library so that any costs remaining 24 months after
completion of a survey are charged to operations over a period not to exceed 24
months. The Company periodically reviews the carrying value of the multi-client
data library to assess whether there has been a permanent impairment of value
and records losses when the total estimated costs exceed total estimated sales
or when it is determined that estimated sales would not be sufficient to cover
the carrying value of the asset.

GOODWILL

The Company records the purchase price of businesses or joint venture interests
in excess of the fair value of net assets acquired as goodwill which is
amortized using the straight-line method over a period of 10 to 20 years which
approximates the period benefits are expected to be derived. The Company
periodically reviews the carrying value of goodwill in relation to the current
and expected operating results of the businesses or joint ventures in order to
assess whether there has been a permanent impairment of such amounts.


                                       25
<PAGE>   28
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

MOBILIZATION COST

Transportation and make-ready expenses of seismic operations incurred prior to
commencement of business in an area, that would not have been incurred
otherwise, are deferred and amortized over the lesser of the term of the related
contract or backlog of contracts in that area or one year. Amounts applicable to
operations for the Company's own account are included in the cost of the
multi-client data library. Unamortized mobilization costs are shown as other
assets and totaled $818,000 at July 31, 1998. There were no unamortized
mobilization costs at July 31, 1997.

LEASES

Operating leases include those for office space, specialized seismic equipment
rented for short periods of time, and the Company's seismic ships which
generally are chartered on a short-term basis.

REVENUES

Revenues from data acquisition and data processing services are recognized on
the percentage-of-completion method measured by the amount of data collected or
processed to the total amount of data to be collected or processed or by time
incurred to total time expected to be incurred. Sales from the licensing of
multi-client data surveys are recognized upon delivery of such data based upon
agreed rates set forth in the contract.

RESEARCH AND DEVELOPMENT

Research and development costs are charged to expense when incurred. Research
and development costs for the years ended July 31, 1998, 1997 and 1996 were
$6,196,000, $3,725,000 and $3,193,000, respectively.

STOCK-BASED COMPENSATION

The Company maintains stock-based compensation plans that are accounted for
using the intrinsic value based method allowed by Accounting Principles Board
Opinion No. 25, "Accounting for Stock Issued to Employees," and related
Interpretations. Under that method, compensation expense is recorded in the
accompanying consolidated financial statements when the quoted market price of
stock at the grant date or other measurement date exceeds the amount an employee
must pay to acquire the stock. As required by SFAS No. 123, "Accounting for
Stock-Based Compensation," the effect on net income and earnings per share of
compensation expense that would have been recorded using the fair value based
method is reported through disclosure. (See Note 9.)


EARNINGS PER SHARE

All per share amounts contained herein have been restated in accordance with
SFAS No. 128, "Earnings per Share," which became effective for interim and
annual reporting periods ending after December 15, 1997. This statement requires
the computation of earnings per share based upon weighted average common shares
outstanding and earnings per share - assuming dilution based upon weighted
average common shares outstanding and additional common shares, utilizing the
treasury stock method and average market prices, that would have been
outstanding if dilutive potential common shares had been issued. (See Note 14.)


                                       26
<PAGE>   29
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

2.      BUSINESS COMBINATION

Veritas DGC Inc. was formerly named Digicon Inc. ("Digicon"). On August 30,
1996, Digicon and Veritas Energy Services Inc. ("VES"), a Canadian company,
consummated a business combination (the "Combination"). VES became a wholly
owned subsidiary of Digicon and Digicon changed its name to Veritas DGC Inc.
(the "Company"). As a result of the Combination, each share of VES no par value
common shares outstanding was converted into the right to receive VES no par
value exchangeable stock (the "Exchangeable Stock") at an exchange ratio of 0.8
of a share of Exchangeable Stock per VES common share. All of the holders of VES
common shares, except for those shareholders who perfected and properly
exercised their right to dissent from the Combination and received fair value of
their shares in cash, became holders of Exchangeable Stock and accordingly,
7,023,701 shares of Exchangeable Stock were issued. The aggregate stated capital
of the Exchangeable Stock is equal to the aggregate stated capital immediately
prior to the Combination of the VES common shares that were exchanged or
approximately $30.0 million. The Exchangeable Stock is convertible, at the
discretion of the stockholder, on a one-for-one basis into shares of the
Company's $0.01 par value common stock and their holders have rights identical
to the holders of the Company's common stock. Options to purchase shares of VES
common stock ("VES Option") were converted into options to purchase shares of
the Company's common stock at an exchange ratio of 0.8 of an option in the
Company's common stock per VES Option. (See Note 9.) The VES articles of
amalgamation were amended to reduce the number of authorized VES common shares
to one which is held by the Company.

The Combination has been accounted for as a pooling of interests and,
accordingly, the accompanying consolidated financial statements have been
prepared on a basis that includes the accounts of Digicon and VES. Information
concerning common stock and per share data has been restated on an equivalent
share basis. As a result of the differing year ends of Digicon and VES, results
of operations for dissimilar year ends have been combined. Digicon's results of
operations for the year ended July 31, 1995 have been combined with VES' results
of operations for the year ended October 31, 1995. To conform year ends,
Digicon's results of operations for the year ended July 31, 1996 have been
combined with VES' results of operations for the twelve months ended July 31,
1996 and, accordingly, VES' operating results for the period August 1,1995
through October 31, 1995 are included in the years ended July 31, 1995 and July
31, 1996. An adjustment in an amount equal to the results of operations for this
three-month period is included in the consolidated statements of changes in
stockholders' equity. VES' revenues, net income, and earnings per share and
earnings per share - assuming dilution were $22,150,000, $936,000 and $0.05,
respectively, for the period August 1, 1995 through October 31, 1995.


                                       27
<PAGE>   30
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

Presented below is the effect of the pooling of interests on previously reported
results of operations for the year ended July 31, 1996. Amounts related to VES
have been converted into the Company's reporting currency, U.S. dollars, using
weighted average exchange rates prevailing during the period and reflect
adjustments for differences between U.S. and Canadian generally accepted
accounting principles ("GAAP") and reclassifications to conform financial
statement presentation. Canadian to U.S. GAAP adjustments include adjustments to
(i) write off foreign exchange losses on borrowings which are deferred and
amortized over the period of the debt, decreasing net income by approximately
$173,000 and (ii) reverse the effect of a prior period adjustment, increasing
net income by approximately $102,000. Reclassification of $28,842,000 has been
made to net amounts billed to customers for reimbursable costs against VES'
revenues.

<TABLE>
<CAPTION>
                                            For the Year Ended July 31, 1996
                                            --------------------------------
                                             Revenues           Net Income
                                            ----------         -------------
                                              (In thousands of dollars)
<S>                                          <C>               <C>      
            Digicon                          $ 160,847         $     385
            VES                                118,591               967
            Reclassifications                  (28,842)
            Adjustments                                              (71)
                                             ---------         ---------
                     Total                   $ 250,596         $   1,281
                                             =========         =========
</TABLE>

The Company's earnings per share and earnings per share - assuming dilution as
previously reported was $0.03 and its earnings per share and earnings per share
- -assuming dilution as restated is $0.07.

There were no material adjustments to the net assets of VES as a result of
adopting the same accounting principles as the Company.

During the year ended July 31, 1997 and 1996, the Company incurred and expensed
$597,000 and $3,666,000, respectively, of costs associated with the Combination.
These costs consist primarily of professional fees and include $150,000 payable
to a stockholder who was the former Chairman of the Board of Directors for
consulting services rendered in conjunction with the Combination.


3.     INVESTMENT IN INDONESIAN JOINT VENTURE

Summarized financial information for the Company's 80% owned Indonesian joint
venture (P.T. Digicon Mega Pratama) which is accounted for under the equity
method due to provisions in the joint venture agreement that give minority
shareholders the right to exercise control is as follows:

<TABLE>
<CAPTION>
                                                                              July 31,
                                                                     -------------------------
                                                                       1998             1997
                                                                     --------         --------
                                                                     (In thousands of dollars)
<S>                                                                  <C>              <C>     
         Current assets                                              $  2,740         $  3,697
         Property and equipment, net                                      613               60
         Multi-client data library                                                         228
                                                                     --------         --------
                  Total assets                                       $  3,353         $  3,985
                                                                     ========         ========
                                                                     
         Current liabilities                                         $    410         $  1,077 
         Advances from affiliates                                      13,847           14,784

         Stockholders' deficit:
             Common stock                                               2,576            2,576
             Accumulated deficit                                      (13,480)         (14,452)
                                                                     --------         --------
                  Total stockholders' deficit                         (10,904)         (11,876)
                                                                     --------         --------
                  Total liabilities and stockholders' deficit        $  3,353         $  3,985
                                                                     ========         ========
</TABLE>

                                       28
<PAGE>   31
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

<TABLE>
<CAPTION>
                                                                      For the Years Ended July 31,
                                                                ---------------------------------------
                                                                 1998            1997             1996
                                                                -------         -------         -------
                                                                        (In thousands of dollars)
<S>                                                             <C>             <C>             <C>    
         Revenues                                               $ 3,346         $ 7,240         $ 2,927
         Cost and expenses:
             Cost of services                                     2,378           6,424           3,429
             Depreciation and amortization                          316
             Other                                                 (320)            (62)            (15)
                                                                -------         -------         -------
                  Total                                           2,374           6,362           3,414
                                                                -------         -------         -------
         Income (loss) before provision for income taxes            972             878            (487)
         Provision for income taxes                                                                 166
                                                                -------         -------         -------
         Net income (loss)                                      $   972         $   878         $  (653)
                                                                =======         =======         =======
</TABLE>

4.     LONG-TERM DEBT

The Company's long-term debt is as follows:

<TABLE>
<CAPTION>
                                                                                     July 31,
                                                                            -------------------------
                                                                             1998             1997
                                                                            -------        ----------
                                                                            (In thousands of dollars)
<S>                                                                         <C>            <C>
         Senior notes due October 2003, at 9 3/4%                           $75,000        $75,000
         Equipment purchase obligations maturing
             through September 2000, at a                                   
             weighted average rate of 9.29% at July 31, 1998                    561            971
                                                                            -------        -------
                  Total                                                      75,561         75,971
         Less current maturities                                                289            383
                                                                            -------        -------
                  Due after one year                                        $75,272        $75,588
                                                                            =======        =======
</TABLE>

The senior notes are due in October 2003 with interest payable semi-annually at
9 3/4%. The senior notes are unsecured and are effectively subordinated to
secured debt of the Company with respect to the assets securing such debt and to
all debt of its subsidiaries whether secured or unsecured. The indenture
relating to the senior notes contains certain covenants which limit the
Company's ability to, among other things, incur additional debt, pay dividends
and complete mergers, acquisitions and sales of assets. Upon a change in control
of the Company, as defined in the indenture, the holders of the senior notes
have the right to require the Company to purchase all or a portion of such
holder's senior note at a price equal to 101% of the aggregate principal amount.
The Company has the right to redeem the senior notes, in whole or part, on or
after October 15, 2000. Under certain conditions, the Company may redeem up to
$20.0 million in aggregate principal amount of the senior notes prior to October
15, 1999.

The Company maintained a revolving credit agreement which matured in July 1998
with a commercial bank that provided advances up to $25.0 million of which $20.0
million were secured by substantially all of the receivables of the Company.
Advances bore interest, at the Company's election, at LIBOR plus two percent or
prime rate and were defined by a borrowing formula. In July 1998, the Company
obtained a new revolving credit agreement due July 2001 with commercial lenders
to provide advances up to $50.0 million. Advances are limited by an unsecured
borrowing base and bear interest, at the Company's election, at LIBOR or prime
rate (8.5% at July 31, 1998) plus a margin based on certain ratios maintained by
the Company. Covenants in the agreement limit, among other things, the Company's
right to take certain actions, including creating indebtedness. In addition, the
agreement requires the Company to maintain certain financial ratios. No advances
were outstanding at July 31, 1998 and 1997 under the credit agreements.

                                       29
<PAGE>   32
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

The Company's equipment purchase obligations represent installment loans and
capitalized lease obligations primarily related to computer and seismic
equipment.

Annual maturities of long-term debt for the next five years are as follows:

<TABLE>
<CAPTION>
                                 Annual
                Fiscal Year    Maturities
                -----------   -------------
                              (In thousands
                               of dollars)
                 <S>           <C>
                   1999        $   289
                   2000            240
                   2001             32
                   2004         75,000
                               =======
                  Total        $75,561
                               =======
</TABLE>

During the year ended July 31, 1998, the Company incurred interest costs of
$8,118,000. The Company capitalized $800,000 of this amount as a cost of
leasehold improvements to a chartered vessel. No interest was capitalized during
the years ended July 31, 1997 and 1996.


5.    OTHER ACCRUED LIABILITIES

Other accrued liabilities included $12,216,000 and $8,313,000 of accrued payroll
and benefits and $19,196,000 and $14,263,000 of deferred revenues at July 31,
1998 and 1997, respectively.


6.    INCOME TAXES

Pretax income was taxed under the following jurisdictions:

<TABLE>
<CAPTION>
                                                For the Years Ended July 31,
                                              ----------------------------------------
                                                1998            1997            1996
                                              --------        --------        --------
                                                     (In thousands of dollars)
          <S>                                  <C>             <C>             <C>     
          U.S.                                $ 90,690        $ 21,098        $  9,457
          Foreign                                9,514           9,211          (5,054)
                                              --------        --------        --------
                  Total                       $100,204        $ 30,309        $  4,403
                                              ========        ========        ========
</TABLE>

The provision for income taxes consists of the following:

<TABLE>
<CAPTION>

                                                   For the Years Ended July 31,
                                            ------------------------------------------
                                              1998             1997             1996
                                            --------         --------         --------
                                                     (In thousands of dollars)
           <S>                              <C>              <C>              <C>    
           Current - U.S.                   $ 36,616         $  3,352         $    192
           Deferred - U.S.                    (5,469)          (2,940)             395
           Current - Foreign                   4,952            3,634            2,555
           Deferred - Foreign                 (1,881)           2,016           (1,133)
                                            --------         --------         --------
                  Total                     $ 34,218         $  6,062         $  2,009
                                            ========         ========         ========
</TABLE>


                                       30
<PAGE>   33

                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

A reconciliation of income tax expense computed at the U.S. statutory rate to
the provision reported in the consolidated statements of income is as follows:

<TABLE>
<CAPTION>
                                                                        For the Years Ended July 31,
                                                                 ------------------------------------------
                                                                   1998             1997             1996
                                                                 --------         --------         --------
                                                                          (In thousands of dollars)
<S>                                                              <C>              <C>              <C>     
     Income tax at the statutory rate                            $ 35,071         $ 10,608         $  1,541
                                                                                                     
     Increase (reduction) in taxes resulting from:
       Foreign earnings taxed at other than the U.S.               
         statutory  rate                                           (1,349)           1,806             (131) 
       Write-off of investment                                                      (6,300)          (4,734)
       Contingency                                                  1,036            2,327
       Foreign losses with no tax recovery                                                            4,985
       Foreign tax credit                                          (3,465)
       U.S. tax on Subpart F income and dividends                   1,685
       Employee Nonqualified Stock Option Plan deduction           (1,375)
       U.S. tax on branch operations                                2,567              501
       Prior year tax return to tax provision reconciliation       (1,708)          (3,826)
       Other                                                        1,756              946              348
                                                                 --------         --------         --------
              Total                                              $ 34,218         $  6,062         $  2,009
                                                                 ========         ========         ========
</TABLE>

Deferred taxes result from the effect of transactions that are recognized in
different periods for financial and tax reporting purposes. The primary
components of the Company's deferred tax assets and liabilities are as follows:

<TABLE>
<CAPTION>
                                                                                             July 31,
                                                                                    -------------------------
                                                                                      1998             1997
                                                                                    --------         --------
                                                                                    (In thousands of dollars)
<S>                                                                                 <C>              <C>     
     Deferred tax assets:
          Difference between book and tax basis of property and equipment           $  4,067         $  1,713
          Difference between book and tax basis of multi-client data library          20,402           13,871
          Net operating loss carryforwards                                            36,111           37,539
          Tax credit carryforwards                                                       334            1,629
          Other                                                                         (693)            (630)
                                                                                    --------         --------
              Total                                                                   60,221           54,122
     Deferred tax liabilities                                                           (259)          (1,425)
                                                                                    --------         --------
     Net deferred tax asset                                                           59,962           52,697
     Valuation allowance                                                             (40,805)         (42,484)
                                                                                    --------         --------
     Net deferred tax asset                                                         $ 19,157         $ 10,213
                                                                                    ========         ========
</TABLE>

A valuation allowance is established when it is more likely than not that some
portion or all of the deferred tax assets will not be realized. The valuation
allowance is then adjusted when the realization of deferred tax assets becomes
more likely than not. Adjustments are also made to recognize the expiration of
net operating loss and investment tax credit carryforwards, with equal and
offsetting adjustments to the related deferred tax asset. Should the Company's
income projections result in the conclusion that realization of additional
deferred tax assets is more likely than not, further adjustments to the
valuation allowance are made. Since the Company's quasi-reorganization with
respect to Digicon on July 31, 1991 the tax benefits of net operating loss
carryforwards existing at the date of the quasi-reorganization have been
recognized through a direct addition to paid-in capital, when realization is
more likely than not. The net reduction of approximately $1,679,000 in the
valuation allowance during the current period resulted primarily from
recognition of the expected utilization of net operating loss carryforwards
generated prior to the quasi-reorganization and the expiration of investment tax
credits.

As of July 31, 1998, the Company has U.S. net operating loss carryforwards of
approximately $77,964,000 and investment tax credit carryforwards of
approximately $334,000. Approximately 


                                       31
<PAGE>   34

                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

$53,421,000 of net operating loss carryforwards and all of the investment tax
credit carryforwards existed prior to the quasi-reorganization. The following
schedule sets forth the expiration dates of the U.S. net operating loss and
investment tax credit carryforwards:

<TABLE>
<CAPTION>
                                U.S. Net          Investment
             Fiscal Year      Operating Loss      Tax Credit
             -----------    ----------------      ----------
                              (In thousands of dollars)
                <S>         <C>                   <C>    
                1999        $ 2,209               $   315
                2000          9,406                    19
                2001         30,032
                2003          4,222
                2004          6,355
                2005          1,198
                2006          1,347
                2007          2,505
                2009          7,994
                2010          2,710
                2011          9,986
                            -------               -------
                   Total    $77,964               $   334
                            =======               =======
</TABLE>

Internal Revenue Service regulations restrict the utilization of U.S. net
operating loss carryforwards and other tax benefits (such as investment tax
credits) for any company in which an "ownership change" (as defined in Section
382 of the Internal Revenue Code) has occurred. The Company has performed the
required testing and has concluded that two "ownership changes" have occurred.
The first occurred in connection with the issuance of common stock through a
public offering made by the Company on January 6, 1992. The utilization of U.S.
net operating loss carryforwards existing at the date of the first "ownership
change" is limited to approximately $4,041,000 per year. The second "ownership
change" occurred on August 30, 1996 as a result of the stock acquisition of
Veritas Energy Services Inc. The utilization of U.S. net operating losses
incurred between the first and second ownership changes is limited to
approximately $8,875,000 per year, which includes the limitation of
approximately $4,041,000 from the first ownership change. The second limitation
also applies to the limitation from the first ownership change that accumulated
during the periods between the first and second ownership changes. During the
years ended July 31, 1998 and 1997, the Company utilized approximately
$8,875,000 and $10,983,000 of limitation carryover, respectively. As of July 31,
1998, approximately $11,492,000 of unused limitation carryover remained.

Foreign operations had net operating loss carryforwards of approximately
$25,187,000 at July 31, 1998, of which approximately $14,385,000 existed prior
to the quasi-reorganization. Approximately $16,677,000 of the total foreign net
operating loss carryforwards are related to United Kingdom operations, have an
indefinite carryforward period, and are available to offset future profits in
the Company's current trade or business. Approximately $13,312,000 of the United
Kingdom net operating loss carryforwards existed prior to the
quasi-reorganization. Approximately $4,186,000 of the total foreign net
operating loss carryforwards are related to Oman operations, were generated
after the quasi-reorganization and have a carryforward period of five years.

The Company considers the undistributed earnings of its foreign subsidiaries to
be permanently reinvested. The Company has not provided deferred U.S. income tax
on those earnings, as it is not practicable to estimate the amount of additional
tax that might be payable should these earnings be remitted or deemed remitted
as dividends or if the Company should sell its stock in the subsidiaries.

                                       32
<PAGE>   35
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

7.    DEFERRED CREDITS

In August 1992, the Company entered into agreements with a customer pursuant to
which the Company received certain seismic equipment with a fair value of
approximately $1,792,000 and was obligated to allow $7,800,000 in discounts at
specified rates on future seismic services performed by the Company for such
customer. The Company recorded deferred revenue equal to the fair value of
seismic equipment at the time the equipment was received. The deferred revenue
is amortized as an adjustment to revenues at a rate determined by the ratio of
revenues generated by the customer during a reporting period to total revenues
estimated to be generated by the customer under the agreements. Revenues are
recognized net of discounts allowed as the customer purchases seismic services
eligible for the discounts. At July 31, 1998, there was no remaining
unrecognized deferred revenue and remaining discounts in the amount of
$1,847,000 were available to such customer.

The Company also has $585,000 and $5,022,000 at July 31, 1998 and 1997,
respectively, included in accounts payable-trade relating to deferred credits
earned by certain customers in conjunction with their original participation in
certain of the Company's multi-client data surveys. These credits may be applied
by the customers against future invoiced amounts.


8.    COMMITMENTS AND CONTINGENT LIABILITIES

Total rentals of vessels, equipment and office facilities charged to operations
amounted to $57,476,000, $37,332,000 and $28,210,000 for the years ended July
31, 1998, 1997 and 1996, respectively.

Minimum rentals payable under operating leases, principally for office space and
vessel charters with remaining noncancellable terms of at least one year are as
follows:

<TABLE>
<CAPTION>
                            Fiscal Year     Minimum Rentals
                            -----------  -------------------------
                                         (In thousands of dollars)
                            <S>              <C>    
                                 1999        $37,636
                                 2000         25,214
                                 2001         13,081
                                 2002         10,066
                                 2003          9,988
                                 2004-2013    27,544
</TABLE>

In connection with the Company's 1999 capital expenditure program, the Company
has commitments of approximately $3,000,000 outstanding at July 31, 1998.

On November 25, 1997, the Company entered into a 96-month charter agreement for
a vessel which is being constructed by a shipbuilder for the owner. The charter
is noncancellable unless the owner exercises its right to cancel the
shipbuilding contract due to late delivery (in excess of 180 days of the
scheduled delivery time of May 1999).

The Company has an employment agreement with a former employee, who was also a
director, that contains a non-compete clause for a period of three years ending
December 31, 1998 during which time the former employee will receive payments of
$12,709 per month plus certain employee benefits.

During 1993 the Company purchased occurrence-based workers compensation
insurance. The policies for the years ended August 31, 1998 and 1997 were issued
under a guaranteed cost program and, accordingly, there were no deductibles. The
policy for the year ended August 31, 1996 provided for a maximum deductible of
$1,000,000. Management has evaluated the adequacy of the accrual for the
liability for incurred but unreported workers compensation claims and has
determined that the ultimate 

                                       33
<PAGE>   36
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

resolution of any such claims would not have a material adverse impact on the
financial position of the Company. The Company has letters of credit in the
amount of $4,150,000 at July 31,1998 that will expire upon the completion of
certain events relating to specific contracts.


9.     EMPLOYEE BENEFITS

The Company maintains a 401(k) plan in which employees of the Company's
majority-owned domestic subsidiaries and certain foreign subsidiaries are
eligible to participate. However, employees of foreign subsidiaries who are
covered under a foreign deferred compensation plan are not eligible. Employees
are permitted to make contributions of up to 10% of their salary to a maximum of
$9,500 per year. Generally, the Company will contribute an amount equal to
one-half of the employee's contribution of up to $8,000 or 8% of the employee's
salary (whichever is less); however, if consolidated pre-tax income for any
fiscal year is less than the amount required to be contributed by the Company,
the Company may elect to reduce its contribution, but in no event may it reduce
the total contribution to less than 25% of the employee contribution. The
Company may make additional contributions from its current or cumulative net
profits in an amount to be determined by the Board of Directors. The Company's
matching contributions to the 401(k) plan were $679,000 in 1998, $426,000 in
1997, and $314,000 in 1996.

The Company has an employee nonqualified stock option plan under which options
are granted to officers and key employees. Options generally vest over a period
of time and are exercisable over a ten-year period but may not be exercised
earlier than six months after the grant date. The exercise price for each option
shall not be less than the lesser of (i) the fair market value of the common
stock on the grant date or (ii) the average fair market value of the common
stock during the 30 trading days ending on the trading day next preceding the
grant date. The Company has authorized 1,158,333 shares of common stock to be
issued under the plan.

The Company also has a stock option plan for non-employee directors (the
"Director Plan") under which options are granted to non-employee directors of
the Company. The Director Plan provides that every other year each eligible
director shall be granted options to purchase 10,000 shares of the Company's
common stock. Options vest ratably over four years on the anniversary of the
grant date and are exercisable over ten years. The exercise price for each
option granted is fair market value, as defined. The Company has authorized
600,000 shares of common stock to be issued under the Director Plan.



                                       34
<PAGE>   37
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

At the date of Combination (see Note 2), options to purchase VES Common Stock
("VES Option") were converted into options to purchase shares of the Company's
common stock at an exchange ratio of 0.8 of an option in the Company's common
stock per VES Option. All options are immediately exercisable and expire at
varying times through November 2005.

<TABLE>
<CAPTION>
                                                                    For the Year Ended July 31, 1998
                                                     --------------------------------------------------------------
                                                                                        Weighted         Weighted
                                                                       Weighted       Average Grant       Average
                                                      Number of        Average          Date Fair       Contractual
                                                       Shares       Exercise Price        Value            Life
                                                     ----------     --------------    -------------     -----------
<S>                                                  <C>            <C>               <C>               <C>
    Beginning balance                                1,276,364      $    15.18
    Options granted                                    133,426      $    30.95
    Options exercised                                 (326,733)     $    11.94
    Options forfeited                                  (60,518)     $    19.78
                                                     ---------      
    Ending balance                                   1,022,539      $    18.00
                                                     =========      
    Options exercisable                                366,482      $    12.38
                                                     =========      

    Options granted by range of exercise price:
      Exercise price less than market price              5,954      $    38.30        $    39.56
      Exercise price equal to market price             125,444      $    30.32        $    30.32
      Exercise price more than market price              2,028      $    48.31        $    47.57
                                                     ---------      
                                                       133,426
                                                     =========      

    Ending balance by range of exercise price:
      $ 5.25 - $ 7.28                                  196,201      $     6.45                              6.5
      $13.50 - $20.25                                  735,618      $    18.93                              8.6
      $20.38 - $28.75                                   33,205      $    25.55                              9.0
      $36.06 - $52.81                                   57,154      $    41.17                              9.3
      $55.13 - $56.50                                      361      $    55.95                              9.8
                                                     ---------      
      Ending balance                                 1,022,539
                                                     =========      

    Options exercisable by range of exercise
    price:
      $ 5.25 - $ 7.28                                  196,201      $     6.45
      $13.50 - $20.25                                  151,436      $    17.14
      $20.38 - $28.75                                    6,280      $    25.90
      $36.06 - $52.81                                   12,475      $    40.89
      $55.13 - $56.50                                       90      $    55.95
                                                     ---------      
      Options exercisable                              366,482
                                                     =========      
</TABLE>

                                       35
<PAGE>   38
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

<TABLE>
<CAPTION>
                              For the Year Ended July 31, 1997
                       ----------------------------------------------
                                                          Weighted
                                         Weighted       Average Grant
                       Number of         Average         Date Fair
                         Shares       Exercise Price       Value
                       ---------      --------------    -------------
<S>                      <C>          <C>               <C>
Beginning balance        837,840      $    8.30
Options granted          837,241      $   19.38         $   19.38
Options exercised       (360,385)     $    8.82
Options forfeited        (38,332)     $   16.30
                       ---------
Ending balance         1,276,364      $   15.18
                       =========  
Options exercisable      467,536      $    7.93
                       =========
</TABLE>

<TABLE>
<CAPTION>
                               For the Year Ended July 31, 1996
                        -------------------------------------------
                                                        Weighted 
                                       Weighted       Average Grant
                        Number of      Average          Date Fair
                         Shares     Exercise Price        Value
                        ---------   --------------    -------------
<S>                      <C>          <C>             <C>
Beginning balance        877,263      $   10.98
Options granted          400,160      $    6.25         $   6.25
Options exercised       (388,171)     $   12.35
Options forfeited        (51,412)     $    7.49
                        --------
Ending balance           837,840      $    8.30
                        ======== 
Options exercisable      667,340      $    9.08
                        ======== 
</TABLE>

The weighted average fair values of options granted are determined using the
Black-Scholes option valuation method assuming no expected dividends. Other
assumptions used are as follows:

<TABLE>
<CAPTION>
                                       For the Years Ended July 31,
                             ---------------------------------------------------
                                 1998               1997               1996
                             -------------      -------------      -------------
<S>                              <C>                <C>                <C> 
Risk-free interest rate          6.1%               6.6%               5.9%
Expected volatility             49.6%              50.2%              48.8%
Expected life                   10.0 years         10.0 years          8.7 years
</TABLE>

In conjunction with certain employment agreements, the Company issued 13,025 and
10,000 shares of restricted stock with weighted average grant date fair values
of $33.66 and $20.25 per share, respectively, during the years ended July 31,
1998 and 1997, respectively, to certain individuals in exchange for services
rendered over a three-year period.

On November 1, 1997, the Company initiated a compensatory employee stock
purchase plan for up to 500,000 shares of common stock. Participation is
voluntary and substantially all full-time employees meeting limited eligibility
requirements may participate. Contributions are made through payroll deductions
and may not be less than 1% or more than 15% of the participant's base pay as
defined. The participant's option to purchase common stock is deemed to be
granted on the first day and exercised on the last day of the fiscal quarter at
a price which is the lower of 85% of the market price on the first or last day
of the fiscal quarter. During the year ended July 31, 1998, 52,731 shares of
common stock were issued with a weighted average grant date fair value of $35.37
per share.

                                       36
<PAGE>   39
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

On June 9, 1998, the Company initiated a restricted stock plan for up to 50,000
shares. The eligibility of an employee and the terms and amount of the grant are
determined by the Board of Directors' Compensation Committee. During the year
ended July 31, 1998, 4,400 shares of restricted stock were issued at a weighted
average grant date fair value of $43.09 per share which will vest over a
three-year period.

Compensation expense relating to the stock-based compensation plans described
above was $506,000 and $23,000 for the years ended July 31, 1998 and 1997,
respectively. No compensation expense was recognized for the year ended July 31,
1996. The effect on net income and earnings per share that would have been
recorded using the fair value based method is as follows:

<TABLE>
<CAPTION>
                                                                    For the Years Ended July 31,
                                                                -----------------------------------
                                                                  1998          1997        1996
                                                                ---------     -------     ---------
                                                              (In thousands, except per share amounts)
<S>                                                             <C>           <C>         <C>      
     Net income reported                                        $  66,958     $25,125     $   1,281
                                                                =========     =======     =========
     Pro forma net income                                          64,498     $24,138     $     692
                                                                =========     =======     =========

     Earnings per common share reported                         $    2.96     $  1.33     $    0.07
                                                                =========     =======     =========
     Pro forma earnings per common share                        $    2.85     $  1.28     $    0.04
                                                                =========     =======     =========

     Earnings per common share - assuming dilution reported     $    2.87     $  1.30     $    0.07
                                                                =========     =======     =========
     Proforma earnings per common share - assuming dilution     $    2.77     $  1.25     $    0.04
                                                                =========     =======     =========
</TABLE>

The effect on net income and earnings per share may not be representative of the
effects on future net income and earnings per share because some options vest
over several years and additional awards may be granted.

The Company maintains a contributory defined benefit pension plan (the "Pension
Plan") for eligible participating employees in the United Kingdom offices.
Monthly contributions by employees are equal to 4% of their salaries with the
Company providing an additional contribution in an actuarially determined amount
necessary to fund future benefits to be provided under the Pension Plan.
Benefits provided are based upon 1/60 of the employee's final pensionable salary
(as defined) for each complete year of service up to 2/3 of the employee's final
pensionable salary and increase annually at 5%. The Pension Plan also provides
for 50% of such actual or expected benefits to be paid to a surviving spouse
upon the death of a participant. Pension Plan assets consist mainly of
investments in marketable securities which are held and managed by an
independent trustee. The net periodic pension costs are as follows:

<TABLE>
<CAPTION>
                                                    For the Years Ended July 31,
                                                    ----------------------------
                                                    1998       1997       1996
                                                    -----      -----      -----
                                                     (In thousands of dollars)
<S>                                                 <C>        <C>        <C>  
Service costs (benefits earned during the period)   $ 457      $ 238      $ 224
Interest costs on projected benefit obligation        441        384        292
Return on assets                                     (695)      (392)      (312)
Net amortization and deferral                         224          5          5
                                                    -----      -----      -----
Net periodic pension costs                          $ 427      $ 235      $ 209
                                                    =====      =====      =====
</TABLE>

                                       37
<PAGE>   40
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

The funded status of the Pension Plan is as follows:

<TABLE>
<CAPTION>
                                                                       July 31,
                                                                 --------------------
                                                                  1998         1997
                                                                 -------      -------
                                                               (In thousands of dollars)
<S>                                                              <C>          <C>    
Plan assets at fair value                                        $ 6,443      $ 5,277

Projected benefit obligation:
  Actuarial present value of accumulated vested benefit       
    obligations                                                    7,400        4,726
  Effect of future salary increases                                1,492          753
                                                                 -------      -------
      Total projected benefit obligation                           8,892        5,479
                                                                 -------      -------
Projected benefit obligation in excess of plan assets             (2,449)        (202)
Unrecognized prior service cost                                                    49
Unrecognized net loss                                              2,243
                                                                 -------      -------
Pension liability                                                $  (206)     $  (153)
                                                                 =======      =======
</TABLE>

The weighted average assumptions used to determine the projected benefit
obligation and the expected long-term rate of return on assets are as follows:

<TABLE>
<CAPTION>
                                                             For the Years Ended July 31,
                                                             ----------------------------
                                                                1998     1997     1996
                                                                ----     ----     ----
<S>                                                             <C>      <C>      <C> 
Discount rate                                                   6.5%     8.0%     8.5%
Rates of increase in compensation levels                        4.5%     6.0%     6.5%
Expected long-term rate of return on assets                     7.0%     8.5%     9.0%
</TABLE>

10.  COMMON AND PREFERRED STOCK

The board of directors, without any action by the stockholders, may issue up to
one million shares of authorized preferred stock, par value, $.01, in one or
more series and determine the voting rights, preferences as to dividends and in
liquidation and the conversion and other rights of such stock. There are no
shares of preferred stock outstanding as of July 31, 1998.

On May 27, 1997, the board of directors of the Company declared a distribution
of one right for each outstanding share of common stock or Exchangeable Stock
(see Note 2) to shareholders of record at the close of business on June 12, 1997
and designated 400,000 shares of the authorized preferred stock as a class to be
distributed under a shareholder rights agreement. Upon the occurrence of certain
events enumerated by the shareholder rights agreement, each right entitles the
registered holder to purchase a fraction of a share of the Company's authorized
preferred stock or the common stock of an acquiring company. The rights, among
other things, will cause substantial dilution to a person or group that attempts
to acquire the Company. The rights expire on May 15, 2007 but may be redeemed
earlier.

In July 1998, the Board of Directors approved a stock repurchase program under
which the Company is authorized to buy up to 1,000,000 shares of its outstanding
common stock in open market transactions. At July 31, 1998, the Company had
repurchased 50,000 shares at $34.50 per share.


11.    WARRANTS

In conjunction with the cancellation of a previous issue of common and preferred
stock and certain other liabilities, the Company authorized 454,545 warrants
which may be exercised for 454,545 shares of common stock. The warrants were
issued for a term of five years beginning July 5, 1991 at an exercise price of
$18.00 per share. The warrants could only be exercised for cash. Warrants for
29,433 shares were exercised on July 5, 1996 and the remaining warrants expired.

                                       38
<PAGE>   41
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

In conjunction with a previously outstanding secured term loan, the Company
issued 113,333 warrants exercisable at a price of $6.00 per share. The warrants
were exercised in December 1996.

In conjunction with previously outstanding short-term related party loans, the
Company issued warrants to purchase 120,000 common shares for cash at a price of
$4.50 per share to the lenders. As of July 31, 1998, all warrants have been
exercised.


12.    WRITE-OFF/WRITE-DOWN OF ASSETS

In connection with the Combination, management committed the Company to a plan
to upgrade its seismic data processing hardware. Certain equipment was scheduled
to be replaced by October 1996. During July 1996, the Company recognized
impairment of $3,628,000 relating to the abandonment of the equipment to be
replaced.


13.    OTHER COSTS AND EXPENSES

Other costs and expenses consist of the following:

<TABLE>
<CAPTION>
                                                                        For the Years Ended July 31,
                                                                  ---------------------------------------
                                                                    1998           1997             1996
                                                                  -------         -------         -------
                                                                         (In thousands of dollars)
         <S>                                                      <C>             <C>             <C>
         Net foreign currency exchange (gains) losses             $ 2,333         $    46         $  (156)
         Net loss on disposition of property and equipment          1,549           1,151             875
         Interest income                                           (4,220)           (552)           (547)
         Other                                                                        (15)            374
                                                                  -------         -------         -------
                  Total                                           $  (338)        $   630         $   546
                                                                  =======         =======         =======
</TABLE>


14.     EARNINGS PER COMMON SHARE

Earnings per common share and earnings per common share - assuming dilution are
computed as follows:

<TABLE>
<CAPTION>
                                                                          For the Years Ended July 31,
                                                                     -------------------------------------
                                                                       1998            1997           1996
                                                                     -------        -------        -------
                                                                    (In thousands, except per share amounts)
<S>                                                                  <C>            <C>            <C>    
         Net income                                                  $66,958        $25,125        $ 1,281
                                                                     =======        =======        =======
         Weighted average common shares                               22,594         18,898         17,882
                                                                     =======        =======        =======
         Earnings per common share                                   $  2.96        $  1.33        $  0.07
                                                                     =======        =======        =======

          Weighted average common shares - assuming dilution:
                  Weighted average common shares                      22,594         18,898         17,882
                  Shares issuable from assumed conversion of:
                      Options                                            721            432             86
                      Warrants                                                           34            127
                                                                     -------        -------        -------
                              Total                                   23,315         19,364         18,095
                                                                     =======        =======        =======
         Earnings per common share - assuming dilution               $  2.87        $  1.30        $  0.07
                                                                     =======        =======        =======
</TABLE>

Exchangeable Stock issued in the business combination between Digicon, and VES
is included in both computations. (See Note 2.) Options to purchase 22,810
common shares at exercise prices ranging from $42 to $56 1/2 expiring through
July 2008 and 241,489 common shares at exercise prices ranging from 127/8 to 13
1/2 expiring through November 2002 have been excluded from the computation
assuming 


                                       39
<PAGE>   42
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

dilution for the years ended July 31, 1998, and 1996, respectively,
because the options' exercise prices exceeded the average market price of the
underlying common shares. There were no anti-dilutive options for the year ended
July 31, 1997.

15.     RELATED PARTY TRANSACTIONS

The Company is party to transactions with P.T. Digicon Mega Pratama ("P.T.
Digicon"), an 80% owned joint venture (see Note 3), in the normal course of
business. During the years ended July 31, 1998, 1997 and 1996, the Company
charged P.T. Digicon $368,000, $1,429,000 and $1,207,000, respectively, relating
to allocations of corporate administrative expenses and actual expenses incurred
by P.T. Digicon for salary cost, insurance and equipment charges. Advances from
the Company to P.T. Digicon of $13,847,000 and $14,784,000 at July 31, 1998 and
1997, respectively, have no formal repayment terms and do not bear interest.

16.     GEOGRAPHICAL INFORMATION

Substantially all of the Company's operations consist of geophysical services.
The following tables provide relevant information for the years ended July 31,
1998, 1997 and 1996, grouped by major geographic areas.
Intersegment sales between geographic areas are valued at current market prices.

<TABLE>
<CAPTION>
                                                                    For the Year Ended July 31, 1998
                                        ------------------------------------------------------------------------------------
                                                           Revenues                       
                                        ----------------------------------------------          Operating
                                        Unaffiliated     Intersegment                            Profit         Identifiable
                                         Customers           Sales             Total             (Loss)            Assets
                                        ------------     ------------        ---------         ----------       ------------
                                                                    (In thousands of dollars)
<S>                                     <C>                <C>               <C>                <C>              <C>      
Geographic areas:
     Europe                             $  51,089          $   6,819         $  57,908          $  18,945        $  56,699
     Middle East                           13,632                               13,632             (3,762)          12,243
     Asia Pacific                          42,462                               42,462              7,746           39,328
     Latin America                         93,494                               93,494              6,302           45,068
     Canada                                47,059                112            47,171              1,616           23,581
     Eliminations                                                (70)              (70)
                                        ---------          ---------         ---------          ---------        ---------
             Totals                       247,736              6,861           254,597             30,847          176,919
     United States                        281,223*                 4           281,227*            95,095          239,317
     Eliminations                                             (6,865)           (6,865)
                                        ---------          ---------         ---------          ---------        ---------
             Totals                       528,959                              528,959            125,942          416,236
Corporate expenses                                                                                (18,758)
Interest                                                                                           (7,318)
Other                                                                                                 338
Income taxes                                                                                      (34,218)
Investments in 50% or less-owned                                                                      
   companies and joint ventures                                                                       972            2,943
Corporate assets                                                                                                    59,311
                                        ---------          ---------         ---------          ---------        ---------
       Totals                           $ 528,959          $                 $ 528,959          $  66,958        $ 478,490
                                        =========          =========         =========          =========        =========
</TABLE>

- ----------------------
* Includes export sales of $458.

There was no single client that accounted for 10% or more of total revenues
during the year ended July 31, 1998. During 1998, depreciation and amortization
expense was $4,062,000 for Europe; $4,415,000 for Middle East; $5,064,000 for
Asia Pacific; $5,478,000 for Latin America; $8,541,000 for Canada and
$28,561,000 for the United States. Capital expenditures were $34,942,000 for
Europe; $3,122,000 for Middle East; $15,071,000 for Asia Pacific; $7,057,000 for
Latin America; $5,494,000 for Canada and $33,863,000 for the United States.


                                       40
<PAGE>   43
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

<TABLE>
<CAPTION>
                                                              For the Year Ended July 31, 1997
                                      ----------------------------------------------------------------------------------
                                                          Revenues                            
                                      ------------------------------------------------         Operating
                                       Unaffiliated       Intersegment                           Profit         Identifiable
                                        Customers            Sales             Total             (Loss)            Assets
                                       ------------       ------------       ---------        -----------       ------------
                                                                      (In thousands of dollars)
<S>                                     <C>                <C>               <C>                <C>              <C>      
Geographic areas:
     Europe                             $  42,798          $   9,982         $  52,780          $  14,756        $  31,880
     Middle East                            2,403                                2,403               (603)          12,607
     Asia Pacific                          30,203                               30,203              2,661           30,538
     Latin America                         51,157                               51,157              1,884           29,052
     Canada                                52,141              2,698            54,839              2,763           31,924
     Eliminations                                             (2,705)           (2,705)
                                        ---------          ---------         ---------          ---------        ---------
             Totals                       178,702              9,975           188,677             21,461          136,001
     United States                        184,013*               169           184,182*            28,967          166,696
     Eliminations                                            (10,144)          (10,144)
                                        ---------          ---------         ---------          ---------        ---------
             Totals                       362,715                              362,715             50,428          302,697
Corporate expenses                                                                                (11,408)
Interest                                                                                           (7,484)
Merger related costs                                                                                 (597)
Other                                                                                                (630)
Income taxes                                                                                       (6,062)
Investments in 50% or less-owned
   companies and joint ventures                                                                       878            2,908
Corporate assets                                                                                                    79,484
                                        ---------          ---------         ---------          ---------        ---------
       Totals                           $ 362,715          $                 $ 362,715          $  25,125        $ 385,089
                                        =========          =========         =========          =========        =========
</TABLE>

- -------------------
* Includes export sales of $4,115.

There was no single client that accounted for 10% or more of total revenues
during the year ended July 31, 1997. During 1997, depreciation and amortization
expense was $2,818,000 for Europe; $939,000 for Middle East; $2,996,000 for Asia
Pacific; $4,550,000 for Latin America; $8,961,000 for Canada and $20,367,000 for
the United States. Capital expenditures were $4,783,000 for Europe; $11,136,000
for Middle East; $6,845,000 for Asia Pacific; $4,883,000 for Latin America;
$6,560,000 for Canada and $61,843,000 for the United States.


                                       41
<PAGE>   44
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

<TABLE>
<CAPTION>
                                                                For the Year Ended July 31, 1996
                                      -------------------------------------------------------------------------------------
                                                         Revenues                            
                                      -----------------------------------------------         Operating
                                       Unaffiliated       Intersegment                          Profit         Identifiable
                                        Customers            Sales             Total            (Loss)            Assets
                                      -------------       ------------       ---------         ---------       ------------
                                                                   (In thousands of dollars)
<S>                                   <C>                  <C>               <C>               <C>               <C>
Geographic areas:
     Europe                             $  37,394          $   1,532         $  38,926         $   8,065         $  35,463
     Asia Pacific                          30,558                               30,558             1,745            23,590
     Latin America                         36,346                 92            36,438            (1,289)           29,758
     Canada                                47,423                 87            47,510             4,079            30,666
                                        ---------          ---------         ---------         ---------         ---------
             Totals                       151,721              1,711           153,432            12,600           119,477
     United States                         98,875*                61            98,936*            8,736            77,561
     Eliminations                                             (1,772)           (1,772)
                                        ---------          ---------         ---------         ---------         ---------
             Totals                       250,596                              250,596            21,336           197,038
Corporate expenses                                                                                (7,255)
Interest                                                                                          (5,466)
Merger related costs                                                                              (3,666)
Other                                                                                               (546)
Income taxes                                                                                      (2,009)
Investments in 50% or less-owned
   companies and joint ventures                                                                   (1,113)            1,463
Corporate assets                                                                                                        91
                                        ---------          ---------         ---------         ---------         ---------
       Totals                           $ 250,596          $                 $ 250,596         $   1,281         $ 198,592
                                        =========          =========         =========         =========         =========
</TABLE>

- --------------------------
* Includes export sales of $4,774.

There was no single client that accounted for 10% or more of total revenues
during the year ended July 31, 1996. During 1996, operating profit (loss)
included write-off/write-down for impairment of assets of $2,091,000 for Europe;
$1,127,000 for Asia Pacific and $410,000 for the United States. Depreciation and
amortization expense was $5,182,000 for Europe; $1,707,000 for Asia Pacific;
$4,655,000 for Latin America; $7,689,000 for Canada and $7,688,000 for the
United States. Capital expenditures were $4,088,000 for Europe; $6,795,000 for
Asia Pacific; $4,734,000 for Latin America; $3,657,000 for Canada and
$13,586,000 for the United States.


                                       42
<PAGE>   45
                        VERITAS DGC INC. AND SUBSIDIARIES

             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
                FOR THE YEARS ENDED JULY 31, 1998, 1997 AND 1996

17.    SELECTED UNAUDITED QUARTERLY FINANCIAL DATA

<TABLE>
<CAPTION>
                                                                             For the Year Ended July 31, 1998
                                                                 --------------------------------------------------------------
                                                                 1st Quarter      2nd Quarter      3rd Quarter      4th Quarter
                                                                 -----------      -----------      -----------      -----------
                                                                      (In thousands of dollars, except per share amounts)
<S>                                                                 <C>             <C>             <C>             <C>     
         Revenues                                                   $142,186        $123,569        $122,810        $140,394
         Gross profit                                                 48,933          42,765          47,429          42,936
         Net income                                                   21,319          17,677          16,062          11,900
         Earnings per common share*                                      .95             .79             .71             .52
         Earnings per common share - assuming dilution*                  .94             .76             .69             .51
</TABLE>

<TABLE>
<CAPTION>
                                                                             For the Year Ended July 31, 1997
                                                                 --------------------------------------------------------------
                                                                 1st Quarter      2nd Quarter      3rd Quarter      4th Quarter
                                                                 -----------      -----------      -----------      -----------
                                                                        (In thousands of dollars, except per share amounts)
<S>                                                                 <C>             <C>             <C>             <C>     
         Revenues                                                   $ 76,405        $ 90,691        $ 86,843        $108,776
         Gross profit                                                 18,085          22,709          23,499          26,766
         Merger related costs                                            597
         Net income                                                    5,168           6,507           6,086           7,364
         Earnings per common share*                                      .28             .35             .32             .37
         Earnings per common share - assuming dilution*                  .27             .34             .32             .37
</TABLE>

*  Quarterly per share amounts may not total to annual per share amounts because
   weighted average common shares for the quarter may vary from weighted average
   common shares for the year.



                                       43
<PAGE>   46

ITEM 9.      CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND 
FINANCIAL DISCLOSURE

Previously reported in Form 10-K for the fiscal year ended July 31, 1997.

                                    PART III

ITEM 10.     DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

Information required by this item is incorporated by reference to the material
appearing under the headings "Election of Directors - Nominees" and "Other
Information - Executive Officer Tenure and Identification" in the Proxy
Statement for the 1998 Annual Meeting of Stockholders.

ITEM 11.     EXECUTIVE COMPENSATION

Information required by this item is incorporated by reference to the material
appearing under the heading "Other Information - Executive Compensation" in the
Proxy Statement for the 1998 Annual Meeting of Stockholders.

ITEM 12.     SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

Information required by this item is incorporated by reference to the material
appearing under the headings "Election of Directors" and "Other Information -
Certain Stockholders" in the Proxy Statement for the 1998 Annual Meeting of
Stockholders.

ITEM 13.     CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Information required by this item is incorporated by reference to the material
appearing under the heading "Other Information - Certain Transactions" in the
Proxy Statement for the 1998 Annual Meeting of Stockholders.

                                     PART IV

ITEM 14.     EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

                        CONSOLIDATED FINANCIAL STATEMENTS

<TABLE>
<CAPTION>
                                                                                        Page Number
                                                                                        -----------
<S>                                                                                          <C>
Reports of Independent Accountants                                                           15
Consolidated Statements of Income for the Three Years Ended July 31, 1998                    18
Consolidated Balance Sheets as of  July 31, 1998 and 1997                                    19
Consolidated Statements of Cash Flows for the Three Years Ended July 31, 1998                20
Consolidated Statements of Changes in Stockholders' Equity for the Three Years               
     Ended  July 31, 1998                                                                    22
Notes to Consolidated Financial Statements                                                   23
</TABLE>

                   CONSOLIDATED FINANCIAL STATEMENT SCHEDULES

All other financial statement schedules are omitted for the reason that they are
not required or are not applicable, or the required information is shown in the
consolidated financial statements or the notes thereto.

Individual financial statements of 50% or less-owned companies and joint
ventures accounted for by the equity method have been omitted because such 50%
or less-owned companies and joint ventures, considered in the aggregate as a
single subsidiary, would not constitute a significant subsidiary.


                                       44
<PAGE>   47

             FORM 8-K REPORTS DURING THE QUARTER ENDED JULY 31, 1998

No Form 8-K reports were filed during the quarter ended July 31, 1998.

                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
      Exhibit
      -------
      <S>         <C>
           2)     Combination Agreement dated as of May 10, 1996, between
                  Digicon Inc. and Veritas Energy Services Inc. (Exhibit 2.1 of
                  Digicon Inc.'s Current Report on Form 8-K dated May 10, 1996
                  is incorporated herein by reference.)

         3-A)     Restated Certificate of Incorporation with amendments of
                  Digicon Inc. dated August 30, 1996. (Exhibit 3.1 to Veritas
                  DGC Inc.'s Current Report on Form 8-K dated September 16, 1996
                  is incorporated herein by reference.)

         3-B)     Certificate  of  Ownership  and Merger of New Digicon  Inc.  
                  and Digicon Inc. (Exhibit 3-B to Digicon Inc.'s Registration
                  Statement No. 33-43873 dated November 12, 1991 is incorporated
                  herein by reference.)

         3-C)     By-laws of New Digicon Inc.  dated June 24, 1991.  (Exhibit  
                  3-C to Digicon Inc.'s Registration Statement No. 33-43873
                  dated November 12, 1991 is incorporated herein by reference).

         4-A)     Specimen certificate for Senior Notes. (Included as part of
                  Section 2.2 of Exhibit 4-B to Veritas DGC Inc.'s Registration
                  Statement No. 333-12481 dated September 20, 1996 is
                  incorporated herein by reference.)

         4-B)     Form of Trust Indenture relating to the 9 3/4% Senior Notes
                  due 2003 of Veritas DGC Inc. between Veritas DGC Inc. and
                  Fleet National Bank, as trustee. (Exhibit 4-B to Veritas DGC
                  Inc.'s Registration Statement No. 333-12481 dated September
                  20, 1996 is incorporated herein by reference.)

         4-C)     Specimen Veritas DGC Inc. Common Stock certificate. (Exhibit
                  4-C to Veritas DGC Inc.'s Form 10-K for the year ended July
                  31, 1996 is incorporated herein by reference.)

         4-D)     Rights Agreement between Veritas DGC Inc. and ChaseMellon
                  Shareholder Services, L.L.C. dated as of May 15, 1997.
                  (Exhibit 4.1 of Veritas DGC Inc.'s Current Report on Form 8-K
                  filed May 27, 1997 is incorporated herein by reference.)

         4-E)     Form S-8  Restricted  Stock Grant  Agreement.  (Exhibit  4.8 
                  to Veritas DGC Inc.'s Registration Statement No. 333-48953
                  dated March 31, 1998 is incorporated herein by reference.)

         4-F)     Restricted Stock Plan.  (Exhibit 4.1 of Veritas DGC Inc.'s  
                  Registration Statement No. 333-57603 dated June 24, 1998 is
                  incorporated herein by reference.)

         4-G)     Key Contributor Incentive Plan for Fiscal Year 1998 as Amended
                  and Restated September 29, 1998. (Exhibit 4.7 to Veritas DGC
                  Inc.'s Registration Statement No. 333-65081 dated September
                  30, 1998 is incorporated herein by reference.)

           9)     Voting and Exchange Trust Agreement dated August 30, 1996
                  among Digicon Inc., Veritas Energy Services Inc. and the R-M
                  Trust Company. (Exhibit 9.1 of Veritas DGC Inc.'s Current
                  Report on Form 8-K dated September 16, 1996 is incorporated
                  herein by reference.)

        10-A)     Support Agreement dated August 30, 1996 between Digicon Inc.
                  and Veritas Energy Services Inc. (Exhibit 10.1 of Veritas DGC
                  Inc.'s Current Report on Form 8-K dated August 30, 1996 is
                  incorporated herein by reference.)
</TABLE>

                                       45
<PAGE>   48
<TABLE>
      <S>         <C>
        10-B)     Amended and Restated 1992  Non-Employee  Director Stock Option
                  Plan. (Exhibit 4.2 to Veritas DGC Inc.'s Registration
                  Statement No. 333-41829 dated December 10, 1997 is
                  incorporated herein by reference.)

        10-C)     Second  Amended and Restated  1992  Employee  Nonqualified
                  Stock Option Plan. (Exhibit 4.1 to Veritas DGC Inc.'s
                  Registration Statement No. 333-41829 dated December 10, 1997
                  is incorporated herein by reference.)

        10-D)     1997 Employee  Stock  Purchase Plan.  (Exhibit 4.1 to Veritas 
                  DGC Inc.'s Registration Statement No. 333-38377 dated October
                  21, 1997 is incorporated herein by reference.)

        10-E)     Restricted Stock Agreement dated April 1, 1997 between Veritas
                  DGC Inc. and Anthony Tripodo. (Exhibit 10-O to Veritas DGC
                  Inc.'s Form 10-K for the year ended July 31, 1997 is
                  incorporated herein by reference.)

        10-F)     Employment Agreement executed by David B. Robson. (Exhibit
                  10-L to Veritas Inc.'s Form 10-K for the year ended July 31,
                  1997 is incorporated herein by reference.)

        10-G)     Employment Agreement executed by Stephen J. Ludlow. (Exhibit
                  10-B to Veritas DGC Inc.'s Form 10-Q for the quarter ended
                  April 30, 1997 is incorporated herein by reference.)

        10-H)     Employment Agreement executed by Lawrence C. Fichtner.
                  (Exhibit 10-M to Veritas DGC Inc.'s Form 10-K for the year
                  ended July 31, 1997 is incorporated herein by reference.)

        10-I)     Employment Agreement executed by Anthony Tripodo. (Exhibit
                  10-I to Veritas DGC Inc.'s Form 10-Q for the quarter ended
                  April 30, 1997 is incorporated herein by reference.)

        10-J)     Employment Agreement executed by Rene M.J. VandenBrand.
                  (Exhibit 10-N to Veritas DGC Inc.'s Form 10-K for the year
                  ended July 31, 1997 is incorporated herein by reference.)

       *10-K)     Credit Agreement dated July 27, 1998 among Veritas DGC Inc.,
                  as borrower, and Bank One, Texas, N.A., as issuing bank, as a
                  bank and as agent for the banks, and the banks named therein.

        10-L)     Credit Agreement dated July 18, 1996 among Digicon Inc. and
                  Digicon Geophysical Corp., Digicon/GFS Inc., Digicon
                  Geophysical Limited and Digicon Exploration, Ltd., as
                  Borrowers, each of the banks named therein, and Wells Fargo
                  Bank (Texas), National Association, as issuing bank, as a bank
                  and as agent for the banks. (Exhibit 10-G of Veritas DGC
                  Inc.'s Amendment No. 1 to Registration Statement No.
                  333-12481, dated October 2, 1996 is incorporated herein by
                  reference.)

        10-M)     Letter dated September 27, 1996 from Wells Fargo Bank (Texas),
                  National Association, agreeing to amend the Credit Agreement
                  dated July 18, 1996. (Exhibit 10-H of Veritas DGC Inc.'s
                  Amendment No. 1 to Registration Statement No. 333-12481, dated
                  October 2, 1996 is incorporated herein by reference.)

        10-N)     Letter dated May 28, 1997 from Wells Fargo Bank (Texas),
                  National Association, agreeing to amend the Credit Agreement
                  dated July 18, 1996. (Exhibit 10-J to Veritas DGC Inc.'s Form
                  10-Q for the quarter ended April 30, 1997 is incorporated
                  herein by reference.)

          16)     Letter regarding change in certifying accountants. (Exhibit
                  16.1 of Veritas DGC Inc.'s Current Report on Form 8-K as
                  amended by Form 8-K/A dated November 27, 1996 and December 4,
                  1996, respectively, is incorporated herein by reference.)
</TABLE>

                                       46
<PAGE>   49
<TABLE>
      <S>         <C>
         *21)     Subsidiaries of the Registrant.

       *23-A)     Consent of  PricewaterhouseCoopers LLP.

       *23-B)     Consent of PricewaterhouseCoopers, Chartered Accountants.

       *23-C)     Consent of Deloitte & Touche LLP.

       *27-A)     Financial Data Schedule for the year ended July 31, 1998 filed electronically herewith.
       
       *27-B)     Financial Data Schedule for the year ended July 31, 1997 filed electronically herewith.

       *27-C)     Financial Data Schedule for the year ended July 31, 1996 filed electronically herewith.
</TABLE>







   * Filed herewith

                                       47
<PAGE>   50

                                   SIGNATURES

Pursuant to the requirements of Sections 13 or 15(d) of the Securities Exchange
Act of 1934, the Registrant has duly caused this report to be signed on its
behalf by the undersigned; thereunto duly authorized, on the 2nd day of October,
1998.

                             VERITAS DGC INC.

                             By:     /s/  DAVID B. ROBSON
                                ------------------------------------------------
                                     David B. Robson
                                     (Chairman of the Board and Chief Executive 
                                      Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, the
following persons on behalf of the Registrant in the indicated capacities have
signed this report below on the 2nd day of October, 1998.

<TABLE>
<CAPTION>
                        Signature                                                     Title
                        ---------                                                     -----
       <S>                                                          <C>
                 /s/ DAVID B. ROBSON                                 Chairman of the Board and Chief Executive
       ---------------------------------------------                            Officer, Director
                     David B. Robson

                /s/ STEPHEN J. LUDLOW                                 President and Chief Operating Officer,
       ---------------------------------------------                               Director
                    Stephen J. Ludlow

               /s/ LAWRENCE C. FICHTNER                                Executive Vice President - Corporate
       ---------------------------------------------                        Communications, Director
                   Lawrence C. Fichtner

                 /s/ ANTHONY TRIPODO                               Executive Vice President, Chief Financial and
       ---------------------------------------------                     Accounting Officer and Treasurer
                     Anthony Tripodo

                /s/ CLAYTON P. CORMIER                                              Director
       ---------------------------------------------
                    Clayton P. Cormier

                  /s/ RALPH M. EESON                                                Director
       ---------------------------------------------
                      Ralph M. Eeson

                  /s/ JAMES R. GIBBS                                                Director
       ---------------------------------------------
                      James R. Gibbs

                                                                                    Director
       ---------------------------------------------
                    Steven J. Gilbert

                                                                                    Director
       ---------------------------------------------
                    Brian F. MacNeill

                                                                                    Director
       ---------------------------------------------
                   Douglas B. Thompson

                                                                                    Director
       ---------------------------------------------
                      Jack C. Threet
</TABLE>


                                       48

<PAGE>   1
                                                                   EXHIBIT _____




- --------------------------------------------------------------------------------
                                CREDIT AGREEMENT
                           dated as of July 27, 1998


                                     among


                                VERITAS DGC INC.
                                  as Borrower


                                      and


                             BANK ONE, TEXAS, N.A.
                           as Issuing Bank, as a Bank
                           and as Agent for the Banks


                                      and


                                   the Banks
- --------------------------------------------------------------------------------
<PAGE>   2
                                CREDIT AGREEMENT


         THIS CREDIT AGREEMENT, dated as of July 27, 1998 (this "Agreement"),
is among VERITAS DGC INC., a Delaware corporation ("Borrower"), each of the
banks or other lending institutions which is or which may from time to time
become a signatory hereto or any successor or assignee thereof (individually, a
"Bank" and, collectively, the "Banks") and BANK ONE, TEXAS, N.A., a national
banking association as issuing bank (in such capacity, together with its
successors in such capacity, the "Issuing Bank") and as agent for itself, the
Issuing Bank and the other Banks (in such capacity, together with its
successors in such capacity,  the "Agent").

                               R E C I T A L S :

         The Borrower has requested the Banks to extend credit in the form of a
revolving credit facility not to exceed $50,000,000.00 outstanding at any time
under which the Borrower may request (i) Advances and (ii) Letters of Credit
(subject to a $15,000,000.00 sublimit).  The Banks are willing to make such
credit facility available to the Borrower upon the terms and conditions
hereinafter set forth.

         NOW THEREFORE, in consideration of the premises and the mutual
covenants herein contained, the parties hereto agree as follows:

                                   ARTICLE I.

         Section 1.1.     Definitions.  As used in this Agreement, the
following terms have the following meanings:

                 "AAA" has the meaning given to such term in Section 14.20 of
         this Agreement.

                 "Additional Costs" has the meaning given to such term in
         Section 5.2.

                 "Adjusted LIBOR Rate" means, for any LIBOR Advance for any
         Interest Period therefor, the rate per annum determined by the Agent
         to be equal to the LIBOR Rate for such LIBOR Advance for such Interest
         Period divided by 1 minus the Reserve Requirement for such LIBOR
         Advance for such Interest Period.

                 "Advance" means an advance of funds by the Agent on behalf of
         the Banks to the Borrower pursuant to Article II and includes, as
         applicable, a Prime Rate Advance or a LIBOR Advance.

                 "Advance Request Form" means a certificate, in substantially
         the form attached hereto as Exhibit "E",
<PAGE>   3
         properly completed and signed by an Authorized Representative
         requesting an Advance.

                 "Affiliate" means, as to any Person, any other Person (a) that
         directly or indirectly, through one or more intermediaries, controls
         or is controlled by, or is under common control with, such Person; (b)
         that directly or indirectly beneficially owns or holds twenty five
         percent (25%) or more of any class of voting stock of such Person; or
         (c) twenty five percent (25%) or more of the voting stock of which is
         directly or indirectly beneficially owned or held by the Person in
         question.  The term "control" means the possession, directly or
         indirectly, of the power to direct or cause direction of the
         management and policies of a Person, whether through the ownership of
         voting securities, by contract, or otherwise; provided, however, in no
         event shall any of the Agent, the Issuing Bank and the Banks be deemed
         an Affiliate of Borrower or any of its Subsidiaries.

                 "Agent" has the meaning given to such term in the first
         paragraph of this Agreement.

                 "Applicable Lending Office" means for each Bank and each Type
         of Advance, the Lending Office of such Bank (or of an Affiliate of
         such Bank) designated for such Type of Advance below its name on the
         signature pages hereof or such other office of the Bank (or of an
         Affiliate of such Bank) as such Bank may from time to time specify to
         Borrower as the office by which its Advances of such Type are to be
         made and maintained.

                 "Applicable Rate" means (a) during the period that an Advance
         is a Prime Rate Advance, the sum of the Prime Rate plus the Prime Rate
         Margin from time to time in effect; and (b) during the period that an
         Advance is a LIBOR Advance, the sum of the Adjusted LIBOR Rate plus
         the LIBOR Margin from time to time in effect.

                 "Asia Pacific" means Veritas DGC Asia Pacific, Ltd., a
         Delaware corporation, and its successors and assigns.

                 "Assignee" has the meaning given to such term in Section
         14.8(b).

                 "Authorized Representative" means any officer or employee of
         the Borrower who has been designated in writing by the Borrower to the
         Agent to be an Authorized Representative.

                 "Bank" has the meaning given to such term in the first
         paragraph of this Agreement.





                                      -2-
<PAGE>   4
                 "Basle Accord" means the proposals for risk-based capital
         framework described by the Basle Committee on Banking Regulations and
         Supervisory Practices in its paper entitled "International Convergence
         of Capital Measurement and Capital Standards" dated July 1988, as
         amended, supplemented and otherwise modified and in effect from time
         to time, or any replacement thereof.

                 "Borrower" has the meaning given to such term in the first
         paragraph of this Agreement.

                 "Borrowing Base" means, at any particular time, an amount
         equal to the sum of (a) eighty percent (80%) of Eligible
         Domestic/Domestic Accounts, plus (b) seventy percent (70%) of Eligible
         Domestic/Foreign Accounts, plus (c) fifty percent (50%) of Eligible
         Foreign/Foreign Accounts; provided that all accounts not payable in
         Dollars shall be calculated at the applicable Exchange-Rate.

                 "Borrowing Base Report" means a report regarding the Borrowing
         Base in form and substance satisfactory to the Agent, properly
         completed and delivered or to be delivered to the Agent pursuant to
         this Agreement.

                 "Business Day" means (a) any day on which commercial banks are
         not authorized or required to close in Houston, Texas, and (b) with
         respect to all borrowings, payments, Conversions, Continuations,
         Interest Periods, and notices in connection with LIBOR Advances, any
         day which is a Business Day described in clause (a) above and which is
         also a day on which dealings in Dollar deposits are carried out in the
         London interbank market.

                 "Calculation Period" means, as of the last day of any Fiscal
         Quarter, the period of four Fiscal Quarters ended as of such date.

                 "Capital Expenditures" means, for any Person, all expenditures
         for assets which, in accordance with GAAP, are properly classified as
         equipment, real property, improvements, fixed assets or a similar type
         of capitalized asset and which would be required to be capitalized and
         shown on the balance sheet of such Person.

                 "Capital Lease Obligations" means, as to any Person, the
         obligations of such Person to pay rent or other amounts under a lease
         of (or other agreement conveying the right to use) real and/or
         personal property, which obligations are required to be classified and
         accounted for as a capital lease on a balance sheet of such Person
         under GAAP. For purposes of this Agreement, the amount of such Capital
         Lease Obligations shall





                                      -3-
<PAGE>   5
         be the capitalized amount thereof, determined in accordance with GAAP.

                 "Cash Equivalent Investment" means, at any time, (a) any
         evidence of Debt, maturing not more than one year after such time,
         issued or guaranteed by the United States government or any agency
         thereof, (b) commercial paper, maturing not more than one year from
         the date of issue, corporate demand notes or other debt securities
         having a maturity or tender right less than one year from the date of
         issuance thereof, in each case (unless issued by a Bank or its holding
         company) rated in one of the two highest rating categories by Standard
         & Poor's Ratings Group or Moody's Investors Service, Inc., (c) any
         certificate of deposit (or time deposits represented by such
         certificates of deposit) or bankers acceptance, maturing not more than
         one year after such time, or overnight Federal Funds transactions that
         are issued or sold by a commercial banking institution that is a
         member of the Federal Reserve System and has a combined capital and
         surplus and undivided profits of not less than $500,000,000.00, (d)
         any repurchase agreement entered into with any Bank (or other
         commercial banking institution of the stature referred to in clause
         (c)) which (i) is secured by a fully perfected security interest in
         any obligation of the type described in any of clauses (a) through (c)
         and (ii) has a market value at the time such repurchase agreement is
         entered into of not less than 100% of the repurchase obligation of
         such Bank (or other commercial banking institution) thereunder and (e)
         investments in short-term asset management accounts offered by any
         Bank for the purpose of investing in loans to any corporation (other
         than the Borrower or an Affiliate of the Borrower), state or
         municipality, in each case organized under the laws of any state of
         the United States or of the District of Columbia.

                 "Cash Reserves" means for any Person amounts held by such
         Person in Cash or Cash Equivalent Investments.

                 "Cash Taxes" means, for any Person, the sum of all cash income
         taxes paid or required to be paid during the period in question, as
         determined in accordance with GAAP applied consistently.

                 "Charge Debenture (Malaysia)" means a charge debenture of
         Digicon (Malaysia) in favor of the Agent, in substantially the form of
         Exhibit "C-3" attached hereto, as the same may be amended,
         supplemented or modified from time to time.

                 "Charge Debenture (U.K.)" means a charge debenture of
         Geophysical Limited in favor of the Agent, in substantially the form
         of Exhibit "C-4" attached hereto with appropriate completions, as the
         same may be amended, supplemented or modified from time to time.





                                      -4-
<PAGE>   6
                 "Code" means the Internal Revenue Code of 1986, as amended,
         and the regulations promulgated and rulings issued thereunder.

                 "Collateral" has the meaning given to such term in Section
         6.1.

                 "Commitment" means, as applicable, the Revolving Credit
         Commitments.

                 "Compliance Certificate" means a certificate, in substantially
         the form of Exhibit "F" attached hereto, properly completed and signed
         by the Borrower in connection with Section 9.1(c).

                 "Consolidated Current Assets" means, at any particular time,
         all amounts which, in conformity with GAAP, would be included as
         current assets on a consolidated balance sheet of the Borrower and its
         Subsidiaries.

                 "Consolidated Current Liabilities" means, at any particular
         time, all amounts which, in conformity with GAAP, would be included as
         current liabilities on a consolidated balance sheet of the Borrower
         and its Subsidiaries.

                 "Consolidated Liabilities" means, at any particular time, all
         amounts which, in conformity with GAAP, would be included as
         liabilities on a consolidated balance sheet of the Borrower and its
         Subsidiaries.

                 "Consolidated Net Income" means, for any period, the
         consolidated net income (or loss) after income and franchise taxes
         determined in conformity with GAAP of the Borrower and its
         Subsidiaries.

                 "Consolidated Net Tangible Assets" means, at any date, the
         aggregate amount of assets included on the most recent consolidated
         balance sheet of the Borrower and its Restricted Subsidiaries, less
         (a) without duplication, applicable reserves and other properly
         deductible items and goodwill, trade names, trademarks, patents,
         unamortized debt discount and expense and other like intangibles and
         (b) Consolidated Current Liabilities (other than current liabilities
         constituting Indebtedness for borrowed money).

                 "Consolidated Tangible Net Worth" means, at any particular
         time, all amounts which, in conformity with GAAP, would be included as
         Stockholders' Equity on a consolidated balance sheet of the Borrower
         and its Subsidiaries; provided, however, there shall be excluded
         therefrom intangible assets (other than the Data Library), including:
         (a) any amount at which shares of capital stock of the Borrower appear
         as an





                                      -5-
<PAGE>   7
         asset on the Borrower's balance sheet, (b) goodwill, including any
         amounts, however designated, that represent the excess of the purchase
         price paid for assets or stock over the value assigned thereto, and
         (c) loans (to the extent that such are not fully secured) to any
         stockholder, director, officer, or employee of the Borrower or any
         Affiliate of the Borrower.

                 "Contingent Liabilities" means, as applied to any Person,
         those direct or indirect liabilities of that Person which in
         conformity with GAAP, would be included as liabilities of that Person
         on a consolidated balance sheet of the Borrower and its Subsidiaries,
         with respect to any Debt, lease, dividend, letter of credit or other
         obligation (the "primary obligations") of another Person (the "primary
         obligor"), including, without limitation, any obligation of such
         Person, whether or not contingent, (a) to purchase, repurchase or
         otherwise acquire such primary obligations or any property
         constituting direct or indirect security therefor, or (b) to advance
         or provide funds (i) for the payment or discharge of any such primary
         obligation, or (ii) to maintain working capital or equity capital of
         the primary obligor or otherwise to maintain the net worth or solvency
         or any balance sheet item, level of income or financial condition of
         the primary obligor, or (c) to purchase property, securities or
         services primarily for the purpose of assuring the owner of any such
         primary obligation of the ability of the primary obligor to make
         payment of such primary obligation, or (d) otherwise to assure or hold
         harmless the owner of any such primary obligation against loss in
         respect thereof.  The amount of any Contingent Liabilities shall be
         deemed to be an amount equal to the stated or determinable amount of
         the primary obligation in respect of which such Contingent Liabilities
         are made or, if not stated or determinable, the maximum reasonably
         anticipated liability in respect thereof as determined by the Borrower
         in good faith.

                 "Continue," "Continuation," and "Continued" shall refer to the
         continuation pursuant to Section 4.9 of a LIBOR Advance as a LIBOR
         Advance from one Interest Period to the next Interest Period.

                 "Convert," "Conversion," and "Converted" shall refer to a
         conversion pursuant to Section 4.9 or Article V of one Type of Advance
         into another Type of Advance.

                 "Credit Request" has the meaning in Section 3.2 hereof.

                 "Current Maturities" means as to any Person, at any date, the
         current maturities of Funded Debt (other than the Advances) determined
         in accordance with GAAP applied consistently.





                                      -6-
<PAGE>   8
                 "Current Ratio" means, at any particular time, the ratio of
         Consolidated Current Assets to Consolidated Current Liabilities.

                 "Data Library" means all of each of Borrower's and the
         Guarantors' library of proprietary seismic reports and other data.

                 "Debt" means as to any Person at any time (without duplication
         as to such Person and as to such Person's Subsidiaries): (a) all
         obligations of such Person for borrowed money, (b) all obligations of
         such Person evidenced by bonds, notes, debentures, or other similar
         instruments, (c) all obligations of such Person to pay the deferred
         purchase price of property or services, except trade accounts payable
         of such Person arising in the ordinary course of business that are not
         past due by more than one hundred twenty (120) days or which are being
         contested in good faith and for which adequate reserves have been
         established, (d) all Capital Lease Obligations of such Person, (e) all
         obligations secured by a Lien existing on property owned by such
         Person, whether or not the obligations secured thereby have been
         assumed by such Person or are non-recourse to the credit of such
         Person, (f) all reimbursement obligations of such Person (whether
         contingent or otherwise) in respect of letters of credit, bankers'
         acceptances, surety or other bonds and similar instruments, (g) all
         liabilities of such Person in respect of unfunded vested benefits
         under any Plan, and (h) all Contingent Liabilities.

                 "Default" means an Event of Default or the occurrence of an
         event or condition which with notice or lapse of time or both would
         become an Event of Default.

                 "Default Rate" means the lesser of (a) the Applicable Rate
         plus three percent (3%) and (b) the Maximum Rate.

                 "Digicon (Malaysia)" means Digicon (Malaysia) Sdn. Bhd., a
         company organized under the laws of the Federation of Malaysia, and
         its successors and assigns.

                 "Disputes" has the meaning given to such term in Section 16.20
         of this Agreement.

                 "Dividends" means as to any Person, for any period, dividends
         or other payments or distributions (in cash, property or obligations)
         paid or made, as applicable, on account of the capital stock of such
         Person, determined in accordance with GAAP applied consistently to any
         Person other than Digicon (Malaysia) or one of the Subsidiaries.





                                      -7-
<PAGE>   9
                 "Dollars" and "$" mean lawful money of the United States of
         America.

                 "EBITDA" means as to any Person, for any period, the sum of
         Consolidated Net Income for such period plus Interest Expense, Cash
         Taxes and Non-Cash Charges to the extent deducted from Consolidated
         Net Income in such period.

                 "Effective Date" the date on which all the conditions
         precedent set forth in Section 7.1 have been satisfied or waived in
         writing by the Agent and the Banks.

                 "Eligible Assignee" means any commercial bank, savings and
         loan association; savings bank, finance company, insurance company,
         pension fund, mutual fund, or other financial institution (whether a
         corporation, partnership, or other entity) acceptable to the Agent,
         and having combined capital and surplus of at least $500,000,000.

                 "Eligible Domestic/Domestic Accounts" means, at any time, all
         aggregate trade accounts and trade accounts receivable of the
         Borrower, Geophysical Corp., Land and other Guarantors designated by
         the Borrower that are created in the ordinary course of business and
         satisfy the following minimum conditions:

                          (a)     The account complies with all applicable
                 laws, rules, and regulations, including, without limitation,
                 usury laws, the Federal Truth in Lending Act, and Regulation Z
                 of the Board of Governors of the Federal Reserve System;

                          (b)     The account has not been outstanding for more
                 than ninety (90) days past the original due date of the
                 related invoice and one hundred twenty (120) days have not
                 expired since the date of the related invoice;

                          (c)     The account was created in connection with
                 (i) the sale of goods by such Person in the ordinary course of
                 business and such sale has been consummated and such goods
                 have been shipped and delivered to and received by the account
                 debtor, or (ii) the performance of services by such Person in
                 the ordinary course of business and such services have been
                 completed and accepted by the account debtor;

                          (d)     The account arises from an enforceable
                 contract, the performance of which either (i) has been
                 completed by such Person, or (ii) has been partially completed
                 with respect to accounts which give rise to progress payments;
                 provided that only that portion of





                                      -8-
<PAGE>   10
                 such account for which performance has been completed is 
                 eligible;

                          (e)     The account does not arise from the sale of
                 any goods that is on a bill-and-hold, guaranteed sale,
                 sale-or-return, sale on approval, consignment, or any other
                 repurchase or return basis;

                          (f)     Such Person has good and indefeasible title
                 to the account and the account is not subject to any Lien
                 except (as provided in Section 6.3) perfected first priority
                 Liens in favor of the Agent;

                          (g)     The account is not subject to any
                 "contra-account", setoff, counterclaim, defense, dispute,
                 recoupment, or adjustment other than normal discounts for
                 prompt payment; provided, however, that so long as the account
                 debtor is not refusing or failing timely to pay the balance of
                 the amounts owed by it to such Person with respect to the
                 subject account, then there shall be excluded from eligibility
                 only that portion of the subject account that is the subject
                 of such "contra-account," set off, counterclaim, defense,
                 dispute, recoupment or adjustment;

                          (h)     The account debtor is not insolvent or the
                 subject of any bankruptcy or insolvency proceeding and has not
                 made an assignment for the benefit of creditors, suspended
                 normal business operations, dissolved, liquidated, terminated
                 its existence, ceased to pay its debts as they become due, or
                 suffered a receiver or trustee to be appointed for any of its
                 assets or affairs;

                          (i)     The account is not evidenced by chattel paper
                 or an instrument;

                          (j)     The account debtor has not retained or
                 refused to retain, or otherwise notified such Person of any
                 dispute concerning, or claimed nonconformity of, any of the
                 goods from the sale of which the account arose; provided,
                 however, that so long as the account debtor is not refusing or
                 failing timely to pay the balance of the amounts owed by it to
                 such Person with respect to the subject account or other
                 accounts, then there shall be excluded from eligibility only
                 that portion of the subject account that is subject of such
                 retention, refusal, notice or claim;

                          (k)     The account is not owed by an Affiliate of
                 such Person or any employee of such Person or of any such
                 Affiliate;





                                      -9-
<PAGE>   11
                          (l)     The account is payable in Dollars by the
                 account debtor;

                          (m)     The account shall be ineligible if more than
                 twenty-five percent (25%) of the aggregate balances then
                 outstanding on accounts owed by such account debtor and its
                 Affiliates to such Person are more than one hundred twenty
                 (120) days past due from the due dates of their original
                 invoices or if more than one hundred fifty (150) days have
                 expired from the dates of the original invoices;

                          (n)     The account shall be ineligible if the
                 account debtor is the United States of America, any state or
                 municipality, or any department, agency, or instrumentality of
                 the foregoing;

                          (o)     The account shall be ineligible if the
                 account is owed by an account debtor not a resident of the
                 United States of America;

                          (p)     That portion of the aggregate amount of
                 accounts owed by any one account debtor which is in excess of
                 twenty percent (20%) of the then aggregate amount of all
                 Eligible Domestic/Domestic Accounts, Eligible Domestic/Foreign
                 Accounts and Eligible Foreign/Foreign Accounts shall be
                 ineligible;

                          (q)     Accounts which arise out of or are bill and
                 holds, retentions and prebillings shall be ineligible;

                          (r)     The account has not been otherwise determined
                 by the Agent in its reasonable discretion to be ineligible
                 because of the credit worthiness of the account debtor; and

                          (s)     If an Event of Default has occurred, the
                 account is subject to a first priority Lien in favor of the
                 Agent, subject to the provisions of Section 6.3.

                 "Eligible Domestic/Foreign Accounts" means, at any time, all
         aggregate accounts of the Borrower, Geophysical Corp., Land and other
         Guarantors designated by the Borrower that (a) are created in the
         ordinary course of business and which would constitute Eligible
         Domestic/Domestic Accounts according to the definition thereof but for
         either or both of the requirements set forth at paragraph (o) of such
         definition that such account is not eligible if it is owed by an
         account debtor not resident in the United States and at paragraph (l)
         of such definition that such account is not eligible if it is not
         payable in Dollars, and (b) if such accounts are governed by the law
         of a jurisdiction other than one of the states of





                                      -10-
<PAGE>   12
         the United States, (i) are not subject to contractual restrictions of
         the rights to payment thereunder, or (ii) the Borrower, Geophysical
         Corp. or Land, as applicable, has obtained written consent to its
         assignment of the rights to payment thereunder from the account debtor
         and has provided a copy thereof to the Agent, or (iii) the Agent has
         received satisfactory legal advice that such restrictions are
         unenforceable.

                 "Eligible Foreign/Foreign Accounts" means, at any time, all
         aggregate accounts of Geophysical Limited, Asia Pacific, the
         Partnership, Digicon (Malaysia) and other Guarantors designated by the
         Borrower that (a) are created in the ordinary course of business and
         which would constitute Eligible Domestic/Domestic Accounts according
         to the definition thereof set forth in this Section 1.01 but for any
         or all of the requirements that (i) the account be owed to the
         Borrower, Geophysical Corp. and Land and not Geophysical Limited, the
         Partnership and Asia Pacific, (ii) the account be payable in Dollars,
         (iii) the account be owed by an account debtor resident in the United
         States of America, and (b) if such accounts are governed by the law of
         a jurisdiction other than one of the States of the United States or
         England (i) are not subject to contractual restrictions of the rights
         to payment thereunder, or (ii) Geophysical Limited, Asia Pacific, the
         Partnership or Digicon (Malaysia), as applicable, has obtained written
         consent to the assignment of the rights to payment thereunder from the
         account debtor and has provided the Agent with a copy thereof, or
         (iii) the Agent has received satisfactory legal advice that such
         restrictions are unenforceable.

                 "Environmental Law" means any and all foreign, federal, state,
         and local laws, regulations, and requirements pertaining to health,
         safety, or the environment, including, without limitation, the
         Comprehensive Environmental Response, Compensation and Liability Act
         of 1980, 42 U.S.C. Section  9601 et seq., the Resource Conservation
         and Recovery Act of 1976, 42 U.S.C. Section  6901 et seq., the
         Occupational Safety and Health Act, 29 U.S.C. Section  651 et seq.,
         the Clean Air Act, 42 U.S.C. Section  7401 et seq., the Clean Water
         Act, 33 U.S.C. Section  1251 et seq., and the Toxic Substances Control
         Act, 15 U.S.C. Section  2601 et seq., as such laws, regulations, and
         requirements may be amended or supplemented from time to time.

                 "Environmental Liabilities" means, as to any Person, all
         liabilities, obligations, responsibilities, Remedial Actions, losses,
         damages, punitive damages, consequential damages, treble damages,
         costs, and expenses, (including, without limitation, all reasonable
         fees, disbursements and expenses of counsel, expert and consulting
         fees and costs of investigation and feasibility studies), fines,
         penalties, sanctions, and





                                      -11-
<PAGE>   13
         interest incurred as a result of any claim or demand, by any Person,
         whether based in contract, tort, implied or express warranty, strict
         liability, criminal or civil statute, including any Environmental Law,
         permit, order or agreement with any Governmental Authority or other
         Person, arising from environmental, health or safety conditions or the
         Release or threatened Release of a Hazardous Material into the
         environment, resulting from the past, present, or future operations of
         such Person or its Affiliates.

                 "ERISA" means the Employee Retirement Income Security Act of
         1974, as amended from time to time, and the regulations and published
         interpretations thereunder.

                 "ERISA Affiliate" means any corporation or trade or business
         which is or has been a member of the same controlled group of
         corporations (within the meaning of Section 414(b) of the Code) as the
         Borrower or is or has been under common control (within the meaning of
         Section 414(c) of the Code) with the Borrower.

                 "Euroseis" means Euroseis, Inc., a Delaware corporation, and
         its successors and assigns.

                 "Event of Default" has the meaning specified in Section 12.1.

                 "Exchange Rate" means and refers to the nominal rate of
         exchange available to the Agent in a chosen foreign exchange market
         for the purchase by the Agent at 11:00 A.M., Houston, Texas time,
         three (3) Business Days prior to any date of determination, expressed
         as the number of units of such currency per one Dollar.

                 "Federal Funds Rate" means, for any day, the rate per annum,
         (rounded upwards, if necessary, to the nearest 1/16 of 1%) equal to
         the weighted average of the rates on overnight Federal funds
         transactions with members of the Federal Reserve System arranged by
         Federal funds brokers on such day, as published by the Federal Reserve
         Bank of New York on the Business Day next succeeding such day,
         provided that (a) if the day for which such rate is to be determined
         is not a Business Day, the Federal Funds Rate for such day shall be
         such rate on such transactions on the next preceding Business Day as
         so published on the next succeeding Business Day, and (b) if such rate
         is not so published on such next succeeding Business Day, the Federal
         Funds Rate for any day shall be the average rate charged to the Agent
         on such day on such transactions as determined by the Agent.

                 "Fiscal Quarter" means a fiscal quarter of a Fiscal Year.





                                      -12-
<PAGE>   14
                 "Fiscal Year" means the fiscal year of the Borrower and its
         Subsidiaries, which period is the twelve (12) month period ending on
         July 31 of each year.

                 "Fixed Charge Coverage Ratio" means as to any Person, at any
         date (a) EBITDA for the Calculation Period (i) minus Cash Taxes for
         the Calculation Period, and (ii) plus Cash Reserves as of such date,
         divided by (b) the sum of (i) Current Maturities as of such date, (ii)
         Interest Expense for the Calculation Period, and (iii) non-financed
         Capital Expenditures incurred by Borrower and its Subsidiaries during
         the Calculation Period.

                 "Funded Debt" means, at any time, the aggregate obligations of
         the Borrower and its Subsidiaries (determined on a consolidated basis)
         for Debt for borrowed money, including, without limitation, Capital
         Lease Obligations.

                 "Funded Debt to Capitalization Ratio" means, at any time, (a)
         Funded Debt (other than Subordinated Debt) divided by (b) the sum of
         (i) Funded Debt plus (ii) Stockholders Equity plus (iii) Subordinated
         Debt.

                 "Funded Debt to EBITDA Ratio" means, at any time, (a) Funded
         Debt divided by (b) EBITDA for the Calculation Period.

                 "GAAP" means generally accepted accounting principles, applied
         on a consistent basis, as set forth in Opinions of the Accounting
         Principles Board of the American Institute of Certified Public
         Accountants and/or in statements of the Financial Accounting Standards
         Board and/or their respective successors and which are applicable in
         the circumstances as of the date in question.  Accounting principles
         are applied on a "consistent basis" when the accounting principles
         applied in a current period are comparable in all material respects to
         those accounting principles applied in a preceding period.

                 "Geophysical Corp." means Digicon Geophysical Corp., a
         Delaware corporation, and its successors and assigns.

                 "Geophysical Limited" means Veritas DGC, Ltd., a company
         organized under the laws of England and Wales, and its successors and
         assigns.

                 "Governmental Authority" means any nation or government, any
         state or political subdivision thereof and any entity exercising
         executive, legislative, judicial, regulatory, or administrative
         functions of or pertaining to government.

                 "Guarantors" means all the Material Subsidiaries, and
         "Guarantor" means any one of the Guarantors.  The Guarantors as of the
         Effective Date are listed on Schedule 1.1.B.





                                      -13-
<PAGE>   15
                 "Guaranty Agreement" means a guaranty agreement executed by
         each Guarantor in favor of the Agent, in substantially the form
         attached hereto as Exhibit "D" with appropriate completions, as the
         same may be amended, supplemented, or modified from time to time, and
         Guaranty Agreements means more than one Guaranty Agreement.

                 "Hazardous Material" means any substance, product, waste,
         pollutant, material, chemical, contaminant, constituent, or other
         material which is or becomes listed, regulated, or addressed under any
         Environmental Law, including, without limitation, asbestos, petroleum,
         and polychlorinated biphenyls.

                 "Indenture" means the Indenture dated October 23, 1996 between
         Borrower and Fleet National Bank, a national banking association, as
         such Indenture existed on October 23, 1996, without taking into
         account any amendments, modifications, thereof or supplements thereto,
         unless such amendment, modification or supplement has the effect of
         increasing the Maximum Bank Credit Amount, increasing the Permitted
         Subsidiary Indebtedness, or eliminating or reducing the restrictions
         contained in the Indenture with respect to incurring Indebtedness to
         the Banks or securing such Indebtedness to the Banks.

                 "Indebtedness" shall have the meaning given to such term in
         the Indenture.

                 "Interest Expense" means the sum of all cash interest expense
         paid or required by its terms to be paid during the period in
         question, as determined in accordance with GAAP applied consistently,
         with respect to the Funded Debt of a Person or any portion thereof.

                 "Interest Period" means, with respect to LIBOR Advances, each
         period commencing on the date such Advances are made or Converted from
         Advances of another Type or, in the case of each subsequent,
         successive Interest Period applicable to a LIBOR Advance, the last day
         of the next preceding Interest Period with respect to such Advance,
         and ending on that day which is thirty (30), sixty (60) or ninety (90)
         days thereafter, as the Borrower may select as provided in Section 4.1
         or 4.9 hereof.  Notwithstanding the foregoing: (a) each Interest
         Period which would otherwise end on a day which is not a Business Day
         shall end on the next succeeding Business Day; (b) any Interest Period
         which would otherwise extend beyond the Revolving Credit Termination
         Date shall end on the Revolving Credit Termination Date; (c) no more
         than three Interest Periods for each LIBOR Advance shall be in effect
         at the same time; and (d) no Interest Period for any LIBOR Advances
         shall have a duration of less than thirty (30) days





                                      -14-
<PAGE>   16
         and, if the Interest Period for any LIBOR Advance would otherwise be a
         shorter period, such Advance shall be a Prime Rate Advance.

                 "Land" means Veritas DGC Land Inc., a Delaware corporation,
         and its successors and assigns.

                 "Letter of Credit" means a standby Letter of Credit issued
         pursuant to Article III of this Agreement and "Letters of Credit"
         means more than one Letter of Credit.

                 "Letter of Credit Agreements" means the application and letter
         of credit agreements and other documents, if any, then required by the
         Issuing Bank now or hereafter executed by the Borrower, such
         agreements to be on the Issuing Bank's standard form (with such
         changes thereto as the Borrower and the Issuing Bank may agree from
         time to time) and completed in form and substance satisfactory to the
         Issuing Bank.

                 "Letter of Credit Liabilities" means, at any time, the
         aggregate undrawn face amounts of all outstanding Letters of Credit in
         Dollars calculated at the applicable Exchange Rate.

                 "LIBOR Advances" means Advances the interest rates on which
         are determined on the basis of the rates referred to in the definition
         of "Adjusted LIBOR Rate".

                 "LIBOR Margin" has the meaning given to such term in Schedule
         1.1.A.

                 "LIBOR Rate" means, for any LIBOR Advance for any Interest
         Period therefor, the rate per annum offered for Dollar deposits of not
         less than $1,000,000.00 for a period of time equal to such Interest
         Period as of 11:00 A.M. City of London, England time two (2) London
         Business Days prior to the first date of such Interest Period as shown
         on the display designated as "British Bankers Assoc. Interest
         Settlement Rates" on the Telerate System ("Telerate"), Page 3750 or
         Page 3740, or such other page or pages as may replace such pages on
         Telerate for the purpose of displaying such rate; provided, however,
         that if such rate is not available on Telerate then such offered rate
         shall be otherwise independently determined by the Agent from an
         alternate, substantially similar independent source available to the
         Agent or shall be calculated by the Agent by a substantially similar
         methodology as that theretofore used to determine such offered rate in
         Telerate.

                 "Lien" means any lien, mortgage, security interest, tax lien,
         financing statement, pledge, charge, hypothecation, assignment,
         preference, priority, or other encumbrance of any kind or nature
         whatsoever (including, without limitation, any





                                      -15-
<PAGE>   17
         conditional sale or title retention agreement), whether arising by
         contract, operation of law, or otherwise.

                 "Loan Documents" means this Agreement and all promissory
         notes, security agreements, deeds of trust, assignments, guaranties,
         and other instruments, documents, and agreements executed and
         delivered pursuant to or in connection with this Agreement, as such
         instruments, documents, and agreements may be amended, modified,
         renewed, extended, or supplemented from time to time.

                 "London Business Day" means any day other than a Saturday,
         Sunday or a day on which banking institutions are generally authorized
         or obligated by law or executive order to close in the City of London,
         England.

                 "Material Adverse Effect" means (a) a material adverse effect
         on (i) the business, operations, property, condition (financial or
         otherwise) or prospects of the Borrower and its Subsidiaries, taken as
         a whole, (ii) the ability of the Borrower and its Subsidiaries, taken
         as a whole, to perform their respective obligations under this
         Agreement or any of the other Loan Documents, or (iii) the validity or
         enforceability of this Agreement or any of the other Loan Documents,
         or the rights or remedies of the Agent, the Banks or the Issuing Bank
         hereunder or thereunder or (b) civil or criminal liability for the
         Agent or the Banks under Environmental Laws.

                 "Material Subsidiary" means any Subsidiary whose total assets
         have a value (determined in accordance with GAAP) which exceeds
         $25,000,000.00 for a period of ninety (90) consecutive days or more.

                 "Maximum Bank Credit Amount" has the meaning given to such
         term in the Indenture.

                 "Maximum Rate" means, with respect to any Bank and the holder
         of any Revolving Credit Note, the maximum nonusurious interest rate,
         if any, that at any time, or from time to time, may be contracted for,
         taken, reserved, charged or received on the indebtedness created under
         this Agreement, the Revolving Credit Notes or any other Loan Document
         under the laws which are presently in effect in the United States and
         the State of Texas applicable to the Banks, such holders and such
         indebtedness or, to the extent permitted by law, under such applicable
         laws of the United States and the State of Texas which may hereafter
         be in effect and which allow a higher maximum nonusurious interest
         rate than applicable laws now allow.  To the extent that Chapter 303
         of the Texas Finance Code (the "Code"), is relevant to any Bank or any
         holder of any Revolving Credit Note for the purposes of determining
         the





                                      -16-
<PAGE>   18
         Maximum Rate, each such Person shall determine such applicable legal
         rate under the Code pursuant to the "weekly ceiling," from time to
         time in effect, as referred to and defined in Chapter 303 of the Code;
         subject, however, to the limitations on such applicable ceiling
         referred to and defined in Chapter 303 of the Code, and further
         subject to any right such Person may have subsequently, under
         applicable law, to change the method of determining the Maximum Rate.
         If no Maximum Rate is established by applicable law, then the Maximum
         Rate shall be equal to eighteen percent (18%).

                 "Multiemployer Plan" means a multiemployer plan defined as
         such in Section 3(37) of ERISA to which contributions have been made
         by the Borrower or any predecessor thereto or any ERISA Affiliate and
         which is covered by Title IV of ERISA.

                 "Non-Cash Charges" means as to any Person, for any period,
         depreciation, amortization and other non-cash charges (including
         amortization of the capitalized balance of the Data Library),
         determined in accordance with GAAP applied consistently.

                 "Notice of Conversion/Continuation" means a certificate,
         substantially in the form of Exhibit "H" hereto, properly completed
         and signed by an Authorized Officer that an Advance is being Converted
         to, or Continued as, a LIBOR Advance.

                 "Obligated Party" means each Guarantor or any other Person who
         is or becomes party to any agreement pursuant to which such Person
         guarantees or secures payment and performance of the Obligations or
         any part thereof.

                 "Obligations" means all obligations, indebtedness, and
         liabilities of the Borrower to the Agent, the Issuing Banks and the
         Banks, or any of some of them, arising pursuant to any of the Loan
         Documents, now existing or hereafter arising, whether direct,
         indirect, related, unrelated, fixed, contingent, liquidated,
         unliquidated, joint, several, or joint and several, including, without
         limitation, the obligations, indebtedness, and liabilities of the
         Borrower under this Agreement and the other Loan Documents (including,
         without limitation, all of Borrower's contingent reimbursement
         obligations in respect of Letters of Credit), and all interest
         accruing thereon and all attorneys' fees and other expenses incurred
         in the enforcement or collection thereof

                 "Parties" has the meaning given to such term in Section 14.20.

                 "Partnership" means Veritas Energy Services Partnership, an
         Alberta general partnership, and its successors and assigns.





                                      -17-
<PAGE>   19
                 "Payment Date" means, (a) in the case of Prime Rate Advances,
         the last day of each March, June, September and December, commencing
         September 30, 1998, (b) in the case of LIBOR Advances the last day of
         each Interest Period therefor, and (c) in the case of all Advances,
         the Revolving Credit Termination Date.

                 "Payor" has the meaning given to such term in Section 4.6.

                 "PBGC" means the Pension Benefit Guaranty Corporation or any
         entity succeeding to all or any of its functions under ERISA.

                 "Percentage" means at any time with respect to any Bank, such
         Bank's portion, expressed as a percentage, of the aggregate Revolving
         Credit Commitments.

                 "Permitted Liens" has the meaning assigned to it in Section
         10.2.

                 "Permitted Subsidiary Indebtedness" means, with respect to
         Restricted Subsidiaries, Indebtedness in an aggregate principal amount
         outstanding up to the amount, if any, by which (a) ten percent (10%)
         of Consolidated Net Tangible Assets exceeds (b) the greater of (i)
         $20,000,000.00 or (ii) the aggregate principal amount of outstanding
         Indebtedness of Borrower incurred pursuant to Section 10.11(a) of the
         Indenture which is secured as permitted by the Indenture.

                 "Person" means any individual, corporation, business trust,
         association, company, partnership, joint venture, Governmental
         Authority, or other entity.

                 "Plan" means any employee benefit or other plan established or
         maintained by the Borrower or any ERISA Affiliate.

                 "Prime Rate" means, at any time, the rate of interest per
         annum then most recently published in The Wall Street Journal (or any
         successor publication if The Wall Street Journal is no longer
         published) in the "Money Rates" section (or such successor section) as
         the "Prime Rate."  If a range of prime interest rates per annum is so
         published, "Prime Rate" shall mean the highest rate per annum in such
         published range.  If the definition of "Prime Rate" is no longer
         published in The Wall Street Journal (or any successor publication),
         "Prime Rate" shall mean, at any time, the rate of interest per annum
         then most recently established by the Agent as its prime rate or
         equivalent base rate.  Each change in any interest rate provided for
         herein based upon the Prime Rate resulting from a change in the Prime
         Rate shall take effect without notice to





                                      -18-
<PAGE>   20
         the Borrower or any Guarantor at the time of such change in the Prime
         Rate.

                 "Prime Rate Advances" means Advances that bear interest at
         rates based upon the Prime Rate.

                 "Prime Rate Margin" see Schedule 1.1.A.

                 "Principal Office" means the respective principal office of
         the Agent, the Issuing Banks and the Banks, presently located for such
         Persons at the addresses shown under the signature line of such
         Persons in this Agreement.

                 "Prohibited Transaction" means any transaction set forth in
         Section 406 of ERISA or Section 4975 of the Code.

                 "Quarterly Fee Payment Date" means the last day of each March,
         June, September, and December of each year, the first of which shall
         be September 30, 1998.

                 "Register" has the meaning assigned to it in Section 14.8(d).

                 "Regulation D" means Regulation D of the Board of Governors of
         the Federal Reserve System as the same may be amended or supplemented
         from time to time.

                 "Regulatory Change" means, with respect to a Bank, any change
         after the date of this Agreement in United States federal, state, or
         foreign laws or regulations (including Regulation D) or the adoption
         or making after such date of any interpretations, directives, or
         requests applying to a class of banks including such Bank of or under
         any United States federal or state, or any foreign, laws or
         regulations (whether or not having the force of law) by any court or
         governmental or monetary authority charged with the interpretation or
         administration thereof.

                 "Release" means, as to any Person, any release, spill,
         emission, leaking, pumping, injection, deposit, disposal,
         disbursement, leaching, or migration of Hazardous Materials into the
         indoor or outdoor environment or into or out of property owned by such
         Person, including, without limitation, the movement of Hazardous
         Materials through or in the air, soil, surface water, ground water, or
         property.

                 "Remedial Action" means all actions required to (a) clean up,
         remove, treat, or otherwise address Hazardous Materials in the indoor
         or outdoor environment, (b) prevent the Release or threat of Release
         or minimize the further Release of Hazardous Materials so that they do
         not migrate or endanger or threaten to endanger public health or
         welfare or the indoor or outdoor





                                      -19-
<PAGE>   21
         environment, or (c) perform pre-remedial studies and investigations in
         post-remedial monitoring and care.

                 "Reportable Event" means any of the events set forth in
         Section 4043 of ERISA.

                 "Required Banks" means Banks having Percentages aggregating
         sixty six and two thirds percent (66 2/3%) or more, but not less than
         two Banks.

                 "Reserve Requirement" means, for any LIBOR Advance for any
         Interest Period therefor, the average maximum rate at which reserves
         (including any marginal, supplemental or emergency reserves) are
         required to be maintained during such Interest Period under Regulation
         D by member banks of the Federal Reserve System in New York City with
         deposits exceeding one billion Dollars against "Eurocurrency
         Liabilities" as such term is used in Regulation D.  Without limiting
         the effect of the foregoing, the Reserve Requirement shall reflect any
         other reserves required to be maintained by such member banks by
         reason of any Regulatory Change against (i) any category of
         liabilities which includes deposits by reference to which the Adjusted
         LIBOR Rate is to be determined, or (ii) any category of extensions of
         credit or other assets which include LIBOR Advances.

                 "Restricted Subsidiary" has the meaning given to such term in
         the Indenture.  The Restricted Subsidiaries as of the Effective Date
         as listed on Schedule 1.1.C.

                 "Revolving Credit Commitment" means as to each Bank, the
         obligation of such Bank to make (a) Advances and (b) subject to
         applicable sublimits, to purchase participations in Letters of Credit
         pursuant to Section 3.5, in an aggregate principal amount at any one
         time outstanding up to but not exceeding the amount set forth opposite
         the name of such Bank on the signature pages hereto under the heading
         "Revolving Credit Commitment," or on the signature pages of an
         Assignment and Acceptance, as the case may be, as such amount may be
         reduced pursuant to Section 2.7 or terminated pursuant to Section 2.7
         or Section 12.2.

                 "Revolving Credit Notes" means the promissory notes of the
         Borrower payable to the order of the Banks, in substantially the form
         attached hereto as Exhibit "A" with appropriate completions, and all
         extensions, renewals, replacements, modifications, supplements or
         rearrangements thereof from time to time, and "Revolving Credit Note"
         means any one of the Revolving Credit Notes.

                 "Revolving Credit Termination Date" means 11:00 A.M. Houston,
         Texas time on July 27, 2001, or such earlier date and





                                      -20-
<PAGE>   22
         time on which the Revolving Credit Commitment terminates as provided
         in this Agreement.

                 "RICO" means the Racketeer Influenced and Corrupt Organization
         Act of 1970, as amended from time to time.

                 "Secured Obligations" means (a) while the Indenture is in
         effect, the Obligations other than that portion of principal amount of
         the Obligations which exceeds, at the time of the determination
         thereof, the greater of (i) the greater of (A) ten percent (10%) of
         Consolidated Net Tangible Assets, or (B) the Maximum Bank Credit
         Amount and (ii) any less restrictive prohibition as may be found in
         the Indenture as a result of an amendment to the Indenture that would
         constitute an amendment to the Indenture under the definition of
         Indenture found in this Agreement and (b) after the termination of the
         Indenture, or after the elimination of the applicable restrictions
         therein contained regarding the granting of Liens by Restricted
         Subsidiaries to secure Indebtedness to the Banks and the incurrence of
         Indebtedness to the Banks, the Obligations.

                 "Security Agreement-Borrower" means a security agreement
         executed by the Borrower in favor of the Agent in substantially the
         form attached hereto as Exhibit "B" with appropriate completions, as
         the same may be amended, supplemented, or modified from time to time.

                 "Security Agreement-Guarantor" means (a) with respect to each
         of the Guarantors on the Effective Date, other than the Partnership,
         Digicon (Malaysia) and Geophysical Limited, a security agreement
         executed by such Guarantor in favor of the Agent in substantially the
         form attached hereto as Exhibit "C-1", (b) with respect to the
         Partnership, a security agreement executed by the Partnership in favor
         of Agent in substantially the form of Exhibit "C-2", (c) with respect
         to Digicon (Malaysia) the Charge Debenture (Malaysia), (d) with
         respect to Geophysical Limited, the Charge Debenture (U.K.) and (e)
         with respect to any other Guarantor a security agreement or other
         instrument having the same effect, in form and substance satisfactory
         to the Agent, executed by such Guarantor in favor of the Agent, all
         with appropriate completions, as the same may be amended, supplemented
         or modified from time to time, and "Security Agreements-Guarantors"
         means more than one Security Agreement-Guarantor.

                 "Senior Debt" means the Debt evidenced by the Senior Notes.

                 "Senior Notes" means the Senior Notes due 2003 in the
         aggregate principal amount of $75,000,000, issued by the Borrower
         pursuant to the Indenture.





                                      -21-
<PAGE>   23
                 "Stockholders Equity" has the meaning given to such term under
         GAAP.

                 "Subordinated Debt" means Debt of a Person which has been
         subordinated to the Obligations in form and substance and upon terms
         satisfactory to the Agent.

                 "Subsidiary" means any Person of which or in which the
         Borrower and its other Subsidiaries own or control, directly or
         indirectly, fifty percent (50%) or more of (a) the combined voting
         power of all classes having general voting power under ordinary
         circumstances to elect a majority of the directors or equivalent body
         of such Person, if it is a corporation, (b) the capital interest or
         profits interest of such Person, if it is a partnership, limited
         liability company, joint venture or similar entity, or (c) the
         beneficial interest of such Person, if it is a trust, association or
         other unincorporated association or organization.

                 "Systems" shall have the meaning given to such term in Section
         8.21.

                 "Telerate" shall have the meaning given to such term in the
         definition of the term "LIBOR Rate".

                 "Type" means any type of Advance (i.e. Prime Rate Advance or
         LIBOR Advance).

                 "UCC" means the Uniform Commercial Code as in effect in the
         State of Texas from time to time.

                 "Year 2000 Compliant" shall have the meaning given to such
         term in Section 8.21.

         Section 1.2.     Other Definitional Provisions.  All definitions
contained in this Agreement are equally applicable to the singular and plural
forms of the terms defined.  The words "hereof", "herein", and "hereunder" and
words of similar import referring to this Agreement refer to this Agreement as
a whole and not to any particular provision of this Agreement.  Unless
otherwise specified, all Article and Section references pertain to this
Agreement.  All accounting terms not specifically defined herein shall be
construed in accordance with GAAP.  Terms used herein that are defined in the
UCC, unless otherwise defined herein, shall have the meanings specified in the
UCC.





                                      -22-
<PAGE>   24
                                   ARTICLE II.

                                    Advances

         Section 2.1.     Revolving Credit Commitments.  Subject to the terms
and conditions of this Agreement, each Bank severally agrees to make one or
more Advances to the Borrower from time to time from the date hereof to and
including the Revolving Credit Termination Date in an aggregate principal
amount at any time outstanding up to but not exceeding the amount of such
Bank's Revolving Credit Commitment, provided that the aggregate amount of all
Advances at any time outstanding shall not exceed the lesser of (a) the
aggregate of the Revolving Credit Commitments minus the outstanding Letter of
Credit Liabilities and (b) the Borrowing Base minus the outstanding Letter of
Credit Liabilities.  Subject to the foregoing limitations, and the other terms
and provisions of this Agreement, the Borrower may borrow, repay, and reborrow
hereunder the aggregate amount of the Revolving Credit Commitments by means of
Advances.  Each Advance made by each Bank shall be made and maintained at such
Bank's Principal Office.

         Section 2.2.     The Revolving Credit Notes.  The obligation of the
Borrower to repay the Advances and interest thereon shall be evidenced by a
Revolving Credit Note executed by the Borrower, payable to the order of each
Bank, in the principal amount of such Bank's Revolving Credit Commitment as
originally in effect and dated the date hereof or such later date as may be
required with respect to transactions contemplated by Section 14.8.

         Section 2.3.     Repayment of Advances.  The Borrower shall repay the
unpaid principal amount of all Advances on the Revolving Credit Termination
Date.

         Section 2.4.     Interest.  The unpaid principal amount of the
Advances shall bear interest prior to maturity at a varying rate per annum
equal from day to day to the lesser of (a) the Maximum Rate, and (b) the
Applicable Rate.  If at any time the Applicable Rate for any Advance shall
exceed the Maximum Rate, thereby causing the interest accruing on such Advance
to be limited to the Maximum Rate, then any subsequent reduction in the
Applicable Rate for such Advance shall not reduce the rate of interest on such
Advance below the Maximum Rate until the aggregate amount of interest accrued
on such Advance equals the aggregate amount of interest which would have
accrued on such Advance if the Applicable Rate had at all times been in effect.
Accrued and unpaid interest on the Advances shall be due and payable as
follows:

                 (i)      on each Payment Date; and

                 (ii)     on the Revolving Credit Termination Date.





                                      -23-
<PAGE>   25
Notwithstanding the foregoing, any outstanding principal of any Advance and (to
the fullest extent permitted by law) any other amount payable by the Borrower
under this Agreement or any other Loan Document that is not paid in full when
due (whether at stated maturity, by acceleration, or otherwise) shall bear
interest at the Default Rate for the period from and including the due date
thereof to but excluding the date the same is paid in full.  Interest payable
at the Default Rate shall be payable from time to time on demand.

         Section 2.5.     Use of Proceeds.  The proceeds of Advances shall be
used by the Borrower to refinance existing debt and for general corporate
purposes (including the purchase of fixed assets) in the ordinary course of
business.

         Section 2.6.     Revolving Credit Commitment Fee.  The Borrower agrees
to pay to the Agent for the account of each Bank a commitment fee on the daily
average unused amount of such Bank's Revolving Credit Commitment for the period
from and including the date of this Agreement to and including the Revolving
Credit Termination Date at the rate per annum set forth on Schedule 1.1.A.
under "Rate for Non-Use Fee" based on a 360 day year and the actual number of
days elapsed.  Accrued commitment fee shall be payable in arrears on each
Quarterly Fee Payment Date and on the Revolving Credit Termination Date.

         Section 2.7.     Reduction or Termination of Revolving Credit
Commitment.  The Borrower shall have the right to terminate in whole or reduce
in part the unused portion of the Revolving Credit Commitments upon at least
three Business Days prior notice (which notice shall be irrevocable) to the
Agent specifying the effective date thereof, whether a termination or reduction
is being made, and the amount of any partial reduction, provided, however, that
the Revolving Credit Commitments shall never be reduced below an amount equal
to the aggregate outstanding Letter of Credit Liabilities. Each partial
reduction shall be in the amount of $1,000,000 or an integral multiple thereof
and the Borrower shall simultaneously prepay the Advances by the amount by
which the unpaid principal amount of the Advances plus the Letter of Credit
Liabilities exceeds the Revolving Credit Commitments (after giving effect to
such notice) plus accrued and unpaid interest on the principal amount so
prepaid.  The Revolving Credit Commitments may not be reinstated after they
have been terminated or reduced.


                                  ARTICLE III.

                               Letters of Credit

         Section 3.1.     Letters of Credit.  (a) Subject to, and upon the
terms, conditions, covenants and agreements contained herein and in the Letter
of Credit Agreements, prior to the Revolving





                                      -24-
<PAGE>   26
Credit Termination Date, the Issuing Bank agrees to issue irrevocable standby
letters of credit ("Letters of Credit"), in form satisfactory to the Issuing
Bank, for the account of the Borrower or any Guarantor; provided, however, that
the outstanding Letter of Credit Liabilities shall not at any time exceed the
least of (a) $15,000,000, (b) an amount equal to the aggregate amount of the
Revolving Credit Commitments minus the outstanding Advances, and (c) the
Borrowing Base minus the outstanding Advances.  In the event of an actual
conflict between the terms and conditions of this Agreement and the terms and
conditions of any Letter of Credit Agreement, then the terms and conditions of
this Agreement shall prevail.  Letters of Credit shall expire on a date which
is not more than two (2) years from the date of issuance, shall expire no later
than ten (10) days prior to the Revolving Credit Termination Date, must be
satisfactory in form to the Issuing Bank, and must be issued pursuant to a
Letter of Credit Agreement.  No Letter of Credit shall require any payment by
the Issuing Bank to the beneficiary thereof pursuant to a drawing prior to the
third Business Day following presentment of a draft and any related documents
to the Issuing Bank.

         (b)     On or before the Revolving Credit Termination Date, the
Borrower agrees to deposit with and pledge to the Agent cash or cash equivalent
investments in an amount equal to all outstanding Letter of Credit Liabilities.

         Section 3.2.     Letter of Credit Procedure.  Each Letter of Credit
shall be issued upon receipt by the Issuing Bank of a written request of the
Borrower (a "Credit Request"), together with a duly executed Letter of Credit
Agreement, not later than 11:00 A.M., (Houston, Texas time) three Business Days
prior to the date set for the issuance of such Letter of Credit.  Each Credit
Request shall contain or specify, among other things:

                 (a)      the proposed date of the issuance of the Letter of
         Credit, which shall be a Business Day;

                 (b)      the stated amount of the Letter of Credit;

                 (c)      the date of expiration of the Letter of Credit;

                 (d)      the name and address of the beneficiary of the Letter
         of Credit;

                 (e)      the documents to be presented by the beneficiary of
         the Letter of Credit in case of any drawing thereunder;

                 (f)      the full text of any certificate to be presented by
         the beneficiary in case of any drawing thereunder;

                 (g)      the purpose of the Letter of Credit; and





                                      -25-
<PAGE>   27
                 (h)      the aggregate amount of Letter of Credit Liabilities
         (including the requested Letter of Credit) to be existing on the date
         of issuance of such requested Letter of Credit.

         Section 3.3.     Amendments to Letters of Credit.  Any request for
amendment to or extension of the expiry date of any previously issued Letter of
Credit shall be submitted pursuant to a Credit Request by the Borrower to the
Issuing Bank not later than three Business Days prior to the date of the
proposed amendment or extension.  The Issuing Bank shall not amend or extend
the expiry date of any Letter of Credit if the issuance of a new Letter of
Credit having the same terms and conditions as such Letter of Credit as so
amended or extended would be prohibited by any provision of this Agreement.

         Section 3.4.     Letter of Credit Fees.  The Borrower agrees in all
instances, to pay to the Issuing Bank a letter of credit fee for the account of
the Banks that is equal to the rate per annum set forth on schedule 1.1.A.
under "Rate For Letters of Credit" of the Dollar equivalent at the applicable
Exchange Rate of the face amount of each Letter of Credit (with a $400.00
minimum letter of credit fee per Letter of Credit issued), each computed from
the date of issuance until the stated expiry date based on the initial face
amount of such Letter of Credit, and payable in advance, non-refundable, and
based on a year of 360 days.

         Section 3.5.     Participation by Banks.  By the issuance of any
Letter of Credit and without any further action on the part of the Issuing Bank
or any of the Banks in respect thereof, the Issuing Bank hereby grants to each
Bank and each Bank hereby agrees to acquire from the Issuing Bank a
participation in each such Letter of Credit and the related Letter of Credit
Liabilities, effective upon the issuance thereof without recourse or warranty,
equal to such Bank's Percentage of such Letter of Credit and Letter of Credit
Liabilities.  The Issuing Bank shall provide a copy of each Letter of Credit to
each other Bank promptly after issuance.  This agreement to grant and acquire
participations is an agreement between the Issuing Bank and the Banks, and
neither the Borrower nor any beneficiary of a Letter of Credit shall be
entitled to rely thereon.  The Borrower agrees that each Bank purchasing a
participation from the Issuing Bank pursuant to this Section 3.5 may exercise
all its rights to payment against the Borrower including the right of setoff,
with respect to such participation as fully as if such Bank were the direct
creditor of the Borrower in the amount of such participation.

         Section 3.6.     Payments Constitute Advances.  Each payment by the
Issuing Bank pursuant to a drawing under a Letter of Credit shall constitute
and be deemed an Advance by each Bank in its Percentage of the aggregate
Revolving Credit Commitments to the Borrower under such Bank's Revolving Credit
Note and this Agreement as of the day and time such payment is made by the
Issuing Bank and





                                      -26-
<PAGE>   28
in the Dollar equivalent at the applicable Exchange Rate of the aggregate
amount of such payment.

         Section 3.7.     Obligations Absolute.  The obligations of the
Borrower under this Agreement and the other Loan Documents (including without
limitation the obligation of the Borrower to reimburse the Issuing Bank for
draws under any Letter of Credit) shall be joint and several, absolute,
unconditional, and irrevocable, and shall be performed strictly in accordance
with the terms of this Agreement and the other Loan Documents under all
circumstances whatsoever, including without limitation the following
circumstances:

                 (a)      Any lack of validity or enforceability of any Letter
         of Credit or any other Loan Document;

                 (b)      Any amendment or waiver of or any consent to
         departure from any Loan Document;

                 (c)      The existence of any claim, set-off, counterclaim,
         defense or other rights which Borrower, any Obligated Party, or any
         other Person may have at any time against any beneficiary of any
         Letter of Credit, the Issuing Bank, or any other Person, whether in
         connection with this Agreement or any other Loan Document or any
         unrelated transaction; or

                 (d)      Any statement, draft, or other document presented
         under any Letter of Credit proving to be forged, fraudulent, invalid,
         or insufficient in any respect or any statement therein being untrue
         or inaccurate in any respect whatsoever.

         Section 3.8.     Limitation of Liability.  The Borrower assumes all
risks of the acts or omissions of any beneficiary of any Letter of Credit with
respect to its use of such Letter of Credit.  Neither the Issuing Bank, the
Agent, any Bank nor any of their officers or directors shall have any
responsibility or liability to the Borrower or any other Person for: (a)
errors, omissions, interruptions, or delays in transmission or delivery of any
messages, or (b) the validity, sufficiency, or genuineness of any draft or
other document, or any endorsement(s) thereon, even if any such draft, document
or endorsement should in fact prove to be in any and all respects invalid,
insufficient, fraudulent, or forged or any statement therein is untrue or
inaccurate in any respect, provided that in each case such actions taken or
omitted by the Issuing Bank, the Agent or any Bank are done or omitted in the
absence of gross negligence or willful misconduct.  The Issuing Bank may accept
documents that appear on their face to be in order, without responsibility for
further investigation, regardless of any notice or information to the contrary.

         Section 3.9.     Letter of Credit Agreements.  Certain additional
provisions regarding the obligations, liabilities,





                                      -27-
<PAGE>   29
rights, remedies and agreements of the Borrower and the Issuing Bank relative
to the Letters of Credit shall be set forth in the Letter of Credit Agreements.

         Section 3.10.    Replacement of the Issuing Bank.  The Borrower may,
with the approval of the Required Banks, appoint a successor Issuing Bank
hereunder upon the condition precedent that such successor Issuing Bank shall
become a party to this Agreement and expressly agree to be bound by the terms
and conditions contained in this Agreement pertaining to the Issuing Bank.
Upon the appointment of a successor Issuing Bank, the Issuing Bank replaced by
such successor Issuing Bank shall cease to issue Letters of Credit but shall
continue to carry out its obligations hereunder and shall continue to have the
benefit of this Agreement and the other Loan Documents with respect to the
outstanding Letters of Credit issued by it until all such Letters of Credit
have expired and any drawings thereunder have been reimbursed in full.


                                  ARTICLE IV.

                 Borrowing Procedure; Payments; Facilities Fees

         Section 4.1.     Borrowing Procedure.  Borrower shall give the Agent
notice by means of an Advance Request Form of each requested Advance at least
one Business Day before the requested date of a Prime Rate Advance, and at least
three (3) days before the requested date of a LIBOR Advance, specifying: (a) the
requested date of such Advance (which shall be a Business Day), (b) the amount
of such Advance, (c) the Type of the Advance, and (d) in the case of a LIBOR
Advance, the duration of the Interest Period for such Advance.  The Agent at its
option may accept telephonic requests for Advances, provided that such
acceptance shall not constitute a waiver of the Agent's right to delivery of the
appropriate Advance Request Form in connection with subsequent Advances.  Any
telephonic request for an Advance by the Borrower shall be promptly continued by
submission of a properly completed Advance Request Form to the Agent.  Each
Advance shall be in a minimum principal amount of $500,000.00 or an integral
multiple thereof.  The Agent shall notify each Bank of the contents of each such
notice.  Not later than 11:00 A.M. Houston, Texas time on the date specified for
each Advance hereunder, each Bank will make available to the Agent at the
Principal Office in immediately available funds, for the account of the
Borrower, its Percentage of each Advance.  After the Agent's receipt of such
funds and subject to the other terms and conditions of this Agreement, the Agent
will make each Advance available to the Borrower by depositing the same, in
immediately available funds, in an account of the Borrower (designated by the
Borrower) maintained with the Agent at the Agent's Principal Office.  All
notices under this Section shall be irrevocable and shall be given not later
than 11:00 A.M. Houston,





                                      -28-
<PAGE>   30
Texas, time on the day which is not less than the number of Business Days
specified above for such notice.

         Section 4.2.     Method of Payment.  All payments of principal,
interest, and other amounts to be made by the Borrower under this Agreement and
the other Loan Documents shall be made to the Agent at its Principal Office for
the account of each Bank's Principal Office in Dollars and in immediately
available funds, without setoff, deduction, or counterclaim, not later than
11:00 A.M., Houston, Texas time on the date on which such payment shall become
due (each such payment made after such time on such due date to be deemed to
have been made on the next succeeding Business Day).  The Borrower shall, at
the time of making each such payment, specify to the Agent the sums payable by
the Borrower under this Agreement and the other Loan Documents to which such
payment is to be applied (and in the event that the Borrower fails to so
specify, or if an Event of Default has occurred and is continuing, the Agent
may apply such payment to the Obligations in such order and manner as it may
elect in its sole discretion, subject to Section 4.5 hereof).  Each payment
received by the Agent under this Agreement or any other Loan Document for the
account of a Bank shall be paid promptly to such Bank, in immediately available
funds, for the account of such Bank's Principal Office.  Whenever any payment
under this Agreement or any other Loan Document shall be stated to be due on a
day that is not a Business Day, such payment may be made on the next succeeding
Business Day, and such extension of time shall in such case be included in the
computation of the payment of interest and commitment fee, as the case may be.

         Section 4.3.     Voluntary Prepayment.  The Borrower may, prepay the
Advances in whole at any time or from time to time in part without premium or
penalty; provided that each partial prepayment shall be in the principal amount
of $500,000.00 or an integral multiple thereof and provided further that no
such prepayment shall relieve the Borrower of its obligations under Section 5.2
or 5.6 hereof.

         Section 4.4.     Mandatory Prepayment.  If at any time the sum of the
outstanding Advances plus the outstanding Letter of Credit Liabilities exceeds
the Borrowing Base, the Borrower shall promptly (and in any event within
fifteen (15) Business Days after the earlier of (a) the discovery of such
excess by the Borrower and (b) the delivery by the Borrower of the Borrowing
Base Report indicating such excess) prepay the outstanding Advances by the
amount of the excess plus accrued and unpaid interest on the amount so prepaid
or, if no Advances are outstanding (either before or after such prepayments),
the Borrower shall immediately pledge to the Agent for the benefit of itself,
the Issuing Bank, and the Banks, cash or cash equivalent investments in an
amount equal to the excess as security for the Obligations.





                                      -29-
<PAGE>   31
         Section 4.5.     Pro Rata Treatment.  Except to the extent otherwise
provided herein: (a) each Advance shall be made by the Banks under Section 2.1
or deemed made by the Banks under Section 3.6 pro rata in accordance with their
respective Percentages, (b) each payment of fees under Section 2.6 and letter
of credit fees under Section 3.4 shall be made for the account of the Banks pro
rata in accordance with their respective Percentages, (c) each termination or
reduction of the Revolving Credit Commitments under Section 2.7 shall be
applied to the Revolving Credit Commitments of the Banks, pro rata according to
the respective unused Revolving Credit Commitments, (d) each Letter of Credit
shall be deemed participated in by the Banks, pro rata in accordance with their
respective Percentages; and (e) each payment and prepayment of principal of or
interest on the Advances by the Borrower shall be made to the Agent for the
account of the Banks pro rata in accordance with the respective unpaid
principal amounts of such Advances held by such Banks.

         Section 4.6.     Non-Receipt of Funds by the Agent.  Unless the Agent
shall have been notified by a Bank or the Borrower (the "Payor") prior to the
date on which such Bank is to make payment to the Agent of the proceeds of an
Advance to be made or participated in as applicable, by it hereunder or the
Borrower is to make a payment to the Agent for the account of one or more of
the Banks, as the case may be (such payment being herein called the "Required
Payment"), which notice shall be effective upon receipt, that the Payor does
not intend to make the Required Payment to the Agent, the Agent may assume that
the Required Payment has been made and may, in reliance upon such assumption
(but shall not be required to), make the amount thereof available to the
intended recipient on such date and, if the Payor has not in fact made the
Required Payment to the Agent, the recipient of such payment shall, on demand,
pay to the Agent the amount made available to it together with interest thereon
in respect of the period commencing on the date such amount was so made
available by the Agent until the date the Agent recovers such amount at a rate
per annum equal to the Federal Funds Rate for such period.

         Section 4.7.     Withholding Tax Exemption.  Each Bank that is not
incorporated under the laws of the United States of America or a state thereof
agrees that it will deliver to the Borrower and the Agent two duly completed
copies of Form 1001 or 4224, certifying in either case that such Bank is
entitled to receive payments from the Borrower under any Loan Document without
deduction or withholding of any United States federal income taxes.  Each Bank
which so delivers a Form 1001 or 4224 further undertakes to deliver to the
Borrower and the Agent two additional copies of such form (or a successor form)
on or before the date such form expires or becomes obsolete or after the
occurrence of any event requiring a change in the most recent form so delivered
by it, and such amendments thereto or extensions or renewals thereof as may be
reasonably requested by the Borrower or the Agent, in each case certifying





                                      -30-
<PAGE>   32
that such Bank is entitled to receive payments from the Borrower under any Loan
Document without deduction or withholding of any United States federal income
taxes, unless an event (including without limitation any change in treaty, law
or regulation) has occurred prior to the date on which any such delivery would
otherwise be required which renders all such forms inapplicable or which would
prevent such Bank from duly completing and delivering any such form with
respect to it and such Bank advises the Borrower and the Agent that it is not
capable of receiving such payments without any deduction or withholding of
United States federal income tax.

         Section 4.8.     Computation of Interest.  Interest on the Advances
and all other amounts payable by the Borrower hereunder shall be computed on
the basis of a year of 360 days and the actual number of days elapsed
(including the first day but excluding the last day) unless such calculation
would result in a usurious rate, in which case interest shall be calculated on
the basis of a year of 365 or 366 days, as the case may be.

         Section 4.9.     Conversions and Continuation.  The Borrower shall
have the right from time to time to Convert all or part of an Advance of one
Type into an Advance of another Type or to Continue Eurodollar Advances of one
Type as Advances of the same Type by giving the Agent written notice at least
one (1) Business Day before Conversion into a Prime Rate Advance, and at least
three (3) Business Days before Conversion into or Continuation of a LIBOR
Advance, specifying: (a) the Conversion or Continuation date, (b) the amount of
the Advance to be Converted or Continued, (c) in the case of Conversions, the
Type of Advance to be Converted into, and (d) in the case of a Continuation of
or Conversion into a LIBOR Advance, the duration of the Interest Period
applicable thereto; provided that (i) LIBOR Advances may only be Converted on
the last day of the applicable Interest Period, and (ii) except for Conversions
into Prime Rate Advances, no Conversions shall be made while a Default or an
Event of Default has occurred and is continuing.  All notices under this
Section shall be irrevocable and shall be given not later than 11:00 A.M.
Houston, Texas time on the day which is not less than the number of Business
Days specified above for such notice.  If the Borrower shall fail to give the
Agent the notice as specified above for Continuation or Conversion of a LIBOR
Advance prior to the end of the Interest Period with respect thereto, such
LIBOR Advance shall be Converted automatically into a Prime Rate Advance on the
last day of the then current Interest Period for such LIBOR Advance.

         Section 4.10.    Limitation on Guarantors, Liability for the
Obligations.  Notwithstanding any provision of this Agreement or any other Loan
Documents to the contrary, no Guarantor shall be liable for any Obligations in
excess of the sum of (a) the Secured Obligations plus (b) Permitted Subsidiary
Indebtedness.





                                      -31-
<PAGE>   33
         Section 4.11.    Application of Payments.  If an  Event of Default has
occurred, all principal payments shall first be applied to that principal
portion of the Obligations that does not constitute Secured Obligations, but
neither the Agent nor any Bank shall be required to keep any separate records
in respect thereof, and this agreement regarding application shall apply
automatically.


                                   ARTICLE V.

                        Yield Protection and Illegality

         Section 5.1.     Capital Adequacy.  If after the date hereof, any
adoption or implementation of any applicable law, rule, or regulation regarding
capital adequacy (including, without limitation, any law, rule, or regulation
implementing the Basle Accord), or any change therein, or any change in the
interpretation or administration thereof by any central bank or other
Governmental Authority charged with the interpretation or administration
thereof, or compliance by such Bank (or its parent) with any guideline,
request, or directive regarding capital adequacy (whether or not having the
force of law) of any such central bank or other Governmental Authority
(including, without limitation, any guideline or other requirement implementing
the Basle Accord), has or would have the effect of reducing the rate of return
on such Bank's (or its parent's) capital as a consequence of its obligations
hereunder or the transactions contemplated hereby to a level below that which
such Bank (or its parent) could have achieved but for such adoption,
implementation, change, or compliance (taking into consideration such Bank's
policies with respect to capital adequacy) by an amount deemed by such Bank to
be material, then from time to time, within ten (10) Business Days after demand
by the such Bank (with a copy to the Agent), the Borrower agrees to pay to such
Bank (or its parent) such additional amount or amounts as will compensate such
Bank for such reduction.  Any such demand shall be accompanied by a certificate
of such Bank claiming compensation under this Section and setting forth in
reasonable detail the calculation of the additional amount or amounts to be
paid to it hereunder shall be conclusive (absent manifest error), provided that
the determination thereof is made on a reasonable basis.  In determining such
amount or amounts, such Bank may use any reasonable averaging and attribution
methods.

         Section 5.2.     Additional Costs.  The Borrower shall pay (without
duplication of amounts owing under other Sections of this Article V) directly
to each Bank from time to time such amounts as such Bank may determine to be
necessary to compensate it for any costs incurred by such Bank which the Bank
determines are attributable to its making or maintaining of any LIBOR Advances
hereunder or its obligation to make any of such Advances hereunder, or any
reduction in any amount receivable by such Bank hereunder in respect of any
such Advances or such obligation (such increases in





                                      -32-
<PAGE>   34
costs and reductions in amounts receivable being herein called "Additional
Costs"), resulting from any Regulatory Change which:

                 (a)       changes the basis of taxation of any amounts payable
         to such Bank under this Agreement or its Revolving Credit Note in
         respect of any of such Advances (other than taxes imposed on the
         overall net income of such Bank or its Applicable Lending Office for
         any of such Advances by the jurisdiction in which such Bank has its
         principal office or such Applicable Lending Office);

                 (b)       imposes or modifies any reserve, special deposit,
         minimum capital, capital ratio, or similar requirement relating to any
         extensions of credit or other assets of, or any deposits with or other
         liabilities or commitments of, the Bank (including any of such
         Advances or any deposits referred to in the definition of "LIBOR Rate"
         in Section 1.1; or

                 (c)       imposes any other condition affecting this Agreement
         or the Revolving Credit Notes or any of such extensions of credit or
         liabilities or commitments.

Each Bank will notify the Borrower of any event occurring after the date of
this Agreement which will entitle such Bank to compensation pursuant to this
Section 5.2 as promptly as practicable after it obtains knowledge thereof and
determines to request such compensation, and will designate a different
Applicable Lending Office for the Advances affected by such event if such
designation will avoid the need for, or reduce the amount of, such compensation
and will not, in the sole opinion of such Bank, violate any law, rule, or
regulation or be in any way disadvantageous to such Bank, provided that such
Bank shall have no obligation to so designate an Applicable Lending Office
located in the United States of America.  Each Bank will furnish the Borrower
with a certificate setting forth in reasonable detail the basis and the amount
of each request of such Bank for compensation under this Section 5.2, and the
Borrower shall not be obligated to pay under this Section 5.2 prior to receipt
of such certificate.  If a Bank requests compensation from the Borrower under
this Section 5.2, the Borrower may, by notice to such Bank and the Agent
suspend the obligation of such Bank to make or Continue making, or Convert
Advances into, Advances of the Type with respect to which such compensation is
requested until the Regulatory Change giving rise to such request ceases to be
in effect (in which case the provisions of Section 5.5 hereof shall be
applicable).  Determinations and allocations by a Bank for purposes of this
Section 5.2 of the effect of any Regulatory Change on its costs of maintaining
its obligations to make Advances or of making or maintaining Advances or on
amounts receivable by it in respect of Advances, and of the additional amounts
required to compensate such Bank in respect of any Additional Costs, shall be
conclusive absent manifest error, provided that such determinations and
allocations are made on a reasonable basis and in good faith.





                                      -33-
<PAGE>   35
         Section 5.3.     Limitation on LIBOR Advances.  Anything herein to the
contrary notwithstanding, if with respect to any LIBOR Advances for any
Interest Period therefor:

                 (a)      The Agent determines (which determination shall be
         conclusive absent manifest error) that quotations of interest rates
         for the relevant deposits referred to in the definition of "LIBOR
         Rate" in Section 1.1 hereto are not being provided in the relative
         amounts or for the relative maturities for purposes of determining the
         rate of interest for such Advances as provided in this Agreement; or

                 (b)      A Bank determines (which determination shall be
         conclusive absent manifest error) that the relevant rates of interest
         referred to in the definition of "LIBOR Rate" in Section 1.1 hereto on
         the basis of which the rate of interest for such Advances for such
         Interest Period is to be determined do not accurately reflect the cost
         to such Bank of making or maintaining such Advances for such Interest
         Period;

then such Bank shall give the Borrower prompt notice thereof and the relevant
amounts or periods, and so long as such condition remains in effect, such Bank
shall be under no obligation to make additional LIBOR Advances or to Convert
Prime Rate Advances into LIBOR Advances and the Borrower shall, on the last
day(s) of the then current Interest Period(s) for the outstanding LIBOR
Advances, either prepay such Advances or Convert such Advances into Prime Rate
Advances in accordance with the terms of this Agreement.

         Section 5.4.     Illegality.  Notwithstanding any other provision of
this Agreement, in the event that it becomes unlawful for a Bank or its
Applicable Lending Office to (a) honor its obligation to make LIBOR Advances
hereunder or (b) maintain LIBOR Advances hereunder, then such Bank shall
promptly notify the Borrower thereof and such Bank's obligation to make or
maintain LIBOR Advances and to Convert Prime Rate Advances into LIBOR Advances
hereunder shall be suspended until such time as such Bank may again make and
maintain LIBOR Advances (in which case the provisions of Section 5.5 hereof
shall be applicable).

         Section 5.5.     Treatment of Certain LIBOR Advances.  If the LIBOR
Advances of a Bank are to be Converted pursuant to Section 5.2, 5.3 or 5.4
hereof, such Bank's LIBOR Advances shall be automatically Converted into Prime
Rate Advances on the last day(s) of the then current Interest Period(s) for the
LIBOR Advances (or, in the case of a Conversion required by Section 5.4 hereof,
on such earlier date as such Bank may specify to the Borrower, such earlier
date to be not earlier than the date the Bank gives notice thereof to the
Borrower) and, unless and until such Bank gives notice as provided below that
the circumstances specified in Section 5.2, 5.3 or 5.4 hereof which gave rise
to such Conversion no longer exist:





                                      -34-
<PAGE>   36
                 (a)      To the extent that the Bank's LIBOR Advances have
         been so Converted, all payments and prepayments of principal which
         would otherwise be applied to such Bank's LIBOR Advances shall be
         applied instead to its Prime Rate Advances; and

                 (b)      All Advances which would otherwise be made or
         Continued by a Bank as LIBOR Advances shall be made as or Converted
         into Prime Rate Advances and all Advances of such Bank which would
         otherwise be Converted into LIBOR Advances shall be Converted instead
         into (or shall remain as) Prime Rate Advances.

If a Bank gives notice to the Borrower that the circumstances specified in
Section 5.2, 5.3 or 5.4 hereof which gave rise to the Conversion of such Bank's
LIBOR Advances pursuant to this Section 5.5 no longer exist (which such Bank
agrees to do promptly upon such circumstances ceasing to exist) at a time when
any LIBOR Advances are outstanding, the Bank's Prime Rate Advances shall be
automatically Converted to LIBOR Advances, on the first day(s) of the next
succeeding Interest Period(s) for such outstanding LIBOR Advances to the extent
necessary so that, after giving effect thereto, all Advances held by the Bank
holding LIBOR Advances and by such Banks are held pro rata (as to principal
amounts, Types, and Interest Periods) in accordance with their respective
Commitments.

         Section 5.6.     Compensation.  The Borrower shall pay (without
duplication of amounts owing under other Sections of this Article V) to the
Banks, upon the request of the Agent, such amount or amounts as shall be
sufficient (in the reasonable opinion of the Agent) to compensate the Banks for
any actual loss, cost, or expense incurred by them as a result of:

                 (a)      Any payment, prepayment or Conversion of a LIBOR
         Advance for any reason (including, without limitation, the
         acceleration of the outstanding Advances pursuant to Section 12.2) on
         a date other than the last day of an Interest Period for such Advance;
         or

                 (b)      Any failure by the Borrower for any reason
         (including, without limitation, the failure of any conditions
         precedent specified in Article VII to be satisfied) to borrow,
         Convert, or prepay a LIBOR Advance on the date for such borrowing,
         Conversion, or prepayment, specified in the relevant notice of
         borrowing, prepayment, or Conversion under this Agreement.

The Agent shall furnish the Borrower with a certificate setting forth in
reasonable detail the basis and amount of each request for compensation under
this Section 5.6, and the Borrower shall not be obligated to pay under this
Section 5.6 prior to receipt of such certificate.





                                      -35-
<PAGE>   37

                                  ARTICLE VI.

                                    Security

         Section 6.1.     Collateral.  To secure full and complete payment and
performance of the Secured Obligations, the Borrower shall execute and deliver
or cause to be executed and delivered the documents described below covering
the property and collateral described in this Section 6.1 each in form and
substance satisfactory to the Agent, (which, together with any other property
and collateral which may now or hereafter secure the Secured Obligations or any
part thereof, is sometimes herein called the "Collateral"):

                 (a)      The Borrower and the Guarantors shall respectively
         execute the Security Agreement-Borrower and the Security
         Agreements-Guarantors pursuant to which such Persons shall, subject to
         the provisions of Section 6.3, grant to the Agent for the benefit of
         the Banks a first priority security interest in all of their
         respective domestic, and as applicable, foreign, trade accounts and
         accounts receivable whether now owned or hereafter acquired, and all
         products and proceeds thereto.

                 (b)      The Borrower and the Guarantors shall execute and
         cause to be executed, subject to the provisions of Section 6.3, such
         further documents and instruments, including without limitation, as
         applicable, financing statements under the Uniform Commercial Code and
         the laws of the applicable Provinces of Canada, as the Agent, in its
         sole discretion, deems necessary or desirable to create, preserve,
         evidence, and perfect its liens and security interests in the
         Collateral.

         Section 6.2.     Setoff.  If an Event of Default shall have occurred
and is continuing, the Agent, the Issuing Bank and each Bank are hereby
authorized at any time and from time to time, without notice to Borrower (any
such notice being hereby expressly waived by the Borrower), to set off and
apply any and all deposits (general, time or demand, provisional or final) at
any time held and other indebtedness at any time owing by the Issuing Bank, the
Agent or such Bank to or for the credit or the account of the Borrower against
any and all of the obligations of the Borrower now or hereafter existing under
this Agreement, the Revolving Credit Notes, or any other Loan Document,
irrespective of whether or not the Agent, the Issuing Bank or such Bank shall
have made any demand under this Agreement, the Revolving Credit Notes or any
other Loan Document and although such Obligations may be unmatured.  The
Issuing Bank, the Agent and each Bank agree promptly to notify the Borrower
(with a copy to the Agent) after any such setoff and application, provided that
the failure to give such notice shall





                                      -36-
<PAGE>   38
not affect the validity of such setoff and application.  The rights and
remedies of the Issuing Bank, the Agent and each Bank hereunder are in addition
to other rights and remedies (including, without limitation, other rights of
setoff) which the Issuing Bank, the Agent and such Bank may have.

         SECTION 6.3.     SPECIAL PROVISIONS REGARDING SECURITY INTERESTS AND
SECURITY AGREEMENTS.  NOTWITHSTANDING ANY PROVISION OF THIS AGREEMENT OR ANY
OTHER LOAN DOCUMENT TO THE CONTRARY, (a) THE LIENS CREATED BY THE SECURITY
AGREEMENT- BORROWER AND THE SECURITY AGREEMENTS-GUARANTORS SHALL NOT COVER OR
APPLY TO ANY OBLIGATIONS WHICH ARE NOT SECURED OBLIGATIONS, (b) THE LIENS
CREATED BY THE SECURITY AGREEMENT-BORROWER AND THE SECURITY
AGREEMENTS-GUARANTORS SHALL NOT BECOME EFFECTIVE UNLESS AND UNTIL AN EVENT OF
DEFAULT OCCURS; HOWEVER, UPON THE OCCURRENCE OF AN EVENT OF DEFAULT, THE LIENS
CREATED BY THE SECURITY AGREEMENT-BORROWER AND THE SECURITY
AGREEMENTS-GUARANTORS SHALL IMMEDIATELY AND AUTOMATICALLY BECOME EFFECTIVE
WITHOUT ANY FURTHER ACT OF ANY KIND BY THE AGENT OR ANY BANK AND WITHOUT NOTICE
TO OR CONSENT FROM THE BORROWER, ANY GUARANTOR OR ANY OTHER PERSON, AND (c) THE
AGENT SHALL NOT FILE OR RECORD ANY FINANCING STATEMENTS OR OTHER DOCUMENTS
EVIDENCING THE LIENS CREATED BY THE SECURITY AGREEMENT-BORROWER OR THE SECURITY
AGREEMENTS-GUARANTORS UNLESS AND UNTIL AN EVENT OF DEFAULT HAS OCCURRED; HOWEVER
UPON THE OCCURRENCE OF AN EVENT OF DEFAULT, THE AGENT MAY FILE OR RECORD ALL
SUCH DOCUMENTS WITHOUT NOTICE TO OR CONSENT FROM THE BORROWER, ANY GUARANTOR OR
ANY OTHER PERSON.


                                  ARTICLE VII.

                              Conditions Precedent

         Section 7.1.     Initial Advance.  This Agreement is not effective,
and the obligation of each Bank to make any initial Advance and of the Issuing
Bank to issue any Letter of Credit is subject to the condition precedent that
the Agent shall have received (or waived or postponed in writing the
requirement that it receive) on or before the day of such Advance or Letter of
Credit issuance all of the items set forth below in form and substance
satisfactory to the Agent.

                 (a)      Resolutions.  Resolutions of the Board of Directors
         of the Borrower, each corporate Guarantor and the general partners of
         the Partnership, certified by a Secretary or an Assistant Secretary of
         such Person which authorize the execution, delivery, and performance
         by such Person, as applicable, of this Agreement and the other Loan
         Documents to which such Person is or is to be a party.





                                      -37-
<PAGE>   39
                 (b)      Incumbency Certificates.  A certificate of incumbency
         certified by the Secretary or an Assistant Secretary (or a director in
         the case of Geophysical Limited) of the Borrower, each corporate
         Guarantor, and the general partners of the Partnership certifying the
         names of the officers of such Person authorized to sign, as
         applicable, this Agreement and each of the other Loan Documents to
         which such Person is or is to be a party (including the certificates
         contemplated herein) together with specimen signatures of such
         officers.

                 (c)      Articles of Incorporation.  The articles of
         incorporation of Borrower, each corporate Guarantor, and the general
         partners of the Partnership certified by the Secretary of State of
         state of incorporation or, as applicable, the appropriate governmental
         official of any foreign jurisdiction of organization, of such Person.

                 (d)      Bylaws, Etc.  The bylaws or, as applicable, other
         similar organizational document of the Borrower, each corporate
         Guarantor, and the general partners of the Partnership, certified by
         the Secretary or an Assistant Secretary of such Person.

                 (e)      Governmental Certificates.  Certificates of the
         appropriate government officials of the state of incorporation or, as
         applicable, foreign jurisdiction of organization, of the Borrower,
         each corporate Guarantor and the general partners of the Partnership
         as to the existence and account status of such Person.

                 (f)      Partnership Agreement, Etc.  The partnership
         agreement of the Partnership certified by all of the partners of the
         Partnership.

                 (g)      Revolving Credit Notes.  The Revolving Credit Notes
         executed by the Borrower.

                 (h)      Security Agreement-Borrower.  The Security
         Agreement-Borrower executed by Borrower.

                 (i)      Security Agreements-Guarantors.  A Security
         Agreement-Guarantor executed, as applicable, by each of the
         Guarantors.

                 (j)      Financing Statements.  Uniform Commercial Code or
         other applicable financing statements executed by the Borrower and the
         Guarantors and covering the Collateral.

                 (k)      Guaranty Agreements.  A Guaranty Agreement executed
         by each Guarantor.





                                      -38-
<PAGE>   40
                 (l)      UCC and Other Searches.  The results of a Uniform
         Commercial Code or other applicable search showing all financing
         statements and other documents or instruments on file against Borrower
         and any of the Canadian or domestically organized or incorporated
         Guarantors in the offices of the Secretary of State of the States of
         Texas, Delaware, and Mississippi and the Province of Alberta, Canada as
         applicable.

                 (m)      Foreign Searches.  The results of a company registry
         search for Geophysical Limited in England and Wales and Digicon
         (Malaysia) in the Federation of Malaysia.

                 (n)      Opinion of Counsel.  A favorable opinion of Porter &
         Hedges, legal counsel to the Borrower and the Guarantors in such form
         as the Agent may request.

         Section 7.2.     All Advances.  The obligation of each Bank to make
any Advance and of the Issuing Bank to issue any Letter of Credit is subject to
the additional conditions precedent set forth below.

                 (a)      Items Required by Agreement.  The Agent shall have
         received the items required by Section 3.2 and 4.1, as applicable.

                 (b)      No Default.  No Default shall have occurred and be
         continuing, or would result from such Advance and/or Letter of Credit
         issuance, as applicable.

                 (c)      Representations and Warranties.  All of the
         representations and warranties contained in Article VIII hereof and in
         the other Loan Documents shall be true and correct on and as of the
         date of such Advance and/or Letter of Credit issuance, as applicable
         with the same force and effect as if such representations and
         warranties had been made on and as of such date.

                 (d)      Additional Documentation.  The Agent shall have
         received such additional approvals, opinions, or documents as the
         Agent or its legal counsel may request.


                                 ARTICLE VIII.

                         Representations and Warranties

         To induce the Agent, the Issuing Bank and the Banks to enter into this
Agreement, the Borrower represents and warrants to each such Person that:

         Section 8.1.     Corporate Existence.  The Borrower and each
Subsidiary (a) is a corporation or partnership duly organized,





                                      -39-
<PAGE>   41
 validly existing, and in good standing under the laws of the jurisdiction of
its incorporation or organization; (b) has all requisite corporate and
partnership, as applicable, power and authority to own its assets and carry on
its business as now being or as proposed to be conducted; and (c) is qualified
to do business in all jurisdictions in which the nature of its business makes
such qualification necessary and where failure to so qualify would have a
material adverse effect on its business, condition (financial or otherwise),
operations, prospects, or properties.  The Borrower and each Guarantor has the
corporate or partnership, as applicable, power and authority to execute,
deliver and perform its obligations under this Agreement and the other Loan
Documents to which it is or may become a party.

         Section 8.2.     Financial Statements.  The Borrower has delivered to
the Agent audited consolidated financial statements of the Borrower and its
Subsidiaries as at and for the fiscal year ended July 31, 1997 and unaudited
consolidated financial statements of the Borrower and its Subsidiaries for the
period ended April 30, 1998.  Such financial statements are true and correct,
have been prepared in accordance with GAAP, and fairly and accurately present,
on a consolidated basis, the financial condition of the Borrower and its
Subsidiaries as of the respective dates indicated therein and the results of
operations for the respective periods indicated therein.  Neither the Borrower
nor any of its Subsidiaries has any material contingent liabilities,
liabilities for taxes, unusual forward or long-term commitments, or unrealized
or anticipated losses from any unfavorable commitments except as referred to or
reflected on such financial statements.  There has been no material adverse
change in the business, condition (financial or otherwise), operations,
prospects, or properties of the Borrower or any of its Subsidiaries since the
effective date of the most recent financial statements referred to in this
Section.

         Section 8.3.     Corporate Action: No Breach.  The execution,
delivery, and performance by the Borrower of this Agreement and the other Loan
Documents to which the Borrower is or may become a party and compliance with
the terms and provisions hereof and thereof have been duly authorized by all
requisite corporate action on the part of the Borrower and do not and will not
(a) violate or conflict with, or result in a breach of, or require any consent
under (i) the articles of incorporation or bylaws or other organizational
documents of the Borrower or any of its Subsidiaries, (ii) any applicable law,
rule, or regulation or any order, writ, injunction, or decree of any
Governmental Authority or arbitrator, or (iii) any agreement or instrument to
which the Borrower or any of its Subsidiaries is a party or by which any of
them or any of their property is bound or subject, or (b) constitute a default
under any such agreement or instrument, or result in the creation or imposition
of any Lien (except as provided in Article VI) upon any of the revenues or
assets of the Borrower or any Subsidiary.





                                      -40-
<PAGE>   42
         Section 8.4.     Operation of Business.  The Borrower and each of its
Subsidiaries possess all licenses, permits, franchises, patents, copyrights,
trademarks, and tradenames, or rights thereto, necessary to conduct their
respective businesses substantially as now conducted and as presently proposed
to be conducted, and the Borrower and each of its Subsidiaries are not in
violation of any valid rights of others with respect to any of the foregoing in
any respect that could reasonably be expected to have a Material Adverse
Effect.

         Section 8.5.     Litigation and Judgments.  Except as disclosed on
Schedule 8.5 hereto, there is no action, suit, investigation, or proceeding
before or by any Governmental Authority or arbitrator pending (in respect of
which process has been served on Borrower or any of its Subsidiaries), or to
the knowledge of the Borrower, threatened against or affecting the Borrower or
any Subsidiary, that would, if adversely determined, have a Material Adverse
Effect.  There are no outstanding judgments against the Borrower or any
Subsidiary.

         Section 8.6.     Rights in Properties: Liens.  The Borrower and each
Subsidiary have good and indefeasible title to or valid leasehold interests in
all material respects in their respective properties and assets, real and
personal, including the properties, assets and leasehold interests reflected in
the financial statements described in Section 8.2, and none of the properties,
assets or leasehold interests of the Borrower or any Subsidiary is subject to
any Lien, except as permitted by Section 10.2.

         Section 8.7.     Enforceability.  This Agreement constitutes, and the
other Loan Documents to which the Borrower is party, when delivered, and
subject to Section 6.3, shall constitute legal, valid, and binding obligations
of the Borrower, enforceable against the Borrower in accordance with their
respective terms, except as limited by bankruptcy, insolvency, or other laws of
general application relating to the enforcement of creditors' rights and by
general equitable principles.

         Section 8.8.     Approvals.  No authorization, approval, or consent
of, and no filing or registration with, any Governmental Authority or third
party is or will be necessary for the execution, delivery, or performance by
the Borrower of this Agreement and the other Loan Documents to which the
Borrower is or may become a party or the validity or enforceability thereof,
except for (a) and subject to Section 6.3, filings and recordings in respect of
the Liens created pursuant to Loan Documents, (b) those which have been
obtained or made prior to the date hereof, and (c) authorizations, approvals,
consents, filings and registrations to be made in the ordinary course of
business in connection with the Borrower's performance of its obligations
hereunder.





                                      -41-
<PAGE>   43
         Section 8.9.     Debt.  The Borrower and its Subsidiaries have no
Debt, except as disclosed on Schedule 8.9 hereto.

         Section 8.10.    Taxes.  The Borrower and each Subsidiary have filed
all tax returns (federal, state, local and foreign) required to be filed,
including all income, franchise, employment, property, and sales tax returns,
and have paid all of their respective liabilities for taxes, assessments,
governmental charges and other levies that are due and payable.  The Borrower
knows of no pending investigation of the Borrower or any Subsidiary by any
taxing authority or of any pending but unassessed tax liability of the Borrower
or any Subsidiary.

         Section 8.11.    Use of Proceeds: Margin Securities.  Neither the
Borrower nor any Subsidiary is engaged principally, or as one of its important
activities, in the business of extending credit for the purpose of purchasing
or carrying margin stock (within the meaning of Regulations G, T, U, or X of
the Board of Governors of the Federal Reserve System), and no part of the
proceeds of any Advance will be used to purchase or carry any margin stock or
to extend credit to others for the purpose of purchasing or carrying margin
stock.

         Section 8.12.    ERISA.  The Borrower and each Subsidiary are in
compliance in all material respects with all applicable provisions of ERISA and
the applicable provisions of the Code relating thereto.  No Reportable Event
which is required to be reported to the PBGC pursuant to Section 4043(b) of
ERISA or Prohibited Transaction which could reasonably be expected to have a
Material Adverse Effect has occurred and is continuing with respect to any
Plan.  No notice of intent to terminate a Plan has been filed, nor has any Plan
been terminated.  No circumstances exist which constitute grounds entitling the
PBGC to institute proceedings to terminate, or appoint a trustee to administer,
a Plan, nor has the PBGC instituted any such proceedings.  Neither the Borrower
nor any ERISA Affiliate (nor any predecessor to the Borrower or any ERISA
Affiliate) has completely or partially withdrawn from a Multiemployer Plan.
The Borrower and each ERISA Affiliate have met their minimum funding
requirements under ERISA with respect to all of their Plans, and the present
value of all vested benefits under each Plan do not exceed the fair market
value of all Plan assets allocable to such benefits, as determined on the most
recent valuation date of the Plan and in accordance with ERISA.  Neither the
Borrower nor any ERISA Affiliate has incurred any liability to the PBGC under
ERISA.

         Section 8.13.    Disclosure.  No statement, information, report,
representation, or warranty made by the Borrower in this Agreement or in any
other Loan Document or furnished to the Agent or any Bank in connection with
this Agreement or any of the transactions contemplated hereby (but excluding
all projections and proforma financial statements which shall have been
prepared in good faith





                                      -42-
<PAGE>   44
and based upon reasonable assumptions) contains any untrue statement of a
material fact and all such statements, information, reports, representations
and warranties, taken as a whole, do not omit to state any material fact
necessary to make the statements herein or therein not misleading.  There is no
fact known to the Borrower which has a Material Adverse Effect, or which could
reasonably be expected to have, in the reasonable judgment of the Borrower, in
the future a Material Adverse Effect, that has not been disclosed in writing to
the Agent.

         Section 8.14.    Subsidiaries.  The Borrower has no Subsidiaries other
than those listed on Schedule 8.14 hereto, and Schedule 8.14 sets forth the
jurisdiction of organization or incorporation of each Subsidiary and the
percentage of the Borrower and its Subsidiaries ownership of the outstanding
voting stock of each such Subsidiary.  All of the outstanding capital stock of
each Subsidiary has been validly issued, is fully paid, and is nonassessable.

         Section 8.15.    Agreements; Indenture Defaults.  (a)  Neither the
Borrower nor any Guarantor is a party to any indenture, loan, or credit
agreement, or to any lease or other agreement or instrument, or subject to any
charter or corporate restriction which could reasonably be expected to have a
Material Adverse Effect.  Neither the Borrower nor any Guarantor is in default
in any respect in the performance, observance, or fulfillment of any of the
obligations, covenants, or conditions contained in any agreement or instrument
material to its business to which it is a party where such default or the
effect thereof could reasonably be expected to result in a Material Adverse
Effect.

         (b)     Neither the making of any Advance nor the issuance of any
Letter of Credit will constitute or result in the creation of a Default or an
Event of Default (as defined in the Indenture) under the terms and provisions
of the Indenture.  No Default or Event of Default (as defined in the Indenture)
exists under the terms and provisions of the Indenture.

         Section 8.16.    Compliance with Laws.  Neither the Borrower nor any
Subsidiary is in violation of any law, rule, regulation, order, or decree of
any Governmental Authority or arbitrator except where such Person's failure to
do so could not reasonably be expected to result in a Material Adverse Effect.

         Section 8.17.    Inventory.  All inventory that is produced by the
Borrower and its Subsidiaries has been and will hereafter be produced in
compliance with all applicable laws, rules, regulations, and governmental
standards, domestic and foreign, including, without limitation, the minimum
wage and overtime provisions of the Fair Labor Standards Act, as amended (29
U.S.C. Sections  201-219), and the regulations promulgated thereunder except





                                      -43-
<PAGE>   45
 where such Person's failure to do so could not reasonably be expected to
result in a Material Adverse Effect.

         Section 8.18.    Investment Company Act.  Neither the Borrower nor any
Subsidiary is an "investment company" within the meaning of the Investment
Company Act of 1940, as amended.

         Section 8.19.    Public Utility Holding Company Act.  Neither the
Borrower nor any Subsidiary is a "holding company" or a "subsidiary company" of
a "holding company" or an "affiliate" of a "holding company" or a "public
utility" within the meaning of the Public Utility Holding Company Act of 1935,
as amended.

         Section 8.20.    Environmental Matters.  Except as disclosed on
Schedule 8.20 hereto:

                 (a)      The Borrower, each Subsidiary, and all of their
         respective properties, assets, and operations are in full compliance
         with all Environmental Laws, except for occurrences of noncompliance
         which could not individually, or in the aggregate, reasonably be
         expected to have a Material Adverse Effect.  The Borrower is not aware
         of, nor has the Borrower received notice of, any past, present, or
         future conditions, events, activities, practices, or incidents which
         may interfere with or prevent the compliance or continued compliance
         of the Borrower and its Subsidiaries with all Environmental Laws,
         except for occurrences of noncompliance which could not individually,
         or in the aggregate, reasonably be expected to have a Material Adverse
         Effect;

                 (b)      The Borrower and each Subsidiary have obtained all
         permits, licenses, and authorizations that are required under
         applicable Environmental Laws, and all such permits are in good
         standing and the Borrower and its Subsidiaries are in compliance with
         all of the terms and conditions of such permits, except where failure
         to obtain or comply with such permits, licenses or authorizations
         could not, individually or in the aggregate, reasonably be expected to
         have a Material Adverse Effect;

                 (c)      No Hazardous Materials exist on, about, or within or
         have been used, generated, stored, transported, disposed of on, or
         Released from any of the properties or assets of the Borrower or any
         Subsidiary except (i) in amounts that, individually or in the
         aggregate, could not reasonably be expected to have a Material Adverse
         Effect and (ii) for dynamite and other explosives for which such
         Person possesses all licenses and permits necessary to comply with all
         Environmental Laws and other federal, state, local and foreign laws,
         regulations and requirements pertaining to the use, possession,
         disposal, storage or sale thereof, and such use, possession, disposal,
         storage or sale thereof is in compliance





                                      -44-
<PAGE>   46
         with Environmental Laws and such other laws, regulations and
         requirements except where failure to obtain or comply with such
         licenses or permits or to comply with such laws, regulations or
         requirements could not, individually or in the aggregate, reasonably be
         expected to have a Material Adverse Effect. The use which the Borrower
         and its Subsidiaries make and intend to make of their respective
         properties and assets will not result in the use, generation, storage,
         transportation, accumulation, disposal, or Release of any Hazardous
         Material on, in, or from any of their properties or assets except (i)
         in amounts that, individually or in the aggregate, could not reasonably
         be expected to have a Material Adverse Effect and (ii) for dynamite and
         other explosives for which such Person possesses all licenses and
         permits necessary to comply with all Environmental Laws and other
         federal, state, local and foreign laws, regulations and requirements
         pertaining to the use, possession, disposal, storage or sale thereof,
         and such use, possession, disposal, storage or sale thereof is in
         compliance with Environmental Laws and such other laws, regulations and
         requirements, except where failure to comply with such laws,
         regulations or requirements could not, individually or in the he
         aggregate reasonably be expected to have a Materially Adverse Effect;

                 (d)      Neither the Borrower nor any of its Subsidiaries nor
         any of their respective currently or previously owned or leased
         properties or operations is subject to any outstanding or, to the best
         of its knowledge, threatened order from or agreement with any
         Governmental Authority or other Person or subject to any judicial or
         docketed administrative proceeding with respect to (i) failure to
         comply with Environmental Laws, (ii) Remedial Action, or (iii) any
         Environmental Liabilities arising from a Release or threatened
         Release, which, individually or in the aggregate, could reasonably be
         expected to have a Material Adverse Effect;

                 (e)      There are no conditions or circumstances associated
         with the currently or previously owned or leased properties or
         operations of the Borrower or any of its Subsidiaries that could
         reasonably be expected to have a Material Adverse Effect;

                 (f)      Neither the Borrower nor any of its Subsidiaries is a
         treatment, storage, or disposal facility requiting a permit under the
         Resource Conservation and Recovery Act, 42 U.S.C. Section  6901 et
         seq., regulations thereunder or any comparable provision of state law.
         The Borrower and its Subsidiaries are in compliance with all
         applicable financial responsibility requirements of all Environmental
         Laws except where failure to be in such compliance could not
         reasonably be expected to have a Material Adverse Effect;





                                      -45-
<PAGE>   47
                 (g)      Neither the Borrower nor any of its Subsidiaries has
         filed or failed to file any notice required under applicable
         Environmental Law reporting a Release, which Release or any
         aggregation thereof, or failure to file, could reasonably be expected
         to have a Material Adverse Effect; and

                 (h)      To the best of the Borrower's knowledge, no Lien
         arising under any Environmental Law has attached to any property or
         revenues of the Borrower or its Subsidiaries.

         Section 8.21.    Year 2000.  (a) All devices, systems, machinery,
information technology, computer software and hardware, and other date
sensitive technology (jointly and severally, the "Systems") necessary for the
Borrower and its Subsidiaries to carry on their business as presently conducted
and as contemplated to be conducted in the future are Year 2000 Compliant or
will be Year 2000 Compliant within a period of time calculated to result in no
material disruption of any of the Borrower's or any Subsidiary's business
operations.  For purposes of these provisions, "Year 2000 Compliant" means that
the Systems are designed to be used prior to, during and after the Gregorian
calendar year 2000 A.D. and will operate during each such time period without
error relating to date data, specifically including any error relating to, or
the product of, date data which represents or references different centuries or
more that one century.

         (b)  The Borrower has (i) undertaken a detailed inventory, review and
assessment of all areas within its and its Subsidiaries' businesses and
operations that could be adversely affected by the failure of the Borrower or
any Subsidiary to be Year 2000 Compliant on a timely basis, (ii) developed a
detailed plan and time line for becoming Year 2000 Compliant on a timely basis
and (iii) to date, implemented that plan in accordance with that timetable in
all material respects.

         (c)  The Borrower has made, and has caused each Subsidiary to make,
written inquiry of each of its key suppliers, vendors and customers, and has
obtained, and has caused each Subsidiary to obtain, in writing confirmations
from all such Persons as to whether such Persons have initiated programs to
become Year 2000 Compliant.  On the basis of such confirmations, the Borrower
reasonably believes that all of such Persons will be or become so compliant.
For purposes hereof, "key suppliers, vendors and customers" refers to those
suppliers, vendors and customers of the Borrower and its Subsidiaries whose
business failure would, with reasonable probability, result in a Material
Adverse Effect.

         Section 8.22.    Guarantors.  The assets of the Subsidiaries who are
not Guarantors as of the Effective Date have a value (determined in accordance
with GAAP) of less than $20,000,000.00.





                                      -46-
<PAGE>   48
                                  ARTICLE IX.

                             Affirmative Covenants

         The Borrower covenants and agrees that, as long as the Obligations or
any part thereof are outstanding or any Bank has any Commitment hereunder or
the Issuing Bank has any obligation to issue any Letter of Credit hereunder or
any Letter of Credit Liabilities exist, the Borrower will perform and observe
the following positive covenants:

         Section 9.1.     Reporting Requirements.  The Borrower will furnish
the items set forth below to the Agent, the Issuing Bank and the Banks.

                 (a)      Annual Financial Statements.  As soon as available,
         and in any event within one hundred twenty (120) days after the end of
         each fiscal year of the Borrower, beginning with the fiscal year
         ending July 31, 1998, a copy of the annual audit report of the
         Borrower and its Subsidiaries for such fiscal year containing, on a
         consolidated basis, balance sheets and statements of operations, cash
         flow and changes in stockholders equity as at the end of such fiscal
         year and for the 12-month period then ended, in each case setting
         forth in comparative form the figures for the preceding fiscal year,
         all in reasonable detail and audited by, and accompanied by the report
         of, Price Waterhouse L.L.P., or other independent certified public
         accountants of recognized standing acceptable to the Agent, to the
         effect that such report has been prepared in accordance with GAAP.

                 (b)      Quarterly 10-Q of the Borrower.  As soon as
         available, and in any event within thirty (30) days after the filing
         deadline therefor, a copy of the Form 10-Q Quarterly Reports of the
         Borrower filed with the Securities and Exchange Commission or any
         successor agency.

                 (c)      Compliance Certificate.  Concurrently with the
         delivery of each of the financial statements or Form 10-Q's, as
         applicable, referred to in subsections 9.1(a) and 9.1(b), a Compliance
         Certificate of the chief financial officer, the chief accounting
         officer or the treasurer of the Borrower (i) stating, among other
         things, that no Default or Event of Default has occurred and is
         continuing, or if a Default or Event of Default has occurred and is
         continuing, a statement as to the nature thereof and the action which
         is proposed to be taken with respect thereto, and (ii) showing in
         reasonable detail the calculations demonstrating compliance with
         Article XI.

                 (d)      Annual Projected Financial Statements and Capital
         Expenditure Projections.  Concurrently with the delivery of





                                      -47-
<PAGE>   49
         the financial statements referred to in subsection 9.1(a) above,
         projected financial statements for the upcoming fiscal year of the
         Borrower and its Subsidiaries, including projected capital
         expenditures, in form and detail satisfactory to the Agent and
         prepared under the supervision of the chief financial officer or the
         chief accounting officer of the Borrower.

                 (e)      Monthly Borrowing Base Report/Agings.  Upon the
         request of the Agent or if at the end of any month there are
         outstanding Advances or Letter of Credit Liabilities, as soon as
         available, and in any event within forty-five (45) days after the end
         of such month, a Borrowing Base Report in form and detail satisfactory
         to the Agent, including, without limitation, (i) a reconciliation of
         accounts receivable including a calculation and description of all
         accounts which are not or should not be included in the definition of
         "Eligible Domestic/Domestic Accounts," "Eligible Domestic/Foreign
         Accounts" or "Eligible Foreign/Foreign Accounts" and (ii) detailed
         agings of accounts receivable and accounts payable, all certified by
         the chief financial officer, the chief accounting officer or the
         treasurer of the Borrower.

                 (f)      Monthly Receivables Agings.  (i) Upon the request of
         the Agent, or (ii) if at the end of any month there are outstanding
         Advances, as soon as available, and in any event within forty five
         (45) days after the end of such month, or, (iii) in any event within
         forty-five (45) days after the end of each Fiscal Quarter, a detailed
         aging of accounts receivable and accounts payable certified by the
         chief financial officer, the chief accounting officer or the treasurer
         of the Borrower.

                 (g)      Address List for Account Debtors.  Within fifteen
         (15) days after the request therefor by the Agent, an address list for
         all of the Borrower's and the Guarantors' account debtors in form and
         detail satisfactory to the Agent.

                 (h)      Management Letters.  Promptly upon receipt thereof, a
         copy of any management letter or written report submitted to the
         Borrower by independent certified public accountants with respect to
         the business, condition (financial or otherwise), operations,
         prospects, or properties of the Borrower and its Subsidiaries.

                 (i)      Additional Restricted Subsidiaries.  Not less than
         forty-five (45) days after the end of each Fiscal Quarter the names of
         any Subsidiaries which became Restricted Subsidiaries during such
         Fiscal Quarter and any Subsidiaries which ceased to be Restricted
         Subsidiaries during such Fiscal Quarter.





                                      -48-
<PAGE>   50
                 (j)      Notice of Litigation.  Promptly after the service of
         process or notice thereof, notice of all actions, suits, and
         proceedings before any Governmental Authority or arbitrator affecting
         the Borrower or any Subsidiary which could, in the opinion of the
         management of the Borrower, reasonably be expected to have a Material
         Adverse Effect.

                 (k)      Notice of Default.  As soon as possible and in any
         event within fifteen (15) days after any of the chief executive
         officer, the chief financial officer, the chief accounting officer,
         the treasurer or any other employee serving in a comparable capacity
         (regardless of title) of the Borrower or any Guarantor obtains any
         knowledge, becomes aware or should have known through the exercise of
         prudent business judgment of the occurrence of any Default, a written
         notice setting forth the details of such Default and the action that
         the Borrower has taken and proposes to take with respect thereto.

                 (l)      ERISA Reports.  Upon the request of the Agent from
         time to time copies of all reports, including annual reports, and
         notices which the Borrower or any Subsidiary files with or receives
         from the PBGC, the U.S. Department of Labor under ERISA or the
         Internal Revenue Service under the Code; and as soon as possible and
         in any event within five days after the Borrower or any Subsidiary
         knows or has reason to know that any Reportable Event which is
         required to be reported to the PBGC pursuant to Section 4043 (b) of
         ERISA or Prohibited Transaction which could be reasonably expected to
         have a Material Adverse Effect has occurred with respect to any Plan
         or that the PBGC or the Borrower or any Subsidiary has instituted or
         will institute proceedings under Title IV of ERISA to terminate any
         Plan, a certificate of the chief financial officer of the Borrower
         setting forth the details as to such Reportable Event or Prohibited
         Transaction or Plan termination and the action that the Borrower
         proposes to take with respect thereto.

                 (m)      Notice of Material Adverse Change.  As soon as
         possible and in any event within fifteen (15) days after any of the
         chief executive officer, the chief financial officer, the chief
         accounting officer, the treasurer or any other employee serving in a
         comparable capacity (regardless of title) of the Borrower or any
         Guarantor obtains any knowledge, becomes aware or should have known
         through the exercise of prudent business judgment of the occurrence
         thereof, written notice of any matter that could reasonably be
         expected to have a Material Adverse Effect.

                 (n)      Proxy Statements, Etc.  As soon as available, one
         copy of each financial statement, report, notice or proxy statement
         sent by the Borrower or any Subsidiary to its





                                      -49-
<PAGE>   51
         stockholders generally and one copy of each regular, periodic or
         special report, registration statement, or prospectus, including,
         without limitation, each Form 10-K Annual Report and each 8-K Current
         Report, filed by the Borrower or any Subsidiary with the Securities
         and Exchange Commission or any successor agency or with any securities
         exchange.

                 (o)      Notice of Actual or Contingent Liabilities.  As soon
         as possible, and in any event within five (5) Business Days after any
         of the chief executive officer, the chief financial officer, the chief
         accounting officer, the treasurer or any other employee serving in a
         comparable capacity (regardless of title) of the Borrower or any
         Guarantor obtains any knowledge, becomes aware or should have known
         through the exercise of prudent business judgment of the occurrence
         thereof, written notice of any actual or contingent liabilities which,
         if resolved adversely to such Person could reasonably be expected to
         have a Material Adverse Effect.

                 (p)      General Information.  Within such a time period as
         Agent may reasonably request, such additional information and
         statements, lists of assets and liabilities, tax returns, financial
         statements, reporting statements and any other reports with respect to
         the Borrower's or any Subsidiary's financial condition, business
         operations and properties as the Agent may reasonably request from
         time to time.

         Section 9.2.     Maintenance of Existence: Conduct of Business.
Except as provided in Section 10.3, the Borrower will preserve and maintain,
and will cause each Guarantor to preserve and maintain, its corporate existence
and all of its leases, privileges, licenses, permits, franchises,
qualifications, and rights that are necessary or desirable in the ordinary
conduct of its business, except if (a) in the reasonable business judgment of
the Borrower or such Guarantor, as applicable, it is in the best economic
interest not to preserve and maintain such rights and franchises, and (b) such
failure to preserve and maintain such leases, privileges, licenses, permits,
franchises, qualifications and rights could not reasonably be expected to have
a Material Adverse Effect.  The Borrower will conduct, and will cause each
Subsidiary to conduct, its businesses in an orderly and efficient manner in
accordance with good business practices.

         Section 9.3.     Maintenance of Properties.  The Borrower will
maintain, keep, and preserve, and cause each Subsidiary to maintain, keep, and
preserve, in all material respects, all of its properties (tangible and
intangible) necessary in the proper conduct of its business in good working
order and condition.

         Section 9.4.     Taxes and Claims.  The Borrower will pay or
discharge, and will cause each Subsidiary to pay or discharge, at or before
maturity or before becoming delinquent all taxes, levies,





                                      -50-
<PAGE>   52
assessments, and governmental charges imposed on it or its income or profits or
any of its property; provided, however, that neither the Borrower nor any
Subsidiary shall be required to pay or discharge any tax, levy, assessment, or
governmental charge which is being contested in good faith by appropriate
proceedings diligently pursued, and for which adequate reserves have been
established.

         Section 9.5.     Insurance.  The Borrower will maintain, and will
cause each Subsidiary to maintain, insurance with financially sound and
reputable insurance companies in such amounts and covering such risks as is
usually carried by corporations engaged in similar businesses and owning
similar properties in the same general areas in which the Borrower and its
Subsidiaries operate, provided that in any event each Borrower will maintain
and will cause each Subsidiary to maintain workmen's compensation insurance,
property insurance, comprehensive general liability insurance, and business
interruption insurance with respect to processing centers in accordance with
Borrower's and such Subsidiaries' current practices reasonably satisfactory to
the Agent.

         Section 9.6.     Inspection Rights.  At any reasonable time during
business hours and from time to time, the Borrower will permit, and will cause
each Subsidiary to permit, representatives of the Agent, the Banks and the
Issuing Bank to examine, copy, and make extracts from its books and records, to
visit and inspect its properties, and to discuss its business, operations, and
financial condition with its officers, employees, and independent certified
public accountants.

         Section 9.7.     Keeping Books and Records.  The Borrower will
maintain, and will cause each Subsidiary to maintain, proper books of record
and account in which full, true, and correct entries in conformity with GAAP
shall be made of all dealings and transactions in relation to its business and
activities.

         Section 9.8.     Compliance with Laws.  The Borrower will comply, and
will cause each Subsidiary to comply with all applicable laws, rules,
regulations, orders, and decrees of any Governmental Authority or arbitrator if
its failure to comply could reasonably be expected to result in a Material
Adverse Effect.

         Section 9.9.     Compliance with Agreements.  The Borrower will
comply, and will cause each Subsidiary to comply with all agreements,
contracts, and instruments binding on it or affecting its properties or
business if its failure to comply could reasonably be expected to result in a
Material Adverse Effect.

         Section 9.10.    Further Assurances.  The Borrower will, and will
cause each Subsidiary to, execute and deliver such further agreements and
instruments and take such further action as may be requested by the Agent or
any Bank to carry out the provisions and





                                      -51-
<PAGE>   53
purposes of this Agreement and the other Loan Documents and, when applicable as
provided in Section 6.3, to create, preserve, and perfect the Liens of the
Agent in the Collateral.

         Section 9.11.    ERISA.  The Borrower will comply, and will cause each
Subsidiary to comply, with all minimum funding requirements, and all other
material requirements of ERISA and the applicable provisions of the Code
relating thereto, if applicable, so as not to give rise to any liability
thereunder if its failure to comply could reasonably be expected to result in a
Material Adverse Effect.

         Section 9.12.    Contracts.  (a)  The Borrower shall disclose to the
Agent in writing any express rights of offset arising under geophysical or
seismic service contracts of the Borrower or any of the Guarantors and under
amendments, modifications, addenda, or supplements thereto.

         (b)     The Borrower shall disclose to the Agent each geophysical or
seismic service contract to which the Borrower or any Guarantor shall hereafter
become a party, and each amendment, supplement, addendum, or modification
hereafter made to any existing geophysical or seismic service contract, that
contains an express provision that restricts such Person from freely assigning
its rights to payment under such contract.

         (c)     To the extent practicable, the Borrower will use reasonable
efforts to select, and shall cause each Guarantor to use reasonable efforts to
select, as the choice of law to govern future geophysical or seismic service
contracts to which such Person is a party, the law of a state of the United
States, a province of Canada, England, or a foreign jurisdiction that permits
free transferability of the rights to payment under such contracts.

         (d)     Within fifteen (15) days after the request by the Agent the
Borrower shall provide the Agent with true and complete copies of all existing
geophysical and seismic service contracts to which the Borrower or any
Guarantor is a party and that provide for aggregate consideration payable to
such Person in excess of $1,000,000.00, and all future amendments, supplements,
addenda, or modifications to any such existing or future geophysical or seismic
service contract.

         Section 9.13.    Additional Material Subsidiaries as Guarantors;
Execution of Additional Security Agreements- Guarantors.  The Borrower will
cause each Material Subsidiary created or acquired after the Effective Date to
execute a Guaranty Agreement and deliver such Guaranty Agreement to the Agent.
If any Subsidiary which was not determined to be a Material Subsidiary on the
Effective Date or upon its creation or acquisition becomes a Material
Subsidiary, the Borrower will promptly give the Agent notice of such event and
will cause such Material Subsidiary to





                                      -52-
<PAGE>   54
execute and deliver a Guaranty Agreement to the Agent, unless the Required
Banks determine that such Material Subsidiary is not to be a Guarantor.
Promptly upon the creation or acquisition of any Material Subsidiary after the
Effective Date or the determination after the Effective Date that a Subsidiary
has become a Material Subsidiary, such Material Subsidiary will execute and
deliver to the Agent (a) a Security Agreement-Guarantor pursuant to which such
Material Subsidiary will grant to the Agent a security interest in its accounts
receivable, and (b) uniform commercial code or other applicable financing
statements with respect to such security interest; provided, that the grant of
such security interests, the Security Agreements-Guarantors, financing
statements all other documents or acts related thereto shall be subject to the
provisions of Sections 4.10 and 6.3.

         Section 9.14.    Continuity of Operations.  The Borrower will continue
to conduct, and will cause each of the Guarantors to continue to conduct, its
primary businesses as conducted as of the Effective Date and to continue its
operations in such businesses.

         Section 9.14.    Year 2000.  The Borrower will (a) furnish such
additional information, statements and other reports with respect to the
Borrower's and its Subsidiaries' activities, course of action and progress
towards becoming Year 2000 Compliant as the Agent may request from time to
time, (b) promptly notify the Agent of any change in circumstances that causes
or would likely cause the Borrower's representations contained in Section 8.21
to no longer be true and the details thereof, and (c) permit the Agent or its
representatives, at the expense of the Agent, upon reasonable notice during
business hours, to inspect and test the Systems of the Borrower and its
Subsidiaries to determine if they are Year 2000 Compliant.


                                   ARTICLE X.

                               Negative Covenants

         The Borrower covenants and agrees that, as long as the Obligations or
any part thereof are outstanding or any Bank has any Commitment hereunder or
the Issuing Bank has any obligation to issue any Letter of Credit hereunder or
any Letter of Credit Liabilities exist, the Borrower will observe the following
covenants:

         Section 10.1.    Debt.  The Borrower will not incur, create, assume,
or permit to exist, and will not permit any Subsidiary to incur, create,
assume, or permit to exist, any Debt, except:

                 (a)      Debt and Contingent Liabilities to the Agent, the
         Banks and the Issuing Bank pursuant to the Loan Documents;





                                      -53-
<PAGE>   55
                 (b)      the Senior Debt;

                 (c)      Existing Debt and Contingent Liabilities described on
         Schedule 8.9 hereto;

                 (d)      Extensions, renewals, amendments or replacements of
         Debt permitted by clauses (b), (c) and (d) above provided that no such
         extension, renewal or replacement shall (i) if such Debt is
         Subordinated Debt, amend or modify any subordination provisions, if
         any, contained in the original Debt so that the Debt, as extended,
         renewed or replaced, is no longer Subordinated Debt, or (ii) shorten
         the fixed maturity or increase the principal amount of, or increase
         the rate of interest to a rate greater than the current market rate at
         the time of the extension, renewal or replacement of the original
         Debt;

                 (e)      Subordinated Debt;

                 (f)      Additional unsecured and purchase money Debt and
         secured Debt assumed in connection with a transaction permitted by
         Section 10.3(c)(iv)(A) in an aggregate principal amount not to exceed
         $50,000,000.00 at any time outstanding;

                 (g)      Unsecured Debt of the Borrower or any Subsidiary
         which represents all or part of the purchase price payable in
         connection with transactions permitted by Section 10.3(c)(iv)(A),
         provided, that the sum of the aggregate principal amount of all such
         unsecured Debt plus cash expended by such Person in connection with
         transactions permitted by Section 10.3(c)(iv)(A) shall not at any time
         exceed $100,000,000; and

                 (h)      Debt of the Borrower to a Guarantor or of a Guarantor
         to the Borrower or another Guarantor, as applicable.

         Section 10.2.    Limitation on Liens.  Borrower will not incur,
create, assume, or permit to exist, and will not permit any Subsidiary to
incur, create, assume, or permit to exist, any Lien upon any of their
respective properties, assets, or revenues, whether now owned or hereafter
acquired, except the following (herein referred to as "Permitted Liens"):

                 (a)      Liens disclosed on Schedule 10.2 hereto;

                 (b)      Liens in favor of the Agent for the benefit of the
         Banks and the Issuing Bank;

                 (c)      Encumbrances consisting of minor easements, zoning
         restrictions, or other restrictions on the use of property that do not
         (individually or in the aggregate) materially affect the value of the
         assets encumbered thereby or





                                      -54-
<PAGE>   56
         materially impair the ability of the Borrower or its Subsidiaries to
         use such assets in their respective businesses, and none of which is
         violated in any material respect by existing or proposed structures or
         land use;

                 (d)      Liens for taxes, assessments, or other governmental
         charges which are not delinquent for longer than ninety (90) days or
         which are being contested in good faith and for which adequate
         reserves have been established;

                 (e)      Liens of landlords, tenants, vendors, mechanics,
         materialmen, warehousemen, carriers, or other similar statutory Liens
         securing obligations that are not delinquent for longer than ninety
         (90) days and are incurred in the ordinary course of business or which
         are being contested in good faith and for which adequate reserves have
         been established;

                 (f)      Liens resulting from good faith deposits to secure
         payments of workmen's compensation or other social security programs
         or to secure the performance of tenders, statutory obligations, surety
         and appeal bonds, bids, or contracts (other than for payment of Debt),
         or leases made in the ordinary course of business;

                 (g)      Liens on property securing purchase money Debt or
         assumed Debt permitted pursuant to Section 10.1(f) incurred solely for
         the purpose of financing the acquisition of such property; and

                 (h)      Licenses of surveys or portions thereof in the Data
         Library to others in the ordinary course of business.

         Section 10.3.    Mergers, Dissolutions, Etc.  The Borrower will not,
and will not permit any Subsidiary to, be a party to any merger or
consolidation, or purchase or otherwise acquire all or substantially all of the
assets or any stock of any class of, or any partnership or joint venture
interest in, any other Person, or sell, transfer, convey or lease all or any
substantial part of its assets, or sell or assign with or without recourse any
receivables, except for the following:

                 (a)      any such merger or consolidation, sale, transfer,
         conveyance, lease or assignment of or by any Affiliate of Borrower
         into the Borrower or into, with or to any other Affiliate of Borrower;
         provided that (i) if such event involves the Borrower, the Borrower
         shall be the surviving corporation, and (ii) if such event involves a
         Guarantor, a Guarantor shall be the surviving corporation;

                 (b)      any such purchase or other acquisition by the
         Borrower of the assets or stock of any Guarantor or any





                                      -55-
<PAGE>   57
         Affiliate of Borrower, or by any Guarantor or any Affiliate of
         Borrower of the assets or stock of any Affiliate of Borrower; and

                 (c)      any such merger or consolidation of Borrower or an
         Affiliate of Borrower into, with or to any other Person or any such
         purchase or other acquisition by the Borrower or any Affiliate of
         Borrower of the assets or stock of any other Person where (i)
         immediately before and immediately after giving effect to such
         transaction, no Default or Event of Default shall have occurred and be
         continuing; (ii) the Borrower and its Subsidiaries are in pro forma
         compliance with all the financial covenants set forth in Article XI
         taking into account such purchase or acquisition; (iii) such Person
         (or its board of directors or similar body) has approved such
         acquisition or other purchase; and (iv) taking into account and
         including all such transactions since the Effective Date, (A) the
         aggregate consideration to be paid in cash or Funded Debt incurred (or
         assumed) by Borrower and its Subsidiaries in connection with such
         purchase or acquisition is not greater than $100,000,000.00 and (B)
         the aggregate consideration to be paid by the Borrower and its
         Subsidiaries in the form of stock or other securities issued by the
         Borrower in connection with such purchase or other acquisition is not
         greater than $200,000,000.00.

         Section 10.4.    Loans and Investments.  The Borrower will not make,
and will not permit any Subsidiary to make, any advance, loan, extension of
credit, or capital contribution to or investment in, or purchase, or permit any
Subsidiary to purchase, any stock, bonds, notes, debentures or other securities
of, any Person, except:

                 (a)      advances or loans to, or investments in, Subsidiaries
         (other than the Borrower and the Guarantors) not to exceed
         $5,000,000.00 in the aggregate at any time outstanding (net of
         repayments of advances and loans by such Subsidiaries taken as a group
         and of returns on such investments);

                 (b)      the non-cash allocation of overhead by the Borrower
         to its various Subsidiaries in accordance with its historical
         practices;

                 (c)      investments in and loans and advances by the Borrower
         or one Guarantor to the Borrower or another Guarantor, as applicable;

                 (d)      extensions of credit to customers in the ordinary
         course of business;





                                      -56-
<PAGE>   58
                 (e)      stocks, bonds, notes, debentures and other securities
         accepted from customers in connection with good faith workouts of past
         due receivables or in bankruptcy, insolvency or similar proceedings;

                 (f)      loans and advances to employees of the Borrower or
         any Subsidiary for travel, entertainment and relocation expenses
         incurred in the ordinary course of business;

                 (g)      any bonds or other obligations of the United States
         of America which, as to principal and interest, constitute direct
         obligations or are guaranteed by the United States of America;

                 (h)      any bonds, debentures, participation certificates,
         notes or other obligations of any agency or corporation or
         instrumentality of the United States of America, the obligations of
         which are unconditionally guaranteed by the United States of America;

                 (i)      obligations of a state, territory or possession of
         the United States, the interest on which is excluded from gross income
         for federal income taxation purposes and which bear a rating in one of
         the two highest rating categories by Standard & Poor's Corporation or
         Moody's Investors Service;

                 (j)      interest bearing accounts, interest bearing deposits,
         eurodollar investments, or certificates of deposit issued by or
         bankers acceptances drawn or accepted by, banks or trust companies,
         including the Agent, organized under the laws of the United States or
         any state thereof, but only with institutions whose capital and
         surplus is in excess of $50,000,000.00;

                 (k)      commercial paper, floating rate notes or master notes
         rated A-2 or better by Standard & Poor's Corporation or P-2 or better
         by Moody's Investors Service;

                 (l)      repurchase agreements collateralized by obligations
         issued or guaranteed as to the payment of principal and interest by
         the full faith and credit of the United States;

                 (m)      units of taxable money market mutual funds comprised
         of obligations described in (g) through (l) above;

                 (n)      the making or acquisition of beneficial interests in,
         or the making of loans, advances or capital contributions to, one or
         more joint ventures as to which the Borrower or any Subsidiary is a
         venturer, so long as such joint ventures are formed for the purpose of
         operating seismic data acquisition or processing businesses, in an
         aggregate principal amount not to exceed $50,000,000.00 at any time
         outstanding;





                                      -57-
<PAGE>   59
                 (o)      loans, advances, extensions of credit, capital
         contributions to or investments in, or purchases of stocks, bonds,
         notes, debentures, or other securities in an aggregate principal
         amount not to exceed $5,000,000.00 at any time outstanding; and

                 (p)      purchases of up to 1,250,000.00 shares of stock of
         Borrower.

         Section 10.5.    Transactions With Affiliates.  The Borrower will not
enter into, and will not permit any Guarantor to enter into, any transaction,
including, without limitation, the purchase, sale, or exchange of property or
the rendering of any service, with any Affiliate of the Borrower or any
Guarantor, except in the ordinary course of and pursuant to the reasonable
requirements of the Borrower's or such Guarantor's business and upon fair and
reasonable terms no less favorable to the Borrower or such Guarantor's than
would be obtained in a comparable arm's-length transaction with a Person not an
Affiliate of the Borrower or such Guarantor; provided that the foregoing shall
not prohibit the Borrower or the Guarantors from entering into management
contracts with Affiliates upon fair and reasonable terms in the ordinary course
of business or from entering into transactions permitted by this Agreement.

         Section 10.6.    Disposition of Assets.  The Borrower will not sell,
lease, assign, transfer, or otherwise dispose of any of its assets, nor permit
any Subsidiary to do so with any of its assets, except (a) licensing of surveys
in the Data Library in the ordinary course of business, (b) dispositions of
inventory in the ordinary course of business, and, (c) dispositions of tangible
personal property of the Borrower and the Subsidiaries made in the best
business judgment of the Borrower, if (i) no Event of Default has occurred and
is continuing and (ii) no Event of Default would arise as a result of any such
disposition.

         Section 10.7.    Sale and Leaseback.  The Borrower will not enter
into, and will not permit any Guarantor to enter into, any arrangement with any
Person pursuant to which any of them leases from such Person real or personal
property that has been or is to be sold or transferred, directly or indirectly,
by any of them to such Person, except that the Borrower and the Guarantors may
enter into such arrangements as financing techniques affecting assets acquired
after the date hereof to the extent permitted by Section 10.1 hereof.

         Section 10.8.    Nature of Business.  The Borrower will not, and will
not permit any Guarantor to, engage in any business other than the businesses
in which they are engaged as of the date hereof and other businesses reasonably
related thereto.





                                      -58-
<PAGE>   60
         Section 10.9.    Environmental Protection.  If, as a result thereof, a
Material Adverse Effect could be reasonably be expected to result therefrom,
the Borrower will not, and will not permit any Subsidiary to, (a) use (or
permit any tenant to use) any of their respective properties or assets for the
handling, processing, storage, transportation, or disposal of any Hazardous
Material except in compliance with Environmental Law, (b) generate any
Hazardous Material except in compliance with Environmental Law, (c) conduct any
activity that is likely to cause a Release or threatened Release of any
Hazardous Material, or (d) otherwise conduct any activity or use any of their
respective properties or assets in any manner that is likely to violate any
Environmental Law or create any Environmental Liabilities for which the
Borrower or any of its Subsidiaries would be responsible.

         Section 10.10.   Accounting.  The Borrower will not, and will not
permit any of its Subsidiaries to, change its fiscal year or make any change
(a) in accounting treatment or reporting practices, except as permitted by
GAAP, or (b) in tax reporting treatment, except as permitted by law.

         Section 10.11.   Contracts.  The Borrower will not and will not permit
any Guarantor to, assign the rights to payment under a geophysical or seismic
service contract to any Person, other than to the Agent.


                                  ARTICLE XI.

                              Financial Covenants

         The Borrower covenants and agrees that, as long as the Obligations or
any part thereof are outstanding or any Bank has any Commitment hereunder or
the Issuing Bank has any obligation to issue Letters of Credit hereunder or any
Letter of Credit Liabilities exist, the Borrower will observe and perform the
following financial covenants:

         Section 11.1.    Consolidated Tangible Net Worth.  The Borrower will
at all times maintain Consolidated Tangible Net Worth in an amount which is not
less than the sum of (a) eighty percent (80%) of Consolidated Tangible Net
Worth as of July 31, 1998, plus (b) fifty percent (50%) of Consolidated Net
Income during the period beginning on the Effective Date and ending on the date
on which such calculation is made, plus (c) one hundred percent (100%) of the
sum of (i) the net proceeds of any equity issued by the Borrower or any of its
Subsidiaries (on a consolidated basis) after the Effective Date and (ii) equity
contributed to the Borrower or any of its Subsidiaries (on a consolidated
basis) after the Effective Date in connection with the purchase or other
acquisition by the Borrower or any Subsidiary of the assets or stock of any
other Person.  Consolidated Tangible Net Worth shall be calculated





                                      -59-
<PAGE>   61
and tested quarterly as of the last day of each Fiscal Quarter, commencing with
the Fiscal Quarter ending July 31, 1998.

         Section 11.2.    Fixed Charge Coverage Ratio.  The Borrower and its
Subsidiaries will at all times maintain, on a consolidated basis, a Fixed
Charge Coverage Ratio of not less than 1.20 to 1.00.  The Fixed Charge Coverage
Ratio shall be calculated and tested quarterly as of the last day of each
Fiscal Quarter for the Calculation Period ending on the last day of such Fiscal
Quarter.

         Section 11.3.    Funded Debt to Capitalization Ratio.  The Borrower
and its Subsidiaries will at all times maintain, on a consolidated basis, a
Funded Debt to Capitalization Ratio of not greater than 0.40 to 1.00.  The
Funded Debt to Capitalization Ratio shall be calculated and tested quarterly as
of the last day of each Fiscal Quarter.

         Section 11.4.    Current Ratio.  The Borrower and its Subsidiaries
will at all times maintain a Current Ratio of not less than 1.50 to 1.00.  The
Current Ratio shall be calculated and tested quarterly as of the last day of
each Fiscal Quarter.

         Section 11.5.    Funded Debt to EBITDA Ratio.  The Borrower and its
Subsidiaries will at all times maintain, on a consolidated basis, a Funded Debt
to EBITDA Ratio of not greater than 1.65 to 1.00.  The Funded Debt to EBITDA
Ratio shall be calculated and tested quarterly as of the last day of each
Fiscal Quarter for the Calculation Period ending on the last day of such Fiscal
Quarter.


                                  ARTICLE XII.

                                    Default

         Section 12.1.    Events of Default.  Each of the following shall be
deemed an "Event of Default":

                 (a)      The Borrower shall fail to pay (i) any interest or
         principal portion of the Obligations when due or (ii) any other
         portion of the Obligations within five (5) days after notice from the
         Agent or any Bank.

                 (b)      Any representation or warranty made or deemed made by
         the Borrower or any Obligated Party (or any of their respective
         officers) in any Loan Document or in any certificate, report, notice,
         or financial statement furnished at any time in connection with this
         Agreement shall be false, misleading, or erroneous in any material
         respect when made or deemed to have been made.

                 (c)      The Borrower or any Obligated Party shall fail to
         perform, observe, or comply with any covenant, agreement, or





                                      -60-
<PAGE>   62
         term contained in Section 9.1(i), Article X or Article XI of this
         Agreement.

                 (d)      The Borrower or any Obligated Party shall fail to
         perform, observe, or comply with any covenant, agreement, or term
         contained in this Agreement (other than the covenants, agreements and
         terms the subject of Sections 12.1(a) or 12.1(c) above) or any other
         Loan Document and such failure shall continue unremedied for a period
         ended on the earlier to occur of (i) 15 days after notice from the
         Agent or any Bank and (ii) the chief executive officer, the chief
         financial officer, the chief accounting officer, the treasurer or any
         other employee serving in a comparable capacity (regardless of title)
         of the Borrower or any Guarantor obtains knowledge thereof.

                 (e)      The Borrower or any Obligated Party shall commence a
         voluntary proceeding seeking liquidation, reorganization, or other
         relief with respect to itself or its debts under any bankruptcy,
         insolvency, or other similar law now or hereafter in effect or seeking
         the appointment of a trustee, receiver, liquidator, custodian, or
         other similar official of it or a substantial part of its property or
         shall consent to any such relief or to the appointment of or taking
         possession by any such official in an involuntary case or other
         proceeding commenced against it or shall make a general assignment for
         the benefit of creditors or shall generally fail to pay its debts as
         they become due or shall take any corporate action to authorize any of
         the foregoing.

                 (f)      An involuntary proceeding shall be commenced against
         the Borrower or any Obligated Party seeking liquidation,
         reorganization, or other relief with respect to it or its debts under
         any bankruptcy, insolvency, or other similar law now or hereafter in
         effect or seeking the appointment of a trustee, receiver, liquidator,
         custodian, or other similar official for it or a substantial part of
         its property, and such involuntary proceeding shall remain undismissed
         and unstayed for a period of sixty (60) days.

                 (g)      The Borrower or any Obligated Party Shall fail to
         discharge within a period of thirty (30) days after the commencement
         thereof any attachment, sequestration, or similar proceeding or
         proceedings involving an aggregate amount in excess of $1,000,000.00
         against any of its assets or properties.

                 (h)      A final judgment or judgments for the payment of
         money in excess of $1,000,000.00 in the aggregate shall be rendered by
         a court or courts against the Borrower, any of its Subsidiaries, or
         any Obligated Party and the same shall not be discharged (or provision
         shall not be made for such





                                      -61-
<PAGE>   63
         discharge), or a stay of execution thereof shall not be procured,
         within thirty (30) days from the date of entry thereof and the
         Borrower or the relevant Subsidiary or Obligated Party shall not,
         within said period of thirty (30) days, or such longer period during
         which execution of the same shall have been stayed, appeal therefrom
         and cause the execution thereof to be stayed during such appeal.

                 (i)      The Borrower, any Subsidiary, or any Obligated Party
         shall fail to pay when due any principal of or interest on any Debt
         (other than the Obligations), or the maturity of any such Debt shall
         have been accelerated or any such Debt shall have been required to be
         prepaid prior to the stated maturity thereof.

                 (j)      This Agreement or any other Loan Document shall cease
         to be in full force and effect or shall be declared null and void or
         the validity or enforceability thereof shall be contested or
         challenged by the Borrower, any Subsidiary, any Obligated Party or any
         of their respective shareholders, or the Borrower or any Obligated
         Party shall deny that it has any further liability or obligation under
         any of the Loan Documents, or, subject to the provisions of Section
         6.3, any lien or security interest created by the Loan Documents shall
         for any reason cease to be a valid, first priority perfected security
         interest in and lien upon any of the Collateral purported to be
         covered thereby.

                 (k)      The Borrower, any of its Subsidiaries, or any
         Obligated Party, or any of their properties, revenues, or assets,
         shall become subject to an order of forfeiture, seizure, or
         divestiture (whether under RICO or otherwise) and the same shall not
         have been discharged within thirty (30) days from the date of entry
         thereof.

         Section 12.2.    Remedies Upon Default.  If any Event of Default shall
occur and be continuing, the Agent may (and if directed by Required Banks,
shall) without notice terminate the Revolving Credit Commitments and declare
the Obligations or any part thereof to be immediately due and payable, and the
same shall thereupon become immediately due and payable, without notice,
demand, presentment, notice of dishonor, notice of acceleration, notice of
intent to accelerate, notice of intent to demand, protest, or other formalities
of any kind, all of which are hereby expressly waived by the Borrower;
provided, however, that upon the occurrence of an Event of Default under
Section 12.1(e) or Section 12.1(f), the Revolving Credit Commitments shall
automatically terminate, and the Obligations shall become immediately due and
payable without notice, demand, presentment, notice of dishonor, notice of
acceleration, notice of intent to accelerate, notice of intent to demand,
protest, or other formalities of any kind, all of which are hereby expressly
waived by the Borrower.  Except as otherwise





                                      -62-
<PAGE>   64
expressly set forth herein, if any Event of Default shall occur and be
continuing, the Agent may take the actions authorized by Section 6.3 and
exercise all rights and remedies available to it in law or in equity, under the
Loan Documents, or otherwise.

         Section 12.3.    Letters of Credit.  If any Event of Default shall
occur and be continuing, the Borrower shall, if requested by the Agent,
immediately deposit with and pledge to the Agent cash or cash equivalent
investments in an amount equal to outstanding Letter of Credit Liabilities.

         Section 12.4.    Performance by the Agent.  If the Borrower shall fail
to perform any covenant or agreement contained in any of the Loan Documents,
the Agent may, at the direction of the Required Banks, perform or attempt to
perform such covenant or agreement on behalf of the Borrower.  In such event,
the Borrower shall, at the request of the Agent, promptly pay any amount
expended by the Agent or the Banks in connection with such performance or
attempted performance to the Agent, together with interest thereon at the
Default Rate from and including the date of such expenditure to but excluding
the date such expenditure is paid in full.  Notwithstanding the foregoing, it
is expressly agreed that neither the Agent, the Issuing Bank nor any Bank shall
have any liability or responsibility for the performance of any obligation of
the Borrower under this Agreement or any other Loan Document.


                                 ARTICLE XIII.

                                   The Agent

         Section 13.1.    Appointment, Powers and Immunities.  In order to
expedite the various transactions contemplated by this Agreement, the Banks and
the Issuing Bank hereby irrevocably appoint and authorize Agent to act as their
Agent hereunder and under each of the other Loan Documents.  The Agent consents
to such appointment and agrees to perform the duties of the Agent as specified
herein.  The Banks and the Issuing Bank authorize and direct the Agent to take
such action in their name and on their behalf under the terms and provisions of
the Loan Documents and to exercise such rights and powers thereunder as are
specifically delegated to or required of the Agent for the Banks and the
Issuing Bank, together with such rights and powers as are reasonably incidental
thereto.  The Agent is hereby expressly authorized to act as the Agent on
behalf of itself, the other Banks and the Issuing Bank:

                 (a)      To receive on behalf of each of the Banks, the
         Issuing Bank and the Agent any payment of principal, interest, fees or
         other amounts paid pursuant to this Agreement and the Revolving Credit
         Notes and to distribute to each Bank, the





                                      -63-
<PAGE>   65
         Issuing Bank and the Agent, or any or some of them its share of all
         payments so received as provided in this Agreement;

                 (b)      To receive all documents and items to be furnished
         under the Loan Documents;

                 (c)      To act as nominee for and on behalf of the Banks, the
         Issuing Bank and the Agent in and under the Loan Documents;

                 (d)      To arrange for the means whereby the funds of the
         Banks are to be made available to the Borrower;

                 (e)      To distribute to the Banks and the Issuing Bank
         information, requests, notices, payments, prepayments, documents and
         other items received from the Borrower, the other Obligated Parties,
         and other Persons;

                 (f)      To execute and deliver to the Borrower, the other
         Obligated Parties, and other Persons, all requests, demands,
         approvals, notices, and consents received from the Banks and the
         Issuing Bank;

                 (g)      To the extent permitted by the Loan Documents, to
         exercise on behalf of itself, each Bank and the Issuing Bank all
         rights and remedies of Banks upon the occurrence of any Event of
         Default;

                 (h)      To accept, execute, and deliver any security
         documents as the secured party, including, without limitation all
         financing statements; and

                 (i)      To take such other actions as may be requested by 
         Required Banks.

         Neither the Agent nor any of its Affiliates, officers, directors,
employees, attorneys, or agents shall be liable for any action taken or omitted
to be taken by any of them hereunder or otherwise in connection with this
Agreement or any of the other Loan Documents except for its or their own gross
negligence or willful misconduct.  Without limiting the generality of the
preceding sentence, the Agent (i) may treat the payee of any Revolving Credit
Note as the holder thereof until the Agent receives written notice of the
assignment or transfer thereof signed by such payee and in form satisfactory to
the Agent; (ii) shall have no duties or responsibilities except those expressly
set forth in this Agreement and the other Loan Documents, and shall not by
reason of this Agreement or any other Loan Document be a trustee or fiduciary
for any Bank or the Issuing Bank; (iii) shall not be required to initiate any
litigation or collection proceedings hereunder or under any other Loan Document
except to the extent requested by the Required Banks; (iv) shall not be
responsible to





                                      -64-
<PAGE>   66
the Banks or the Issuing Bank for any recitals, statements, representations or
warranties contained in this Agreement or any other Loan Document, or any
certificate or other document referred to or provided for in, or received by
any of them under, this Agreement or any other Loan Document, or for the value,
validity, effectiveness, enforceability, or sufficiency of this Agreement or
any other Loan Document or any other document referred to or provided for
herein or therein or for any failure by any Person to perform any of its
obligations hereunder or thereunder; (v) may consult with legal counsel
(including counsel for the Borrower), independent public accountants, and other
experts selected by it and shall not be liable for any action taken or omitted
to be taken in good faith by it in accordance with the advice of such counsel,
accountants, or experts; and (vi) shall incur no liability under or in respect
of any Loan Document by acting upon any notice, consent, certificate, or other
instrument or writing believed by it to be genuine and signed or sent by the
proper party or parties.  As to any matters not expressly provided for by this
Agreement, the Agent shall in all cases be fully protected in acting, or in
refraining from acting, hereunder in accordance with instructions signed by the
Required Banks, and such instructions of the Required Banks and any action
taken or failure to act pursuant thereto shall be binding on all of the Banks;
provided, however, that the Agent shall not be required to take any action
which exposes the Agent to personal liability or which is contrary to this
Agreement or any other Loan Document or applicable law.

         Section 13.2.    Rights of Agent as a Bank.  With respect to its
Commitment, the Advances made by it and the Revolving Credit Notes issued to
it, the Agent in its capacity as a Bank hereunder shall have the same rights
and powers hereunder as any other Bank and may exercise the same as though it
were not acting as the Agent or the Issuing Bank and the term "Bank" or "Banks"
shall, unless the context otherwise indicates, include the Agent in its
individual capacity.  The Agent and its Affiliates may (without having to
account therefor to any Banks or the Issuing Bank) accept deposits from, lend
money to, act as trustee under indentures of, provide merchant banking services
to, and generally engage in any kind of business with the Borrower, any of its
Subsidiaries, any other Obligated Party, and any other Person who may do
business with or own securities of the Borrower, any Subsidiary, or any other
Obligated Party, all as if it were not acting as the Agent and without any duty
to account therefor to the Banks or the Issuing Bank.

         Section 13.3.    Sharing of Payments, Etc.  If any Bank shall obtain
any payment of any principal of or interest on any Advance made by it under
this Agreement or payment of any other obligation under the Loan Documents then
owed by the Borrower or any other Obligated Party to such Bank, whether
voluntary, involuntary, through the exercise of any right of setoff, banker's
lien, counterclaim or similar right, or otherwise, in excess of its pro





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<PAGE>   67
rata share, such Bank shall promptly purchase from the other Banks
participations in the Advances held by them hereunder in such amounts, and make
such other adjustments from time to time as shall be necessary to cause such
purchasing Bank to share the excess payment ratably with each of the other
Banks in accordance with its pro rata portion thereof.  To such end, all of the
Banks shall make appropriate adjustments among themselves (by the resale of
participations sold or otherwise) if all or any portion of such excess payment
is thereafter rescinded or must otherwise be restored.  The Borrower agrees, to
the fullest extent it may effectively do so under applicable law, that any Bank
so purchasing a participation in the Advances made by the other Banks may
exercise all rights of setoff, banker's lien, counterclaim, or similar rights
with respect to such participation as fully as if such Bank were a direct
holder of Advances to the Borrower in the amount of such participation.
Nothing contained herein shall require any Bank to exercise any such right or
shall affect the right of any Bank to exercise, and retain the benefits of
exercising, any such right with respect to any other indebtedness or obligation
of the Borrower.

         Section 13.4.    INDEMNIFICATION.  THE BANKS HEREBY AGREE TO INDEMNIFY
THE AGENT FROM AND HOLD THE AGENT AND THE ISSUING BANK HARMLESS AGAINST (TO THE
EXTENT NOT REIMBURSED UNDER SECTIONS 14.1 AND 14.2, BUT WITHOUT LIMITING THE
OBLIGATIONS OF THE BORROWER UNDER SECTIONS 14.1 AND 14.2), RATABLY IN
ACCORDANCE WITH THEIR RESPECTIVE COMMITMENTS, ANY AND ALL LIABILITIES,
OBLIGATIONS, LOSSES, DAMAGES, PENALTIES, ACTIONS, JUDGMENTS, DEFICIENCIES,
SUITS, COSTS, EXPENSES (INCLUDING ATTORNEYS' FEES), AND DISBURSEMENTS OF ANY
KIND OR NATURE WHATSOEVER WHICH MAY BE IMPOSED ON, INCURRED BY, OR ASSERTED
AGAINST THE AGENT OR THE ISSUING BANK IN ANY WAY RELATING TO OR ARISING OUT OF
ANY OF THE LOAN DOCUMENTS OR ANY ACTION TAKEN OR OMITTED TO BE TAKEN BY THE
AGENT OR THE ISSUING BANK UNDER OR IN RESPECT OF ANY OF THE LOAN DOCUMENTS;
PROVIDED, THAT NO BANK SHALL BE LIABLE FOR ANY PORTION OF THE FOREGOING TO THE
EXTENT CAUSED BY THE AGENT'S OR THE ISSUING BANK'S GROSS NEGLIGENCE OR WILLFUL
MISCONDUCT.  WITHOUT LIMITATION OF THE FOREGOING, IT IS THE EXPRESS INTENTION
OF THE BANKS THAT THE AGENT AND THE ISSUING BANK SHALL BE INDEMNIFIED HEREUNDER
FROM AND HELD HARMLESS AGAINST ALL OF SUCH LIABILITIES, OBLIGATIONS,    LOSSES,
DAMAGES, PENALTIES, ACTIONS, JUDGMENTS, DEFICIENCIES, SUITS, COSTS, EXPENSES
(INCLUDING ATTORNEYS' FEES), AND DISBURSEMENTS OF ANY KIND OR NATURE DIRECTLY
OR INDIRECTLY ARISING OUT OF OR RESULTING FROM THE SOLE OR CONTRIBUTORY
NEGLIGENCE OF THE AGENT OR THE ISSUING BANK.  WITHOUT LIMITING ANY OTHER
PROVISION OF THIS SECTION, EACH BANK AGREES TO REIMBURSE THE AGENT AND THE
ISSUING BANK PROMPTLY





                                      -66-
<PAGE>   68
UPON DEMAND FOR ITS PRO RATA SHARE (CALCULATED ON THE BASIS OF THE COMMITMENTS)
OF ANY AND ALL OUT-OF-POCKET EXPENSES (INCLUDING ATTORNEYS' FEES) INCURRED BY
THE AGENT OR THE ISSUING BANK IN CONNECTION WITH THE PREPARATION, EXECUTION,
DELIVERY, ADMINISTRATION, MODIFICATION, AMENDMENT OR ENFORCEMENT (WHETHER
THROUGH NEGOTIATIONS, LEGAL PROCEEDINGS, OR OTHERWISE) OF, OR LEGAL ADVICE IN
RESPECT OF RIGHTS OR RESPONSIBILITIES UNDER, THE LOAN DOCUMENTS, TO THE EXTENT
THAT THE AGENT OR THE ISSUING BANK IS NOT REIMBURSED FOR SUCH EXPENSES BY THE
BORROWER.

         Section 13.5.    Independent Credit Decisions.  Each Bank agrees that
it has independently and without reliance on the Agent, the Issuing Bank, or
any other Bank, and based on such documents and information as it has deemed
appropriate, made its own credit analysis of the Borrower and the Obligated
Parties and decision to enter into this Agreement and that it will,
independently and without reliance upon the Agent, the Issuing Bank, or any
other Bank, and based upon such documents and information as it shall deem
appropriate at the time, continue to make its own analysis and decisions in
taking or not taking action under this Agreement or any of the other Loan
Documents.  The Agent shall not be required to keep itself informed as to the
performance or observance by the Borrower or any Obligated Party of this
Agreement or any other Loan Document or to inspect the properties or books of
the Borrower or any Obligated Party.  Except for notices, reports and other
documents and information expressly required to be furnished to the Banks by
the Agent hereunder or under the other Loan Documents, the Agent shall not have
any duty or responsibility to provide the Issuing Bank or any Bank with any
credit or other financial information concerning the affairs, financial
condition or business of the Borrower or any Obligated Party (or any of their
Affiliates) which may come into the possession of the Agent or any of its
Affiliates.

         Section 13.6.    Several Commitments.  The Commitments and other
obligations of the Banks under this Agreement are several.  The default by any
Bank in making an Advance in accordance with its' Commitment shall not relieve
the other Banks of their obligations under this Agreement.  In the event of any
default by any Bank in making any Advance, each nondefaulting Bank shall be
obligated to make its Advance but shall not be obligated to advance the amount
which the defaulting Bank was required to advance hereunder.  In no event shall
any Bank be required to advance an amount or amounts which shall in the
aggregate exceed such Bank's Commitment.  No Bank shall be responsible for any
act or omission of any other Bank.

         Section 13.7.    Successor Agent.  Subject to the appointment and
acceptance of a successor Agent as provided below, the Agent may resign at any
time by giving notice thereof to the Banks and





                                      -67-
<PAGE>   69
the Borrower and the Agent may be removed at any time with or without cause
by the Required Banks.  Upon any such resignation or removal, the Required
Banks (with the consent of the Borrower, with consent will not be unreasonably
withheld) will have the right to appoint a successor Agent.  If no successor
Agent shall have been so appointed by the Required Banks and shall have
accepted such appointment within thirty (30) days after the retiring Agent's
giving of notice of resignation or the Required Banks' removal of the retiring
Agent, then the retiring Agent may, on behalf of the Banks, appoint a successor
Agent, which shall be a commercial bank organized under the laws of the United
States of America or any State thereof and having combined capital and surplus
of at least $500,000,000.00.  Upon the acceptance of its appointment as
successor Agent, such successor Agent shall thereupon succeed to and become
vested with all rights, powers, privileges, immunities, and duties of the
resigning or removed Agent, and the resigning or removed Agent shall be
discharged from its duties and obligations under this Agreement and the other
Loan Documents.  After any Agent's resignation or removal as Agent, the
provisions of this Article XIII shall continue in effect for its benefit in
respect of any actions taken or omitted to be taken by it while it was the
Agent.


                                  ARTICLE XIV.

                                 Miscellaneous

         Section 14.1.    Expenses.  The Borrower hereby agrees to pay on
demand (a) all reasonable costs and expenses of the Agent in connection with
the preparation, negotiation, execution, and delivery of this Agreement and the
other Loan Documents and any and all amendments, modifications, renewals,
extensions, and supplements thereof and thereto, including, without limitation,
the reasonable fees and expenses of legal counsel for the Agent, the Issuing
Bank and/or the Banks, (b) all reasonable costs and expenses of the Agent, the
Issuing Bank and/or the Banks in connection with any Default and the
enforcement of this Agreement or any other Loan Document, including, without
limitation, the reasonable fees and expenses of legal counsel for the Agent,
the Issuing Bank and/or the Banks, (c) all transfer, stamp, documentary, or
other similar taxes, assessments, or charges levied by any Governmental
Authority in respect of this Agreement or any of the other Loan Documents, (d)
all costs, expenses, assessments, and other charges incurred in connection with
any filing, registration, recording, or perfection of any security interest or
Lien contemplated by this Agreement or any other Loan Document, and (e) all
other reasonable costs and expenses incurred by the Agent, the Issuing Bank
and/or the Banks in connection with this Agreement or any other Loan Document,
including, without limitation, all costs, expenses, and other charges incurred
in connection with obtaining audit, or appraisal in respect of the Collateral.





                                      -68-
<PAGE>   70
         SECTION 14.2.    INDEMNIFICATION.  THE BORROWER SHALL INDEMNIFY EACH
OF THE AGENT, THE ISSUING BANK, AND THE BANKS AND EACH AFFILIATE THEREOF AND
THEIR RESPECTIVE OFFICERS, DIRECTORS, EMPLOYEES, ATTORNEYS, AND AGENTS FROM,
AND HOLD EACH OF THEM HARMLESS AGAINST, ANY AND ALL LOSSES, LIABILITIES,
CLAIMS, DAMAGES, PENALTIES, JUDGMENTS, DISBURSEMENTS, COSTS, AND EXPENSES
(INCLUDING ATTORNEYS' FEES) TO WHICH ANY OF THEM MAY BECOME SUBJECT WHICH
DIRECTLY OR INDIRECTLY ARISE FROM OR RELATE TO (A) THE NEGOTIATION, EXECUTION,
DELIVERY, PERFORMANCE, ADMINISTRATION, OR ENFORCEMENT OF ANY OF THE LOAN
DOCUMENTS, (B) ANY OF THE TRANSACTIONS CONTEMPLATED BY THE LOAN DOCUMENTS, (C)
ANY BREACH BY THE BORROWER OF ANY REPRESENTATION, WARRANTY, COVENANT, OR OTHER
AGREEMENT CONTAINED IN ANY OF THE LOAN DOCUMENTS, (D) THE PRESENCE, RELEASE,
THREATENED RELEASE, DISPOSAL, REMOVAL, OR CLEANUP OF ANY HAZARDOUS MATERIAL
LOCATED ON, ABOUT, WITHIN, OR AFFECTING ANY OF THE PROPERTIES OR ASSETS OF THE
BORROWER OR ANY SUBSIDIARY, OR (E) ANY INVESTIGATION, LITIGATION, OR OTHER
PROCEEDING, INCLUDING, WITHOUT LIMITATION, ANY THREATENED INVESTIGATION,
LITIGATION, OR OTHER PROCEEDING, RELATING TO ANY OF THE FOREGOING. WITHOUT
LIMITING ANY PROVISION OF THIS AGREEMENT OR OF ANY OTHER LOAN DOCUMENT, IT IS
THE EXPRESS INTENTION OF THE PARTIES HERETO THAT EACH PERSON TO BE INDEMNIFIED
UNDER THIS SECTION SHALL BE INDEMNIFIED FROM AND HELD HARMLESS AGAINST ANY AND
ALL LOSSES, LIABILITIES, CLAIMS, DAMAGES, PENALTIES, JUDGMENTS, DISBURSEMENTS,
COSTS, AND EXPENSES (INCLUDING ATTORNEYS' FEES) ARISING OUT OF OR RESULTING
FROM THE SOLE OR CONTRIBUTORY NEGLIGENCE OF SUCH PERSON, BUT NOT SUCH PERSON'S
GROSS NEGLIGENCE OR WILLFUL MISCONDUCT.

         Section 14.3.    Limitation of Liability.  Neither the Agent, the
Issuing Bank or the Banks nor any Affiliate, officer, director, employee,
attorney, or agent of the Agent, the Issuing Bank or the Banks shall have any
liability with respect to, and the Borrower hereby waives, releases, and agrees
not to sue any of them upon, any claim for any special, indirect, incidental,
or consequential damages suffered or incurred by the Borrower in connection
with, arising out of, or in any way related to, this Agreement or any of the
other Loan Documents, or any of the transactions contemplated by this Agreement
or any of the other Loan Documents.  The Borrower hereby waives, releases, and
agrees not to sue the Agent, the Issuing Bank or the Banks or any of such
Person's Affiliates, officers, directors, employees, attorneys, or agents for
punitive damages in respect of any claim in connection with, arising out of, or
in any way related to, this Agreement or any of the other Loan Documents, or
any of the transactions contemplated by this Agreement or any of the other Loan
Documents.  Nothing contained in this Section shall affect the rights of the
Borrower to collect





                                      -69-
<PAGE>   71
actual damages awarded to them against any of the Agents, the Issuing Bank, the
Banks or any Affiliate of any of the foregoing Persons.

         Section 14.4.    No Duty.  All attorneys, accountants, appraisers, and
other professional Persons and consultants retained by any of the Agent, the
Issuing Bank or the Banks shall have the right to act exclusively in the
interest of such Persons and shall have no duty of disclosure, duty of loyalty,
duty of care, or other duty or obligation of any type or nature whatsoever to
the Borrower or any of the Borrower's shareholders or any other Person.

         Section 14.5.    Bank Not Fiduciary.  The relationship between the
Borrower, on one hand, and the Agent, the Issuing Bank and the Banks, on the
other hand, is solely that of debtor and creditor, and no such Person has any
fiduciary or other special relationship with the Borrower, and no term or
condition of any of the Loan Documents shall be construed so as to deem the
relationship between the Borrower and such Persons to be other than that of
debtor and creditor.

         Section 14.6.    Equitable Relief.  The Borrower recognizes that in
the event the Borrower fails to pay, perform, observe, or discharge any or all
of the Obligations, any remedy at law may prove to be inadequate relief to the
Agent, the Issuing Bank and the Banks.  The Borrower therefore agrees that the
Agent, the Issuing Bank and the Banks, if any of such Persons so requests,
shall be entitled to temporary and permanent injunctive relief in any such case
without the necessity of proving actual damages.

         Section 14.7.    No Waiver: Cumulative Remedies.  No failure on the
part of any of the Agent, the Issuing Bank or the Banks to exercise and no
delay in exercising, and no course of dealing with respect to, any right,
power, or privilege under this Agreement shall operate as a waiver thereof, nor
shall any single or partial exercise of any right, power, or privilege under
this Agreement preclude any other or further exercise thereof or the exercise
of any other right, power, or privilege.  The rights and remedies provided for
in this Agreement and the other Loan Documents are cumulative and not exclusive
of any rights and remedies provided by law.

         Section 14.8.    Successors and Assigns.  (a)  This Agreement shall be
binding upon and inure to the benefit of the parties hereto and their
respective successors and assigns.  The Borrower may not assign or transfer any
of its rights or obligations hereunder without the prior written consent of the
Agent and all of the Banks.  Any Bank may sell participations to one or more
banks or other institutions in or to all or a portion of its rights and
obligations under this Agreement and the other Loan Documents (including,
without limitation, all or a portion of its Commitments and the Advances owing
to it); provided, however, that (i) such





                                      -70-
<PAGE>   72
Bank's obligations under this Agreement and the other Loan Documents
(including, without limitation, its Commitments) shall remain unchanged, (ii)
such Bank shall remain solely responsible to the Borrower for the performance
of such obligations, (iii) such Bank shall remain the holder of its Revolving
Credit Notes for all purposes of this Agreement, (iv) the Borrower shall
continue to deal solely and directly with such Bank in connection with such
Bank's rights and obligations under this Agreement and the other Loan
Documents, and (v) such Bank shall not sell a participation that conveys to the
participant the right to vote or give or withhold consents under this Agreement
or any other Loan Document.

         (b)     The Borrower and each of the Banks agree that any Bank (the
"Assigning Bank") may, with the Agent's consent and unless an Event of Default
has occurred, the Borrower's consent, which consent of the Borrower shall not
be unreasonably withheld or delayed, at any time assign to one or more Eligible
Assignees all, or a proportionate part of all, of its rights and obligations
under this Agreement and the other Loan Documents (including, without
limitation, its Commitments and Advances) (each an "Assignee"); provided,
however, that (i) each such assignment shall be of a consistent, and not a
varying, percentage of all of the Assigning Bank's Commitments, rights and
obligations under this Agreement and the other Loan Documents, (ii) except in
the case of an assignment of all of a Bank's rights and obligations under this
Agreement and the other Loan Documents, the amount of the Commitments of the
Assigning Bank being assigned pursuant to each assignment (determined as of the
date of the Assignment and Acceptance with respect to such assignment) shall in
no event be less than $5,000,000.00, and (iii) the parties to each such
assignment shall execute and deliver to the Agent for its acceptance and
recording in the Register (as defined below), an Assignment and Acceptance,
together with the Revolving Credit Notes subject to such assignment, and a
processing and recordation fee of $3,500.00 to be paid by the Assignee.  Upon
such execution, delivery, acceptance, and recording, from and after the
effective date specified in each Assignment and Acceptance, which effective
date shall be at least five (5) Business Days after the execution thereof, or,
if so specified in such Assignment and Acceptance, the date of acceptance
thereof by the Agent, (x) the assignee thereunder shall be a party hereto as a
"Bank" and, to the extent that rights and obligations hereunder have been
assigned to it pursuant to such Assignment and Acceptance, have the rights and
obligations of a Bank hereunder and under the Loan Documents and (y) the Bank
that is an assignor thereunder shall, to the extent that rights and obligations
hereunder have been assigned by it pursuant to such Assignment and Acceptance,
relinquish its rights and be released from its obligations under this Agreement
and the other Loan Documents (and, in the case of an Assignment and Acceptance
covering all or the remaining portion of a Bank's rights and obligations under
the Loan Documents, such Bank shall cease to be a party thereto).





                                      -71-
<PAGE>   73
         (c)     By executing and delivering an Assignment and Acceptance, the
Bank that is an assignor thereunder and the assignee thereunder confirm to and
agree with each other and the other parties hereto as follows: (i) other than
as provided in such Assignment and Acceptance, such Assigning Bank makes no
representation or warranty and assumes no responsibility with respect to any
statements, warranties, or representations made in or in connection with the
Loan Documents or the execution, legality, validity, and enforceability,
genuineness, sufficiency, or value of the Loan Documents or any other
instrument or document furnished pursuant thereto; (ii) such Assigning Bank
makes no representation or warranty and assumes no responsibility with respect
to the financial condition of the Borrower or any Obligated Party or the
performance or observance by the Borrower or any Obligated Party of its
obligations under the Loan Documents; (iii) such assignee confirms that it has
received a copy of the other Loan Documents, together with copies of the
current financial statements dated a date acceptable to such assignee and such
other documents and information as it has deemed appropriate to make its own
credit analysis and decision to enter into such Assignment and Acceptance; (iv)
such assignee will, independently and without reliance upon the Agent or such
assignor and based on such documents and information as it shall deem
appropriate at the time, continue to make its own credit decisions in taking or
not taking action under this Agreement and the other Loan Documents; (v) such
assignee confirms that it is an Eligible Assignee; (vi) such assignee appoints
and authorizes the Agent to take such action as agent on its behalf and
exercise such powers under the Loan Documents as are delegated to the Agent by
the terms thereof, together with such powers as are reasonably incidental
thereto; and (vii) such assignee agrees that it will perform in accordance with
their terms all of the obligations which by the terms of the Loan Documents are
required to be performed by it as a Bank.

         (d)     The Agent shall maintain at its Principal Office a copy of
each Assignment and Acceptance delivered to and accepted by it and a register
for the recordation of the names and addresses of the Banks and the Commitments
of, and principal amount of the Advances owing to, each Bank from time to time
(the "Register").  The entries in the Register shall be conclusive and binding
for all purposes, absent manifest error, and the Borrower, the Agent, the
Issuing Bank and the Banks may treat each Person whose name is recorded in the
Register as a Bank hereunder for all purposes under the Loan Documents.  The
Register shall be available for inspection by the Borrower, the Issuing Bank or
any Bank at any reasonable time and from time to time upon reasonable prior
notice.

         (e)     Upon its receipt of an Assignment and Acceptance executed by
an Assigning Bank and assignee representing that it is an Eligible Assignee,
together with any Revolving Credit Note subject to such assignment, the Agent
shall, if such Assignment and Acceptance has been completed and is in the form
satisfactory to





                                      -72-
<PAGE>   74
the Agent in its sole discretion, (i) accept such Assignment and Acceptance,
(ii) record the information contained therein in the Register, and (iii) give
prompt written notice thereof to the Borrower.  Within five (5) Business Days
after its receipt of such notice, the Borrower, at its expense, shall execute
and deliver to the Agent in exchange for the surrendered the Revolving Credit
Notes, new Revolving Credit Notes to the order of such Eligible Assignee in an
amount equal to the Commitments assumed by it pursuant to such Assignment and
Acceptance and, if the Assigning Bank has retained a portion of its
Commitments, new Revolving Credit Notes to the order of the Assigning Bank in
an amount equal to the Commitments retained by it hereunder (each such
promissory note shall constitute a "Revolving Credit Note" for purposes of the
Loan Documents).  Such new Revolving Credit Notes shall be in an aggregate
principal amount of the surrendered Revolving Credit Notes, shall be dated the
last interest payment date prior to the effective date of such Assignment and
Acceptance, and shall otherwise be in substantially the form of the appropriate
Revolving Credit Notes initially issued pursuant hereto with appropriate
changes.

         (f)     Any Bank may, in connection with any assignment or
participation or proposed assignment or participation pursuant to this Section,
disclose to the assignee or participant or proposed assignee or participant,
any information relating to the Borrower or its Subsidiaries furnished to such
Bank by or on behalf of the Borrower or its Subsidiaries.

         Section 14.9.    Survival.  All representations and warranties made in
this Agreement or any other Loan Document or in any document, statement, or
certificate furnished in connection with this Agreement shall survive the
execution and delivery of this Agreement and the other Loan Documents, and no
investigation by any of the Agent, the Issuing Bank or the Banks or any closing
shall affect the representations and warranties or the right of any such Person
to rely upon them.  Without prejudice to the survival of any other obligation
of the Borrower hereunder, the obligations of the Borrower under Article V and
Sections 14.1 and 14.2 shall survive repayment of the Revolving Credit Notes
and termination of the Commitments.

         SECTION 14.10.   ENTIRE AGREEMENT; AMENDMENTS.  THIS AGREEMENT, THE
REVOLVING CREDIT NOTES, AND THE OTHER LOAN DOCUMENTS REFERRED TO HEREIN EMBODY
THE FINAL, ENTIRE AGREEMENT AMONG THE PARTIES HERETO AND SUPERSEDE ANY AND ALL
PRIOR COMMITMENTS, AGREEMENTS, REPRESENTATIONS, AND UNDERSTANDINGS, WHETHER
WRITTEN OR ORAL, RELATING TO THE SUBJECT MATTER HEREOF AND MAY NOT BE
CONTRADICTED OR VARIED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT
ORAL AGREEMENTS OR DISCUSSIONS OF THE PARTIES HERETO.  THERE ARE NO ORAL
AGREEMENTS AMONG THE PARTIES HERETO.  THE PROVISIONS OF THIS





                                      -73-
<PAGE>   75
AGREEMENT AND THE OTHER LOAN DOCUMENTS TO WHICH ANY OF THE BORROWER IS A PARTY
MAY BE AMENDED OR WAIVED ONLY BY AN INSTRUMENT IN WRITING SIGNED BY THE PARTIES
HERETO.  NO AMENDMENT, MODIFICATION OR WAIVER OF, OR CONSENT WITH RESPECT TO,
ANY PROVISION OF THIS AGREEMENT OR THE NOTES SHALL IN ANY EVENT BE EFFECTIVE
UNLESS THE SAME SHALL BE IN WRITING AND SIGNED AND DELIVERED BY BANKS HAVING AN
AGGREGATE PERCENTAGE OF NOT LESS THAN THE AGGREGATE PERCENTAGE EXPRESSLY
DESIGNATED HEREIN WITH RESPECT THERETO OR, IN THE ABSENCE OF SUCH DESIGNATION
AS TO ANY PROVISION OF THIS AGREEMENT OR THE NOTES, BY THE REQUIRED BANKS, AND
THEN ANY SUCH AMENDMENT, MODIFICATION, WAIVER OR CONSENT SHALL BE EFFECTIVE
ONLY IN THE SPECIFIC INSTANCE AND FOR THE SPECIFIC PURPOSE FOR WHICH GIVEN.  NO
AMENDMENT, MODIFICATION, WAIVER OR CONSENT SHALL CHANGE THE PERCENTAGE OF ANY
BANK WITHOUT THE CONSENT OF SUCH BANK. NO AMENDMENT, MODIFICATION, WAIVER OR
CONSENT SHALL (a) EXTEND OR INCREASE THE AMOUNT OF THE COMMITMENTS, (b) EXTEND
THE DATE FOR PAYMENT OF ANY PRINCIPAL OF OR INTEREST ON THE ADVANCES OR ANY
FEES OR OTHER AMOUNTS PAYABLE HEREUNDER, (c) REDUCE THE PRINCIPAL AMOUNT OF ANY
ADVANCES, THE RATE OF INTEREST THEREON OR ANY FEES OR OTHER AMOUNTS PAYABLE
HEREUNDER, (d) RELEASE A GUARANTY AGREEMENT (OTHER THAN WITH RESPECT TO A
GUARANTOR WHICH CEASES TO BE A MATERIAL SUBSIDIARY AS A RESULT OF A TRANSACTION
PERMITTED HEREUNDER) OR ALL OR SUBSTANTIALLY ALL OF THE COLLATERAL OR (e)
REDUCE THE AGGREGATE PERCENTAGE REQUIRED TO EFFECT AN AMENDMENT, MODIFICATION,
WAIVER OR CONSENT WITHOUT, IN EACH CASE, THE CONSENT OF ALL BANKS.  NO
PROVISIONS OF ARTICLE XIII OR OTHER PROVISION OF THIS AGREEMENT AFFECTING THE
AGENT IN ITS CAPACITY AS SUCH SHALL BE AMENDED, MODIFIED OR WAIVED WITHOUT THE
CONSENT OF THE AGENT.  NO PROVISION OF THIS AGREEMENT RELATING TO THE RIGHTS OR
DUTIES OF AN ISSUING BANK IN ITS CAPACITY AS SUCH SHALL BE AMENDED, MODIFIED OR
WAIVED WITHOUT THE CONSENT OF SUCH ISSUING BANK.

         Section 14.11.   Maximum Interest Rate.  No provision of this
Agreement or any other Loan Document shall require the payment or the
collection of interest in excess of the maximum amount permitted by applicable
law.  If any excess of interest in such respect is hereby provided for, or
shall be adjudicated to be so provided, in any Loan Document or otherwise in
connection with this loan transaction, the provisions of this Section shall
govern and prevail and neither the Borrower nor the sureties, guarantors,
successors, or assigns of the Borrower shall be obligated to pay the excess
amount of such interest or any other excess sum paid for the use, forbearance,
or detention of sums loaned pursuant hereto.  In the event any of the Agent,
the Issuing Bank or the Banks ever receives, collects, or applies as interest
any such sum, such





                                      -74-
<PAGE>   76
amount which would be in excess of the maximum amount permitted by applicable
law shall be applied as a payment and reduction of the principal of the
indebtedness evidenced by the Revolving Credit Notes; and, if the principal of
the Revolving Credit Notes has been paid in full, any remaining excess shall
forthwith be paid to the Borrower.  In determining whether or not the interest
paid or payable exceeds the Maximum Rate, the Borrower and the Agent, the
Issuing Bank and the Banks shall, to the extent permitted by applicable law,
(a) characterize any non-principal payment as an expense, fee, or premium
rather than as interest, (b) exclude voluntary prepayments and the effects
thereof, and (c) amortize, prorate, allocate, and spread in equal or unequal
parts the total amount of interest throughout the entire contemplated term of
the indebtedness evidenced by the Revolving Credit Notes so that interest for
the entire term does not exceed the Maximum Rate.

         Section 14.12.   Notices.  All notices and other communications
provided for in this Agreement and the other Loan Documents to which the
Borrower is a party shall be in writing and may be telecopied (faxed), mailed
by certified mail return receipt requested, or delivered to the intended
recipient at the "Address for Notices" specified below its name on the
signature pages hereof; or, as to any party at such other address as shall be
designated by such party in a notice to the other party given in accordance
with this Section.  Except as otherwise provided in this Agreement, all such
communications shall be deemed to have been duly given when transmitted by
telecopy, subject to telephone confirmation of receipt, or when personally
delivered or, in the case of a mailed notice, when duly deposited in the mails,
in each case given or addressed as aforesaid; provided, however, notices to the
Agent pursuant to Articles II, III and IV shall not be effective until received
by the Agent.

         SECTION 14.13.   GOVERNING LAW; VENUE; SERVICE OF PROCESS.  THIS
AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE
STATE OF TEXAS AND THE APPLICABLE LAWS OF THE UNITED STATES OF AMERICA.  THIS
AGREEMENT HAS BEEN ENTERED INTO IN HARRIS COUNTY, TEXAS, AND IT SHALL BE
PERFORMABLE FOR ALL PURPOSES IN HARRIS COUNTY, TEXAS.  SUBJECT TO SECTION
14.20, ANY ACTION OR PROCEEDING AGAINST THE BORROWER UNDER OR IN CONNECTION
WITH ANY OF THE LOAN DOCUMENTS MAY BE BROUGHT IN ANY STATE OR FEDERAL COURT IN
HARRIS COUNTY, TEXAS.  THE BORROWER HEREBY IRREVOCABLY (A) SUBMITS TO THE
NONEXCLUSIVE JURISDICTION OF SUCH COURTS, AND (B) WAIVES ANY OBJECTION IT MAY
NOW OR HEREAFTER HAVE AS TO THE VENUE OF ANY SUCH ACTION OR PROCEEDING BROUGHT
IN ANY SUCH COURT OR THAT ANY SUCH COURT IS AN INCONVENIENT FORUM.  THE
BORROWER AGREES THAT SERVICE OF PROCESS UPON IT MAY BE MADE BY CERTIFIED OR
REGISTERED MAIL, RETURN RECEIPT REQUESTED, AT ITS ADDRESS SPECIFIED OR
DETERMINED IN





                                      -75-
<PAGE>   77
ACCORDANCE WITH THE PROVISIONS OF SECTION 14.12.  NOTHING HEREIN OR IN ANY OF
THE OTHER LOAN DOCUMENTS SHALL AFFECT THE RIGHT OF THE AGENT, THE ISSUING BANK
OR THE BANKS TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY LAW OR, SUBJECT
TO SECTION 14.20, SHALL LIMIT THE RIGHT OF SUCH PERSONS TO BRING ANY ACTION OR
PROCEEDING AGAINST THE BORROWER OR WITH RESPECT TO ANY OF ITS PROPERTY IN
COURTS IN OTHER JURISDICTIONS.  SUBJECT TO SECTION 14.20, ANY ACTION OR
PROCEEDING BY THE BORROWER AGAINST ANY OF THE AGENT, THE ISSUING BANK OR THE
BANKS SHALL BE BROUGHT ONLY IN A COURT LOCATED IN HARRIS COUNTY, TEXAS.

         Section 14.14.   Counterparts.  This Agreement may be executed in one
or more counterparts, each of which shall be deemed an original, but all of
which together shall constitute one and the same instrument.

         Section 14.15.   Severability.  Any provision of this Agreement held
by a court of competent jurisdiction to be invalid or unenforceable shall not
impair or invalidate the remainder of this Agreement and the effect thereof
shall be confined to the provision held to be invalid or illegal.

         Section 14.16.   Headings.  The headings, captions, and arrangements
used in this Agreement are for convenience only and shall not affect the
interpretation of this Agreement.

         Section 14.17.   Non-Application of Chapter 15 of Texas Credit Code.
The provisions of Chapter 15 of the Texas Credit Code (Vernon's Texas Civil
Statutes, Article 5069-15) are specifically declared by the parties hereto not
to be applicable to this Agreement or any of the other Loan Documents or to the
transactions contemplated hereby.

         Section 14.18.   Construction.  The Borrower, the Agent, the Issuing
Bank and the Banks acknowledge that each of them has had the benefit of legal
counsel of its own choice and has been afforded an opportunity to review this
Agreement and the other Loan Documents with its legal counsel and that this
Agreement and the other Loan Documents shall be construed as if jointly drafted
by the Borrower, the Agent, the Issuing Bank and the Banks.

         Section 14.19.   Independence of Covenants.  All covenants hereunder
shall be given independent effect so that if a particular action or condition
is not permitted by any of such covenants, the fact that it would be permitted
by an exception to, or be otherwise within the limitations of, another covenant
shall not avoid the occurrence of a Default if such action is taken or such
condition exists.





                                      -76-
<PAGE>   78
         Section 14.20.   Arbitration.  The Borrower, the Agent, the Issuing
Bank and the Banks (the "Parties") agree that upon the written demand of any
Party, whether made before or after the institution of any legal proceedings,
but prior to the rendering of any judgment in that proceeding, all disputes,
claims and controversies between them, whether individual, joint, or class in
nature, arising from this Agreement or any other Loan Document or otherwise,
including without limitation contract disputes and tort claims, shall be
resolved by binding arbitration pursuant to the Commercial Rules of the
American Arbitration Association ("AAA").  Any arbitration proceeding held
pursuant to this arbitration provision shall be conducted in the city nearest
the Borrower's address having an AAA regional office, or at any other place
selected by mutual agreement of the Parties.  Judgment upon any award rendered
by any arbitrator may be entered in any court having jurisdiction.  The statute
of limitations, estoppel, waiver, laches and similar doctrines which would
otherwise be applicable in an action brought by a Party shall be applicable in
any arbitration proceeding, and the commencement of an arbitration proceeding
shall be deemed the commencement of any action for these purposes.  The Federal
Arbitration Act (Title 9 of the United States Code) shall apply to the
construction, interpretation, and enforcement of this arbitration provision.

         Section 14.21.   Waiver of Trial By Jury.  To the fullest extent
permitted, by applicable law, the Borrower hereby voluntarily, knowingly,
irrevocably and unconditionally waives any right to have a jury participate in
resolving any dispute (whether based upon contract, tort or otherwise) between
or among the Borrower and any other Party to this Agreement arising out of or
in any way related to this Agreement, any other Loan Documents, or any
relationship between any other Party to this Agreement and the Borrower.  This
provision is a material inducement to the Banks to provide the financing
described in this Agreement.





                                      -77-
<PAGE>   79
         IN WITNESS WHEREOF, the parties hereto have duly executed this
Agreement as of the day and year first above written.


                                  BORROWER:
                                                              
                                  VERITAS DGC INC.,
                                  a Delaware corporation
                             
                             
                                  By:
                                     ------------------------------------
                                           Anthony Tripodo
                                           Executive Vice President and
                                           Chief Financial Officer
                             
                                  Address for Notices:
                                  3701 Kirby Drive, Suite 112
                                  Houston, Texas 77098
                                  Fax No.:  713-630-4456
                                  Telephone No.:  713-526-5611
                                  Attention:  Chief Financial Officer
                             
                             
                             
                                  AGENT:
                                  
                             
                                  BANK ONE, TEXAS, N.A.
                             
                             
                                  By:
                                     ------------------------------------
                                           Marc A. Dunmire
                                           Vice President
                             
                                  Address for Notices:
                                  910 Travis
                                  Houston, Texas 77002
                                  Fax No.:  713-751-6199
                                  Telephone No.:  713-751-3644
                                  Attention:  Marc A. Dunmire
                             
                             
                             


                                      -78-
<PAGE>   80

                                   ISSUING BANK:
                                                                 
                                   BANK ONE, TEXAS, N.A.
                                
                                
                                   By:
                                      -------------------------------
                                            Marc A. Dunmire
                                            Vice President
                                
                                   Address for Notices:
                                   910 Travis
                                   Houston, Texas 77002
                                   Fax No.:  713-751-6199
                                   Telephone No.:  713-751-3644
                                   Attention:  Marc A. Dunmire
                                
                                
                                
                                   BANKS:
                                                                  
                                   BANK ONE, TEXAS, N.A.
                                
                                
                                   By:
                                      -------------------------------
                                            Marc A. Dunmire
                                            Vice President
                                
                                   Address for Notices:
                                   910 Travis
                                   Houston, Texas 77002
                                   Fax No.:  713-751-6199
                                   Telephone No.:  713-751-3644
                                   Attention:  Marc A. Dunmire
                                
                                
                                   Applicable Lending Office:
                                
                                   910 Travis
                                   Houston, Texas 77002
                                   Fax No.:  713-751-6199
                                   Telephone No.:  713-751-3644
                                   Attention:  Marc A. Dunmire
                                
                                
                                   Revolving Credit Commitment:
                                
                                   $30,000,000.00
                                




                                      -79-
<PAGE>   81

                                   COMERICA BANK
                               
                               
                                   By:
                                      ------------------------------------
                                            Reginald M. Goldsmith, III
                                            Vice President
                               
                                   Address for Notices:
                                   4100 Spring Valley
                                   Dallas, Texas 75244
                                   Fax No.:  214-818-2550
                                   Telephone No.:  214-818-2548
                                   Attention:  Reginald M. Goldsmith,
                                                 III
                               
                               
                                   Applicable Lending Office:
                               
                                   4100 Spring Valley
                                   Dallas, Texas 75244
                                   Fax No.:  702-791-2371
                                   Telephone No.:  702-791-4804
                                   Attention:  Reginald M. Goldsmith,
                                                 III and Regina McGuire
                               
                               
                                   Revolving Credit Commitment:
                               
                                   $10,000,000.00
                               
                               



                                      -80-
<PAGE>   82
                                   BANQUE NATIONALE DE PARIS
                              
                              
                                   By:
                                      -------------------------------
                                            Mike Shryock
                                            Vice President
                              
                                   Address for Notices:
                                   333 Clay Street, Suite 3400
                                   Houston, Texas 77002
                                   Fax No.:  713-659-1414
                                   Telephone No.:  713-951-1224
                                   Attention:  Mike Shryock
                              
                              
                                   Applicable Lending Office:
                              
                                   333 Clay Street, Suite 3400
                                   Houston, Texas 77002
                                   Fax No.:  713-659-1414
                                   Telephone No.:  713-951-1224
                                   Attention:  Mike Shryock
                              
                              
                                   Revolving Credit Commitment:
                              
                                   $10,000,000.00
                              
                              



                                      -81-
<PAGE>   83
                                                                               
                               INDEX TO SCHEDULES

<TABLE>
<CAPTION>
     Schedule             Description of Schedule                                                  Section
     <S>                  <C>                                                                      <C>                        
     1.1.A.               Pricing Schedule                                                          1.1

     1.1.B.               Guarantors                                                                1.1

     1.1.C.               Restricted Subsidiaries                                                   1.1

       8.5                Existing Litigation                                                       8.5

       8.9                Existing Debt                                                             8.9

      8.14                List of Subsidiaries                                                      8.14

      8.20                Environmental Matters                                                     8.20

      10.2                Existing Liens                                                            10.2
</TABLE>



                                                                                
                               INDEX TO EXHIBITS
<TABLE>
<CAPTION> 
     Exhibit              Description of Exhibit                                                  Section/
                                                                                                  Appendix
     <S>                  <C>                                                                     <C> 
       "A"                Form of Revolving Credit Note                                             2.2

       "B"                Security Agreement-Borrower                                               6.1

      "C-1"               Form of Security Agreement-Guarantor
                          (Domestic corporate Guarantors)                                           6.1

      "C-2"               Security Agreement-Guarantor (Partnership)                                6.1

      "C-3"               Charge Debenture (Malaysia)                                               6.1

      "C-4"               Charge Debenture (U.K.)                                                   6.1

       "D"                Form of Guaranty                                                          7.1

       "E"                Advance Request Form                                                     7.2(a)

       "F"                Compliance Certificate                                                   9.1(c)

       "G"                Borrowing Base Report                                                    7.2(q)

       "H"                Conversion/Continuation Notice                                            4.9
</TABLE>





                                      -82-
<PAGE>   84
                                 SCHEDULE 1.1.A

                                Pricing Schedule

         The Prime Rate Margin, the LIBOR Margin, the rate per annum applicable
for non-use fees and the rate per annum applicable for letter of credit fees,
respectively, shall be determined in accordance with the table below and the
other provisions of this Schedule 1.1.A.



<TABLE>
<CAPTION>                                                                                                      
                                   LEVEL I            LEVEL II          LEVEL III           LEVEL IV

  <S>                              <C>                <C>               <C>                 <C>       
  Rate for Non-Use Fee
                                    0.200%             0.250%            0.375%              0.375%

  LIBOR Margin                      0.625%             0.875%            1.125%              1.375%

  Prime Rate Margin                 0.000%             0.000%            0.000%              0.000%

  Rate for Letters
  of Credit                         0.625%             0.875%            1.125%              1.375%
</TABLE>


         Level I applies when the Funded Debt to EBITDA Ratio is less than 1.00
to 1.00.

         Level II applies when the Funded Debt to EBITDA Ratio is equal to or
greater than 1.00 to 1.00 but less than 1.25 to 1.00.

         Level III applies when the Funded Debt to EBITDA Ratio is equal to or
greater than 1.25 to 1.00 but less than 1.50 to 1.00.

         Level IV applies when the Funded Debt to EBITDA Ratio is equal to or
greater than 1.50 to 1.00.

         The applicable Level shall be adjusted, to the extent applicable, 45
days (or, in the case of the last Fiscal Quarter of any Fiscal Year, 120 days)
after the end of each Fiscal Quarter based on the Funded Debt to EBITDA Ratio
as of the last day of such Fiscal Quarter; provided that if the Borrower fails
to deliver the financial statements required by Section 9.1(a) or 9.1(b), as
applicable, and the related Compliance Certificate required by Section 9.1(c)
by the 45th day (or, if applicable, the 120th day) after any Fiscal Quarter,
Level IV shall apply until such financial statements are delivered.
Notwithstanding the foregoing, the applicable Level shall be Level I at all
times prior to receipt of financial statements and the related Compliance
Certificate as of July 31, 1998.





                                      -83-
<PAGE>   85
                                 SCHEDULE 1.1.B

                               List of Guarantors

                             Addresses for Notices



Digicon Geophysical Corp.
3701 Kirby Drive, Suite 112
Houston, Texas 77098
Fax No.:  713-630-4456
Telephone No.:  713-526-5611
Attention:  Chief Financial Officer


Digicon (Malaysia) Sdn. Bhd.
c/o Veritas DGC Asia pacific, Ltd.
Union Industrial ldg. #06-01, 37
Jalan Pemimpin
Singapore 577177
Fax No.:  65-259-1336
Telephone No.:  65-359-3212
Attention:  Nirmal Singh


Euroseis, Inc.
3701 Kirby Drive, Suite 112
Houston, Texas 77098
Fax No.:  713-630-4456
Telephone No.:  713-526-5611
Attention:  Chief Financial Officer


Veritas DGC Asia Pacific, Ltd.
3701 Kirby Drive, Suite 112
Houston, Texas 77098
Fax No.:  713-630-4456
Telephone No.:  713-526-5611
Attention:  Chief Financial Officer


Veritas DGC Land Inc.
3701 Kirby Drive, Suite 112
Houston, Texas 77098
Fax No.:  713-630-4456
Telephone No.:  713-526-5611
Attention:  Chief Financial Officer





                                      -84-
<PAGE>   86
Veritas DGC, Ltd.
Digicon Centre, Crompton Way
Crawley, Sussex, RH10 2QR
England
Fax No.:  011-44-1293-443010
Telephone No.:  011-44-1293-443000
Attention:  Martin Sambrook


Veritas Energy Services Partnership
2200, 715 - 5th Avenue SW
Calgary, Alberta T2P 5A2
Fax No.:  403-205-6040
Telephone No.:  403-205-6000
Attention:  Barb Exner





                                      -85-
<PAGE>   87
                                 SCHEDULE 1.1.C

                            Restricted Subsidiaries





                                      -86-

<PAGE>   1

                                                                      EXHIBIT 21

                         SUBSIDIARIES OF THE REGISTRANT

The following is a list of all subsidiaries of the Registrant at July 31, 1998
owned by the Registrant or one or more of its other subsidiaries:


                                                      STATE OR COUNTRY
         CORPORATE NAME OF SUBSIDIARY                OF INCORPORATION
   ------------------------------------------    ------------------------
   Veritas Energy Services Inc.                          Canada
   Veritas DGC Land Ltd.                                 Canada
   Canex Information Services Ltd.                       Canada
   Veritas Geoservices Ltd.                              Canada
   Veritas Energy Services (US) Inc.                     Canada
   Veritas Energy Services Partnership                   Canada
   Digicon Geophysical Corp.                             Delaware
   Veritas DGC Asia Pacific Ltd.                         Delaware
   Veritas DGC Ltd.                                      United Kingdom
   Veritas DGC Australia (Pty) Ltd.                      Australia
   Veritas DGC Land Inc.                                 Delaware
   Veritas Seismic S.A.                                  Venezuela
   Veritas DGC (Malaysia) Sdn. Bhd.                      Malaysia
   Veritas DGC (B) Sdn Bhd.                              Brunei
   Veritas Geophysical Inc.                              Delaware
   Veritas DGC Land Guatamala S.A.                       Guatamala
   Digicon de Venezuela C.A.                             Venezuela
   Digicon (Nigeria) Ltd.                                Nigeria
   Veritas DGC Singapore Pte. Ltd.                       Singapore
   P.T.  Digicon Mega Pratama                            Indonesia
   Digital Exploration (Nigeria) Limited                 Nigeria
   Seismic Company of America, Inc.                      Delaware
   Euroseis, Inc.                                        Delaware
   Veritas Geophysical I                                 Cayman Islands
   Veritas Geophysical II                                Cayman Islands
   Veritas Geophysical III                               Cayman Islands
   Veritas Geophysical IV                                Cayman Islands
   Veritas Geophysical do Brasil, Ltda.                  Brazil
   Digicon Finance N.V.                                  Netherlands Antilles

<PAGE>   1


                                                                    EXHIBIT 23-A

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in the Registration 
Statement on Form S-8 (No. 333-09679) and the Registration Statements on 
Form S-3 (No. 33-63875, No. 333-10517 and No. 333-17517) of Veritas DGC Inc., 
of our report dated October 1, 1998 appearing on page 15 of Veritas DGC Inc.'s 
Annual Report on Form 10-K for the year ended July 31, 1998.





/s/ PRICEWATERHOUSECOOPERS LLP
PRICEWATERHOUSECOOPERS LLP

October 2, 1998

<PAGE>   1
                                                                    EXHIBIT 23-B

                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
We hereby consent to the incorporation by reference in the Registration
Statement on Form S-8 (No. 333-09679) and the Registration Statements on Form
S-3 (No. 33-63875, No. 333-10517 and No. 333-17517) of Veritas DGC Inc., of our
report dated September 20, 1996 appearing on page 17 of Veritas DGC Inc.'s
Annual Report on Form 10-K for the year ended July 31, 1998.
 
PRICEWATERHOUSECOOPERS
Chartered Accountants
 
October 2, 1998

<PAGE>   1
                                                                    EXHIBIT 23-C
 
                        CONSENT OF INDEPENDENT AUDITORS
 
We consent to the incorporation by reference in Registration Statement No.
33-63875 on Form S-3, Registration Statement No. 333-09679 on Form S-8,
Registration Statement No. 333-17517 on Form S-3, Registration Statement No.
333-38377 on Form S-8, Registration Statement No. 333-41829 on Form S-8,
Registration Statement No. 333-48953 on Form S-8, Registration Statement No.
333-57603 on Form S-8, and Registration Statement No. 333-65081 on Form S-8 of
our report dated October 10, 1996 on the consolidated statements of income, cash
flows and changes in stockholders' equity of Veritas DGC Inc. and subsidiaries
for the year ended July 31, 1996 appearing in this Annual Report on Form 10-K
for the year ended July 31, 1998.
 
DELOITTE & TOUCHE LLP
 
Houston, Texas
October 2, 1998

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM VERITAS DGC
INC.'S FORM 10-K FOR THE YEAR ENDED JULY 31, 1998 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FORM 10-K.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          JUL-31-1998
<PERIOD-START>                             AUG-01-1997
<PERIOD-END>                               JUL-31-1998
<CASH>                                             186
<SECURITIES>                                         0
<RECEIVABLES>                                  151,820
<ALLOWANCES>                                     1,248
<INVENTORY>                                      4,106
<CURRENT-ASSETS>                               212,491
<PP&E>                                         326,024
<DEPRECIATION>                                 151,104
<TOTAL-ASSETS>                                 478,490
<CURRENT-LIABILITIES>                          106,451
<BONDS>                                         75,272
                                0
                                          0
<COMMON>                                           213
<OTHER-SE>                                     291,483
<TOTAL-LIABILITY-AND-EQUITY>                   478,490
<SALES>                                              0
<TOTAL-REVENUES>                               528,959
<CGS>                                                0
<TOTAL-COSTS>                                  346,896
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               7,318
<INCOME-PRETAX>                                100,204
<INCOME-TAX>                                    34,218
<INCOME-CONTINUING>                             66,958
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    66,958
<EPS-PRIMARY>                                     2.96
<EPS-DILUTED>                                     2.87
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM VERITAS
DGC INC.'S FORM 10-K FOR THE YEAR ENDED JULY 31, 1998 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FORM 10-K.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          JUL-31-1997
<PERIOD-START>                             AUG-01-1996
<PERIOD-END>                               JUL-31-1997
<CASH>                                             550
<SECURITIES>                                         0
<RECEIVABLES>                                  120,946
<ALLOWANCES>                                       646
<INVENTORY>                                      2,333
<CURRENT-ASSETS>                               205,435
<PP&E>                                         240,758
<DEPRECIATION>                                 108,004
<TOTAL-ASSETS>                                 385,089
<CURRENT-LIABILITIES>                           83,733
<BONDS>                                         75,588
                                0
                                          0
<COMMON>                                           200
<OTHER-SE>                                     221,101
<TOTAL-LIABILITY-AND-EQUITY>                   385,089
<SALES>                                              0
<TOTAL-REVENUES>                               362,715
<CGS>                                                0
<TOTAL-COSTS>                                  271,656
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               7,484
<INCOME-PRETAX>                                 30,309
<INCOME-TAX>                                     6,062
<INCOME-CONTINUING>                             25,125
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    25,125
<EPS-PRIMARY>                                     1.33<F1>
<EPS-DILUTED>                                     1.30
<FN>
<F1>AS RESTATED FOR SFAS NO. 128 "EARNINGS PER SHARE"
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM VERITAS DGC
INC.'S FORM 10-K FOR THE YEAR ENDED JULY 31, 1998 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FORM 10K.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          JUL-31-1996
<PERIOD-START>                             AUG-01-1995
<PERIOD-END>                               JUL-31-1996
<CASH>                                             327
<SECURITIES>                                         0
<RECEIVABLES>                                   65,447
<ALLOWANCES>                                       740
<INVENTORY>                                      1,659
<CURRENT-ASSETS>                                85,704
<PP&E>                                         165,104
<DEPRECIATION>                                  86,094
<TOTAL-ASSETS>                                 198,592
<CURRENT-LIABILITIES>                           63,225
<BONDS>                                         27,351
                                0
                                          0
<COMMON>                                           113
<OTHER-SE>                                     105,810
<TOTAL-LIABILITY-AND-EQUITY>                   198,592
<SALES>                                              0
<TOTAL-REVENUES>                               250,596
<CGS>                                                0
<TOTAL-COSTS>                                  198,711
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               5,466
<INCOME-PRETAX>                                  4,403
<INCOME-TAX>                                     2,009
<INCOME-CONTINUING>                              1,281
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,281
<EPS-PRIMARY>                                      .07<F1>
<EPS-DILUTED>                                      .07
<FN>
<F1>AS RESTATED FOR SFAS NO. 128 "EARNINGS PER SHARE"
</FN>
        

</TABLE>


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