1
                                                                    EXHIBIT 99.1


                              NUEVO ENERGY COMPANY
                               2001 FORECAST - WEB
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<Table>
<Caption>
                                                                                                         FORECAST
                                                 RESTATED ACTUAL       ACTUAL      -------------------------------------------------
                                                 3 MONTHS ENDED    3 MONTHS ENDED    3 MONTHS ENDED     3 MONTHS ENDED
                                                MARCH 31, 2001(5)  JUNE 30, 2001   SEPTEMBER 30, 2001  DECEMBER 31, 2001     2001
                                                -----------------  --------------  ------------------  -----------------  ----------

                                                                                                           
REVENUES:

Oil revenues ...................................... $  65,106        $  65,153         $  70,564           $  74,856      $ 275,679
Gas revenues ......................................    50,723           33,908            12,560              14,129        111,320
Liquids revenues ..................................     1,324            1,199               842                 782          4,147
Gain on sales of assets ...........................      (329)             198                --                  --           (131)
Interest and other income (1) .....................       705              241                77                  77          1,100
                                                    ---------        ---------         ---------           ---------      ---------
    Total revenues ................................ $ 117,529        $ 100,699         $  84,042           $  89,844      $ 392,114
                                                    ---------        ---------         ---------           ---------      ---------
COSTS & EXPENSES:

Lease operating expenses .......................... $  57,287        $  49,038         $  41,197           $  40,344      $ 187,867
Depreciation, depletion and amortization ..........    19,627           20,398            19,194              19,331         78,550
Exploration costs .................................     2,665            5,382             7,778               6,805         22,629
General and administrative expenses (2) ...........     7,276            9,229             7,581               7,796         31,882
Interest expense ..................................    11,135           10,449            10,373              10,861         42,818
TECONS - Dividends expense ........................     1,653            1,653             1,653               1,653          6,612
Other expense (1) .................................     1,793               99               322                 267          2,481
                                                    ---------        ---------         ---------           ---------      ---------
    Total expenses ................................ $ 101,436        $  96,248         $  88,099           $  87,056      $ 372,839
                                                    ---------        ---------         ---------           ---------      ---------

Net earnings before taxes ......................... $  16,093        $   4,451         $  (4,056)          $   2,788      $  19,275

Income Taxes:
    Current .......................................       560             (460)             (203)                139             37
    Deferred ......................................     5,923            2,252            (1,420)                976          7,731
                                                    ---------        ---------         ---------           ---------      ---------
Net Income (loss) ................................. $   9,610        $   2,659         $  (2,434)          $   1,673      $  11,508
                                                    =========        =========         =========           =========      =========



Earnings per share (diluted) ...................... $    0.57        $    0.14         $   (0.14)          $    0.10      $    0.67

    Discretionary Cash Flow (3) ................... $  39,324        $  30,829         $  23,157           $  28,823      $ 122,133
    Discretionary Cash Flow per share (diluted) ... $    2.31        $    1.80         $    1.34           $    1.67      $    7.13

EBITDAX (4) ....................................... $  51,494        $  42,135         $  34,942           $  41,437      $ 170,343

Weighted average common and dilutive potential
    common shares outstanding .....................    17,003           17,152            17,227              17,227         17,135


Prices:
    Oil ($/BBL) - Including hedges ................ $   15.71        $   15.44         $   16.78           $   17.74      $   16.42
    Oil ($/BBL) - reference price (NYMEX) ......... $   28.73        $   27.96         $   26.46           $   25.94      $   27.27
    Gas ($/MCF) ................................... $   13.26        $   11.46         $    3.79           $    4.11      $    8.23
    Gas ($/MCF) - reference price (NYMEX) ......... $    7.27        $    4.78         $    3.13           $    3.58      $    4.69

Production:
    Oil (MBBL) ....................................     4,144            4,220             4,204               4,220         16,787
    BBLS/D ........................................    46,045           46,366            45,696              45,865         45,992
    Gas (MMCF) ....................................     3,824            2,959             3,312               3,437         13,533
    MMCF/D ........................................        43               33                36                  37             37
    Liquids (MBBL) ................................        44               51                42                  40            177

MBOE - Including liquids ..........................     4,825            4,763             4,799               4,833         19,220

Lease Operating Expense per BOE ................... $   11.87        $   10.30         $    8.59           $    8.35      $    9.77

General & Administrative Expense per BOE .......... $    1.51        $    1.94         $    1.58           $    1.61      $    1.66

Fixed Charge Coverage Ratio .......................       4.0              3.5               2.9                 3.3            3.4

Long-term Debt .................................... $ 409,702        $ 409,702         $ 421,842           $ 448,599      $ 448,599

NOTES:

   (1) As a matter of policy, we will not provide guidance on other income,
       other expense, gain or loss on sales of assets, or gain or loss on
       derivatives, except as specifically noted.

   (2) In the 2Q01, G&A includes severance costs associated with the resignation
       of Nuevo's CEO.

   (3) Calculated as Net Income, plus Deferred Taxes, plus Exploration Costs,
       plus DD&A, less Gain on Sale of Assets plus Loss on Sale of Assets.
       Actual amounts may include additional cash flow adjustments not specified
       above, resulting in immaterial differences.

   (4) Calculated as Net Earnings before Taxes, plus Exploration Costs, plus
       Dividends on TECONS, plus Interest Expense, plus DD&A, less Gain on Sale
       of Assets, plus Loss on Sale of Assets. Actual amounts may include
       additional cash flow adjustments not specified above, resulting in
       immaterial differences.

   (5) Restated to reflect a change in accounting method for foreign crude oil
       inventory. The restatement affects oil revenues and price, LOE and DD&A
       for the period.
</Table>

   2


THIRD QUARTER 2001 FINANCIAL GUIDANCE

The estimates listed below contain assumptions which we believe are reasonable.
We caution that these estimates are based on currently available information as
of the date hereof. We are not undertaking any obligation to update these
estimates as conditions change or as additional information becomes available.

All of the estimates and assumptions set forth in this document constitute
forward-looking statements within the meaning of Section 27A of the Securities
Act of 1933, Section 21E of the Securities Exchange Act of 1934 and the Private
Securities Litigation Reform Act of 1995. Although we believe that these
forward-looking statements are based on reasonable assumptions, we can give no
assurance that our expectations will in fact occur and caution that actual
results may differ materially from those in the forward-looking statements. A
number of factors could affect our future results or the energy industry
generally and could cause our expected results to differ materially from those
expressed in this release. These factors include, among other things:

         -        Increases or decreases in oil and gas prices;

         -        Compliance with environmental regulations and other
                  governmental laws and regulations applicable to the oil and
                  gas industry;

         -        Unanticipated problems or successes encountered during the
                  exploration for and exploitation and production of oil and
                  gas;

         -        Political and economic events and conditions in the
                  jurisdictions in which we operate;

         -        Our hedging activities;

         -        Decisions we make regarding our debt and equity structure,
                  including the decision to issue additional capital stock or
                  debt securities;

         -        Our ability to deliver oil and gas to commercial markets;

         -        Changes in consumer demand;

         -        The impact of competition;

         -        The uncertainty of estimates of oil and gas reserves and
                  production rates;

         -        The impact of SFAS No. 133, "Accounting for Derivative
                  Instruments and Hedging Activities";

         -        The risk factors and other conditions described in the report
                  on Form 10-K for the year ended December 31, 2000, and in the
                  report on Form 10-Q for the quarter ended March 31, 2001.

These estimates also assume that we will not engage in any material transactions
such as acquisitions or divestitures of assets, formation of joint ventures or
sale of debt or equity securities. We continually review these types of
transactions as part of our corporate strategy, and may engage in any of them
without prior notice.


   3


CRUDE OIL PRODUCTION

We anticipate that our third quarter 2001 production will be between 4.0 and 4.4
million barrels (43,478 - 47,826 barrels per day) which incorporates downtime
for potential electrical interruptions, pump repairs, and scheduled field
maintenance. Of this third quarter 2001 volume, approximately 86% will be
derived from California, 13% from the Republic of Congo and 1% from other U.S.
However, weather, unexpected subsurface conditions, power supply disruptions and
other unforeseen operating hazards may have an adverse impact on Nuevo's
production volumes and better than expected development drilling results or
exploration success could have a positive effect.

CRUDE OIL PRICES

Realized crude oil prices for the third quarter 2001 are expected to be between
$16.00 and $17.50 Bbl. Realized prices are based on the current NYMEX WTI
futures price and are adjusted for the California crude oil sales contract, the
impact of hedges, and the price sharing agreements for our Point Pedernales and
Congo production.

o    Nuevo realizes approximately 72% of the NYMEX WTI price for California
     crude oil production, before hedges. About half of Nuevo's California crude
     oil production is considered heavy oil (15 degree API quality crude oil or
     heavier produced by thermal operations). The market price for California
     heavy crude oil differs from the established market indices for oil
     elsewhere in the U.S., due principally to the higher transportation and
     refining costs associated with heavy oil.

o    Nuevo realizes approximately 95% of the NYMEX WTI price for East Texas
     crude oil production, before hedges.

o    Nuevo realizes approximately 80% of the NYMEX WTI price for Congo crude oil
     production, before hedges. Nuevo's Congo production is a relatively heavy
     crude oil (16 - 20 degree API gravity) which is processed into low-sulfur,
     No. 6 fuel oil for sale to worldwide markets. The market for residual fuel
     oil differs from the markets for WTI and other benchmark crudes due to its
     primary use as an industrial or utility fuel versus the higher value
     transportation fuel component, which is produced from refining most grades
     of crude oil.

The price of crude oil is subject to large fluctuations in response to
relatively minor changes in the supply of and demand for crude oil, market
uncertainty and a variety of additional factors beyond Nuevo's control. Any
substantial or extended decline in the price of crude oil would have an adverse
effect on Nuevo.

PRICE RISK MANAGEMENT POLICY

Nuevo's price risk management policy was designed to accomplish the following
objectives: 1) to ensure sufficient capital for reserve replacement and 2) to
ensure fixed charge coverage ratios are maintained.

CRUDE OIL HEDGES

<Table>
<Caption>
SWAPS               VOLUME           WTI PRICE
- -----             ----------        -----------
                              
3Q01              20,000 B/D        $21.22 Bbl.
4Q01              15,500 B/D        $22.95 Bbl.
1Q02              12,500 B/D        $25.91 Bbl.
</Table>

<Table>
<Caption>
FLOORS              VOLUME           WTI PRICE
- ------            ----------        -----------
                              
2Q02              19,000 B/D        $22.00 Bbl.
3Q02              14,000 B/D        $22.00 Bbl.
4Q02              14,000 B/D        $22.00 Bbl.
</Table>


   4


For a swap transaction, we receive a fixed price for our production and pay the
counter party a floating price based on a market index. For a floor (purchased
put), we receive the floor price if the floating price falls below the floor
price. Swaps fix the price we receive for production, while floors establish a
minimum price.

NATURAL GAS PRODUCTION

We anticipate that our third quarter 2001 production will be between 3.0 and 3.6
Bcf (32.6 MMcfd - 39.1 MMcfd) which incorporates a reduction in natural gas
volume due to a delay in the mobilization of a drilling rig offshore California
and downtime associated with the replacement of the carbon dioxide unit at the
Rincon Onshore Separation Facility (ROSF). Of this third quarter 2001 volume,
approximately 88% will be derived from California and 12% from other U.S.
However, weather, unexpected subsurface conditions, and other unforeseen
operating hazards may have an adverse impact on our production volumes and
better than expected development drilling results or exploration success could
have a positive effect.

NATURAL GAS PRICES

Realized gas prices for the third quarter 2001 are expected to be between $3.50
and $4.10 Mcf based on our assumption regarding the California price
differential versus the current NYMEX strip price. In July, the California basis
differential narrowed significantly versus the first half 2001. For the third
quarter 2001, our realized gas price estimate assumes a more normalized
California basis differential.

The price of natural gas is subject to large fluctuations in response to
relatively minor changes in the supply of and demand for natural gas, market
uncertainty and a variety of additional factors beyond Nuevo's control. Natural
gas prices have been high recently, especially in the California market. No
assurances can be made that they will remain at current levels.

CALIFORNIA NATURAL GAS MARKET VOLATILITY

Nuevo continues to work to optimize the use of its gas reserves in a very
volatile California gas market. The Company projects that it will produce more
natural gas than it will consume in 2001. Beginning in mid-December 2000 and
continuing into the first half 2001, Nuevo reduced its gas consumption related
to cyclic steaming operations for higher steam-oil ratio (SOR) wells in order to
capture robust California spot gas prices. With the recent dramatic decline in
California gas prices, Nuevo has restarted its cyclic steaming operations in
August, thereby reducing the amount of gas sold in the market. Should these
lower California gas prices continue to hold, Nuevo will consider restarting its
steam drive operations.

NATURAL GAS HEDGES

Nuevo does not have any of its natural gas production hedged.

LIQUIDS

We anticipate that our third quarter 2001 production will be between 41,000 and
43,000 barrels (446 and 467 barrels per day). Historically, the estimated
realized price for liquids is approximately 80% of the NYMEX WTI price. The same
factors that affect our oil and gas production and pricing can also have an
effect on the production and pricing of liquids.


   5


THIRD QUARTER 2001 TOTAL PRODUCTION

We anticipate that our third quarter 2001 production will be between 4.5 and 5.1
million BOE with 88% crude oil. However, our production volumes are subject to
curtailments, delays, and cancellations as a result of a lack of capital or
other problems such as: weather, compliance with governmental regulations or
price controls, electrical shortages, mechanical difficulties or shortages or
delays in the delivery of equipment. Changes to the capital budget (i.e. dollar
amount and projects) and exploratory drilling success will also have an impact
on production volumes.

2001 TOTAL PRODUCTION

We anticipate that total production for 2001 will be between 18.8 and 19.6
MMBOE. This estimate incorporates Nuevo's assessment of the duration of the
production shut-in resulting from the failure of a carbon dioxide treatment
vessel at the Rincon Onshore Separation Facility (ROSF) located in Ventura
County, California.

LEASE OPERATING EXPENSE (INCLUDES PRODUCTION AND AD VALOREM TAXES)

Nuevo uses natural gas to generate steam for its thermal production. Due to high
California gas costs and a reduction in steam usage which impacted production,
first half 2001 LOE averaged $11.09 BOE. We expect the third quarter 2001 LOE to
be between $8.20 and $9.00 BOE due to lower California gas prices combined with
the restarting of cyclic steaming in August.

DEPRECIATION, DEPLETION AND AMORTIZATION

We anticipate that the DD&A rate for the third quarter 2001 will be between
$3.90 and $4.10 BOE. Our forecasted DD&A rate has been revised downward based on
estimated SEC reserves at June 30, 2001.

EXPLORATION COSTS

We caution that this is an inherently difficult expense category to estimate and
that this estimate can be volatile due to the number of wells drilled, completed
and the success rate in any given quarter and any potential changes to the
capital budget. Exploration expenses for the third quarter 2001 should be
between $6.5 million and $9.0 million.

GENERAL AND ADMINISTRATIVE EXPENSE

We anticipate that the G&A rate for the third quarter 2001 will be between $1.45
and $1.70 BOE. The factor that could have the greatest impact on G&A is the mark
to market accounting for Nuevo's deferred compensation plan which is based on
the price of Nuevo common stock. As a matter of policy, Nuevo accrues target EVA
bonuses on a quarterly basis which may not represent actual results at year-end.

INTEREST EXPENSE

We anticipate that our interest expense for the third quarter 2001 will be
between $10.0 million and $10.8 million.

TERM CONVERTIBLE SECURITIES (TECONS) - DIVIDEND EXPENSE

We expect our third quarter 2001 TECONS dividend expense to be $1.65 million.

INCOME TAXES

We expect our effective income tax rate for the third quarter 2001 to be 40%
(inclusive of applicable federal and state taxes) and our deferred tax ratio to
be 87%.


   6


WEIGHTED AVERAGE COMMON AND DILUTIVE POTENTIAL COMMON SHARES OUTSTANDING

Nuevo repurchases its common shares under a Board authorized share repurchase
program. As of June 30, 2001, approximately 7,700 shares remained authorized for
repurchase at management's discretion under the existing authorization. On
February 12, 2001, the Board authorized the repurchase of an additional 1
million shares of Nuevo common stock. While the Company's policy is not to
comment on the status of the share repurchase program until the authorization is
exhausted or when quarterly financial statements are published, the weighted
average shares shown for these forecast periods are updated for material changes
in share balances through the forecast date which includes share repurchases and
options in the money. No future anticipated share repurchases are included in
the forecast.

CAPITAL EXPENDITURES

We expect base capital expenditures for 2001 to be approximately $160 million.
This figure does not include deferred acquisition costs, expected to be $8-$12
million depending on final 2001 production levels and average 2001 field price
realizations on certain of our California properties, arising from a contingent
payment agreement entered into upon the acquisition of the affected properties,
as disclosed in our filings since the acquisition. Pursuant to Generally
Accepted Accounting Principles, such payment will be accrued as capital in the
fourth quarter once the size of the payment is finally determined. It is
expected to be paid in the first quarter of 2002.

Depending on the level of drilling success this year, capital expenditures could
be increased by approximately $18 million in 2001. Some of the factors impacting
the level of capital expenditures include crude oil and natural gas prices as
well as the volatility in these prices, the cost and availability of oilfield
services, exploratory drilling success, acquisitions and divestitures and the
level and availability of external financing.

SFAS NO. 133

Nuevo expects that SFAS No. 133 will primarily increase the volatility of other
comprehensive income and results of operations. In general, the amount of
volatility will vary with the level of derivative activities during any period.
Nuevo will not provide guidance on this item.