U.S. DEPARTMENT OF THE INTERIOR 

U.S. GEOLOGICAL SURVEY

THE CONTRIBUTION OF GIANT FIELDS TO UNITED 

STATES OIL PRODUCTION AND RESERVES

by

James W. Schmoker

Open-File Report 99-131

This report is preliminary and has not been reviewed for conformity with U.S. Geological 

Survey editorial standards or with the North American Stratigraphic Code. Any use of 

trade, product or firm names is for descriptive purposes only and does not imply 

endorsement by the U.S. Government.

U.S. Geological Survey, Mail Stop 939, 

Denver Federal Center, Denver, CO 80225

1999
INTRODUCTION

In the U.S., an oil field is regarded as "giant" if the sum of cumulative production and 

remaining (proved) reserves exceeds 100 million barrels of oil (mmbo). Giant fields account for 

a very small fraction of the total number of oil fields discovered in the U.S., but their importance 

to U.S. production - past and future - vastly exceeds their numerical proportion.

This report presents and interprets production and reserves data for giant U.S. oil fields, 

for the purpose of better understanding and forecasting U.S. oil production and the U.S. resource 

base. The primary data used here are arranged by location in two tables. Table 1 provides data 

for giant U.S. oil fields as of 1/1/98: this table contains field name and location; year of 

discovery; annual production in 1997; cumulative production, remaining reserves, and the sum of 

these two quantities (estimated total recovery) as of 1/1/98; and the ratio of remaining reserves to 

1997 annual production. Table 2 lists those fields of Table 1 for which production and reserves 

data were also published in 1990: this table introduces columns for cumulative production, 

remaining reserves, and estimated total recovery as of 1/1/90; and the change in estimated total 

recovery between 1/1/90 and 1/1/98.

The data of Table 1 offer a snapshot of production and reserves characteristics of giant 

fields at one point in time. The estimated size (cumulative production plus proved reserves) of 

an oil field can change significantly over a relatively short time span because proved reserves are 

dependent upon factors that do not remain constant: the data of Table 2 capture changes in the 

sizes of many of these giant fields in the first eight years of the 1990's.

PRODUCTION AND RESERVES AS OF 1/1/98

The list of giant U.S. oil fields presented in Table 1, derived from the International 

Petroleum Encyclopedia (1998), is probably not exhaustive but appears to be reasonably 

complete. The implicit assumption is made here that Table 1 is sufficiently inclusive to warrant 

analysis. Table 1 could be incomplete due to: 1) the general vagaries of data collection and data 

bases; 2) omission of older fields that recently attained giant-field status; and 3) omission of 

recently discovered large fields.

Perspectives

The 293 giant U.S. oil fields, of which 16 have estimated total recoveries exceeding 1 

billion barrels of oil (bbo), account for about 58% of the discovered oil in the U.S., and for 59% 

of cumulative U.S. oil production (Figure 1). These fields have contributed substantially to the 

economic development of the U.S.

As of 1/1/98, the estimated total recovery of oil from all giant fields in the U.S. was 113.1 

bbo (Figure 1), which is roughly equivalent to that of Iran or Kuwait (see Masters and others, 

1994). Only the Former Soviet Union has produced more oil (128.1 bbo) than the 101.8 bbo 

produced from giant U.S. oil fields (International Petroleum Encyclopedia, 1998). The giant 

U.S. oil fields, of themselves, would constitute a world-class oil "country".

The median discovery year for giant U.S. oil fields is 1935, and 90% of their recoverable 

oil has been produced (Figure 1). Their median and average ratios of remaining oil reserves to 

annual oil production are low. These data show that the giant oil fields of the U.S. form a mature

1
producing sector. However, production from these fields is still significant, even on a world 

scale. Production from giant U.S. oil fields averaged 3.65 mmbo/day in 1997, which is equal to 

57% of daily U.S. oil production (Figure 1) and is a rate exceeded worldwide only by Saudi 

Arabia and the Former Soviet Union (International Petroleum Encyclopedia, 1998).

Fields Having Significant Remaining Potential

The previous discussion did not differentiate between giant fields which have significant 

remaining potential and those which appear to be in terminal decline. The former fields 

represent the future of the group; the latter fields have become, at a National perspective, part of 

history.

The remaining potential of giant U.S. oil fields is evaluated here on the basis of 

remaining reserves (as of 1/1/98) and annual production (in 1997). Figure 2 shows that, for both 

measures of remaining potential, relatively few fields account for most of the oil.

Fifty percent of 1997 annual production from all giant U.S. oil fields came from just 11 

fields and 80% was supplied by 55 fields (Figure 2A). The distribution of remaining reserves is 

yet more uneven. As of 1/1/98, 50% of remaining reserves in all giant U.S. oil fields resided in 

just six fields and 80% was accounted for by 42 fields (Figure 2B).

Using the somewhat arbitrary criteria that giant fields having significant remaining 

potential are those that account for either 80% of total annual production or 80% of total 

remaining reserves, 59 giant U.S. oil fields are identified here as having significant remaining 

potential (Table 3). Of these, 38 fields qualify with respect to both annual production and 

remaining reserves.

The giant U.S. oil fields having significant remaining potential (Table 3) form a diverse 

group. They are distributed among 10 states, although most are located in Texas, California, and 

Louisiana (Figure 3). Common geologic features among these fields, other than access to an 

excellent oil-charge system, are not obvious, nor are they obvious for giant U.S. oil fields in 

general.

Field-Size and Oil-Volume Distributions

The field-size distribution of the 293 giant U.S. oil fields listed in Table 1 is extremely 

skewed (Figure 4A). The coefficient of skewness is 9.1. (A skewness coefficient greater than 

1.0 is commonly considered to indicate a highly skewed distribution.) Note that the eye tends to 

be fooled by Figure 4A: the logarithmic size-category axis, necessary to construct a legible 

figure, greatly foreshortens the larger field-size categories and thus reduces the apparent 

skewness.

One hundred and fifty-one fields (almost 52%) have sizes between 100 and 200 mmbo, 

whereas only eight fields (about 3%) have sizes in the much larger range between 1,600 and 

12,800 mmbo (Figure 4A). The biggest field of the group (Prudhoe Bay) is about 65 times larger 

than the median field of 194 mmbo. If this ratio were to be applied to the height of humans, a 

median adult height of 5.5 feet would imply the existence of people as tall as 358 feet.

Approximately equal volumes of oil are attributed to field-size categories 1, 2, and 3 

(Figure 4B). The volume of oil ascribed to field-size categories 4 through 7 tends to decrease as
size category increases. (Data for size categories 6 and 7 are erratic because each category 

contains only one field.)

The U.S. is the most thoroughly explored large petroleum region in the world. As such, 

the field-size and oil-volume distributions for discovered giant U.S. oil fields (Figure 4) might 

provide as close an approximation to a natural (in situ) population of such fields as is presently 

known. For this reason, the distributions of Figure 4 could have value as analogs for some of the 

less explored regions of the world.

CHANGES IN FIELD SIZES BETWEEN 1/1/90 AND 1/1/98

The sizes (estimated total recoveries) of U.S. oil fields commonly change over time, in 

response to a large number of geological, technical, economic, and regulatory factors (e.g., 

Arrington, 1960; Attanasi and Root, 1994; Gautier and others, 1995; Schmoker and Crovelli, 

1998). Recent changes in the sizes of 209 giant U.S. oil fields (of the 293 fields considered in 

the previous sections) can be examined here, using the production and reserves data as of 1/1/90 

that are provided in Table 2.

Field-Size Changes Measured as Percentages

The great majority (96%) of the fields listed in Table 2 were 20 or more years old at the 

beginning of 1990; about two-thirds were discovered prior to 1941 (Figure 5). Almost all the 

fields are well past the period of initial development in which large changes in estimated total 

recovery can be expected to occur as a field is delineated and production practices are optimized. 

All U.S. fields are subject to a standard system for reporting remaining reserves, which 

minimizes capricious field-size changes. One might therefore think that after many years of 

development and production, the remaining potential of most of these giant oil fields should be 

well established, but Figure 6 shows that this is not the case.

Of the 209 fields in the data set of Table 2, the size of only 30 fields (14%) remained 

essentially unchanged on a percentage basis (larger or smaller by 0.5% or less) between 1/1/90 

and 1/1/98 (Figure 6A). Sixty-five fields (31%) increased or decreased in size by 0-.5 to 4% in 

this eight-year period, 52,6^^ (25%) changed in size by 4 to 10%, and 62 fields (30%) changed 

in size by more than 10%. (These percentage changes are relative to 1/1/90 sizes.) From these 

data it is apparent that significant adjustments in estimated total recovery have been the norm, 

and not the exception, for giant U.S. oil fields in the first eight years of the 1990's.

Furthermore, Figure 6A shows that field-size increases outnumbered field-size decreases 

by more than two to one. Excluding the 30 fields with little percentage change, 126 fields 

increased in size whereas 53 fields decreased in size.

Production and reserves data as of 1/1/90 are available for 48 of the 59 giant U.S. oil 

fields having significant remaining potential. The percent-change distribution for these 48 fields 

(Figure 6B) is weighted more heavily to the right than the distribution for the entire group of 

giant fields (Figure 6A). Of the fields with significant remaining potential, the size of seven 

fields remained essentially unchanged on a percentage basis, 37 fields increased in size, and only 

four fields decreased in size (Figure 6B). More than half of these fields (54%) increased in size 

by over 10%.
The group of giant U.S. oil fields having significant remaining potential has been buoyed 

by large recent increases (1/1/90 - 1/1/98) in field sizes (Figure 6B). These large field-size 

increases could be the result of high annual production rates; conversely, large field-size 

increases could drive annual production rates. Cause and effect are here complexly interwoven.

Field-Size Changes Measured as Barrels of Oil

Of the 209 giant U.S. oil fields in the data set of Table 2, the size of 29 fields (14%) 

increased or decreased by only 1 rnmbo or less between 1/1/90 and 1/1/98 (Figure 7A). Sixtyseven fields (32%) increased or decreased in size by 1 to 10 rnmbo in this eight-year period, 73 

fields (35%) changed in size by 10 to 40 rnmbo, and 40 fields (19%) changed in size (larger or 

smaller) by more than 40 rnmbo. Changes in estimated total recovery of tens of millions of 

barrels were common for giant U.S. oil fields in the first eight years of the 1990's (Figure 7A).

The distribution of Figure 7 A is weighted toward the right, indicating that field-size 

increases have added substantially more oil than has been lost by field-size decreases. A number 

of giant U.S. oil fields have had extraordinarily long reserves lives and are declining at rates 

below expectations, largely because of the tendency for their estimated total recoveries to 

increase with time (Hatcher and Tussing, 1997).

The net change in estimated total recovery of the 209 giant U.S. oil fields contributing to 

Figure 7A (that is, the sum of the 209 individual field-size changes) is an increase of 5,896 

rnmbo. This volume is equal to 2.5 years of U.S. oil production, assuming average daily 

production at the 1997 rate of 6.40 mmbo/day (Figure 1).

Of the 48 giant U.S. oil fields having significant remaining potential that are contributing 

to Figure 7B (a subset of the 59 fields of Table 3), 35 (73%) increased in size by more than 20 

rnmbo in the first eight years of the 1990's. The net change in estimated total recovery of these 

48 fields is an increase of 6,439 rnmbo (compared to a net increase of 5,896 rnmbo for the parent 

set of 209 giant fields).

As shown in Figure 7B, the size of two fields having significant remaining potential 

increased by more than 1,000 rnmbo between 1/1/90 and 1/1/98: these Alaskan fields are 

Prudhoe Bay (2,631 rnmbo) and Kuparuk River (1,094 rnmbo). The 12 fields of Figure 7B with 

field-size increases between 100 and 1,000 rnmbo ar° M^T vay-Sunset (440 rnmbo, California), 

Wasson (288 rnmbo, Texas), Belridge S. (268 rnmbo, California), Spraberry Trend (201 rnmbo, 

Texas), Slaughter (176 rnmbo, Texas), Endicott (153 mmbo, Alaska), Seminole (148 mmbo, 

Texas), Levelland (130 mmbo, Texas), Rangely (117 mmbo, Colorado), Sho-Vel-Tum (115 

mmbo, Oklahoma), Giddings (113 mmbo, Texas), and Cowden N. (111 mmbo, Texas). At the 

other extreme, East Texas field (Texas) decreased in size by 616 mmbo, and Elk Hills field 

(California) decreased by 65 mmbo.

Field-Size Changes by Location

Regional differences in patterns of field-size changes exist among the 209 giant U.S. oil 

fields of Table 2 (Figure 8). The giant fields of five areas had a net increase in estimated total 

recovery between 1/1/90 and 1/1/98, whereas the giant fields of four areas had a net decrease 

(Figure 8). The North Slope of Alaska provided the largest net increase, followed by the 

Permian Basin of West Texas and New Mexico, the San Joaquin Basin of southern California,
and basins of the Midcontinent. The Los Angeles Basin and coastal areas of California (area 5) 

showed a positive but relatively insignificant net change in estimated total recovery.

Each of the three areas that encompass the U.S. Gulf Coast (areas 6, 7, and 9) had net 

decreases in estimated total recovery of giant fields (Figure 8). The net change in area 9 would 

be negative even if the East Texas field (which decreased in size by 616 mmbo) were excluded. 

In the Rocky Mountains (area 8), only three of 19 giant fields decreased in size, but these 

decreases were large enough to place the area into the negative-change category.

Producing areas within the U.S. differ from one another with respect to factors affecting 

field-size changes, such as geologic characteristics, oil-field practices, and perhaps reservesreporting patterns. Figure 8 illustrates how these differences can lead to very dissimilar regional 

perceptions of the volume of discovered but yet-to-be-produced oil in the U.S.

SUMMARY

1. In the U.S., a giant oil field is one whose size exceeds 100 mmbo. This study examines 293 

giant fields (Table 1), using data as of 1/1/98. Recent changes in the sizes of 209 of these 

fields (Table 2) are also investigated, using production and reserves data as of 1/1/90.

2. Giant oil fields are still important to the U.S. energy picture (Figure 1). Average daily 

production in 1997 from giant fields was 3.65 mmbo/day (57% of total U.S. oil production), 

and remaining reserves were 11.3 bbo (50% of total U.S. remaining oil reserves).

3. Among the 293 giant U.S. oil fields, 59 fields account for 80% of total annual production (in 

1997) and 80% of total remaining reserves (as of 1/1/98). These 59 fields (Table 3) are 

identified here as giant fields having significant remaining potential.

4. The field-size distribution of giant U.S. oil fields (Figure 4), which provides a possible

analog for some less explored regions of the world, is highly skewed. One hundred and fiftyone fields have sizes between 100 and 200 mmbo, whereas only eight fields have sizes in the 

much larger range between 1,600 and 12,800 mmbo.

5. Although the median discovery year of giant U.S. oil fields is 1935, changes in field size 

(larger or smaller) of tens of millions of barrels were common between 1/1/90 and 1/1/98. 

The number of fields that increased in size outnumbered those that decreased in size by more 

than two to one (Figures 6, 7).

6. Changes in individual field sizes in the first eight years of the 1990's were highly 

variable. Some of this variability is related to regional location (Figure 8). Overall, the 

estimated total recovery of the 209 giant U.S. oil fields for which necessary data are available 

for analysis increased by 5,896 mmbo, equal to about 2.5 years of current U.S. oil 

production. The estimated total recovery of a subset of 48 giant fields having significant 

remaining potential increased by 6,439 mmbo.
REFERENCES CITED

Arrmgton, J.R., 1960, Predicting the size of crude reserves is key to evaluating exploration 

programs: Oil & Gas Journal, v.58, no. 9 (February 29), p. 130-134.

Artanasi, E.D., and Root, D.H., 1994, The enigma of oil and gas field growth: American 

Association of Petroleum Geologists Bulletin, v. 78, no. 3, p. 321-332.

Gautier, D.L., Dolton, G.L., Takahashi, K.I., and Varnes, K.L., eds., 1995, 1995 National

assessment of United States oil and gas resources - Results, methodology, and supporting 

data: U.S. Geological Survey Digital Data Series DDS-30.

Hatcher, D.B., and Tussing, A.R., 1997, Long reserves lives sustain prospects for independents in 

the U.S. lower 48: Oil & Gas Journal, v. 95, no. 46 (November 17), p. 49-59.

International Petroleum Encyclopedia, 1990, U.S. fields with reserves exceeding 100 million bbl 

(data table): Tulsa, OK, PennWell Publishing Co., 378 p.

International Petroleum Encyclopedia, 1998, U.S. fields with ultimate oil recovery exceeding 100 

million bbl (data table): Tulsa, OK, PennWell Publishing Co., [CD-ROM].

Masters, C.D., Artanasi, E.D., and Root, D.H., 1994, World petroleum assessment and analysis: 

Proceedings of the 14th World Petroleum Congress, Chichester, England, John Wiley and 

Sons, v. 5, p. 529-541.

Schmoker, J.W., and Crovelli, R.A., 1998, A simplified spreadsheet program for estimating future 

growth of oil and gas reserves: Nonrenewable Resources, v. 7, no. 2, p. 149-155.
	General

 Number and estimated total oil recovery of all giant fields: 293 fields, 113.1 bbo

 Number and estimated total oil recovery of giant fields >1 bbo: 16 fields, 42.4 bbo

 Estimated total U.S. oil recovery: 195.6 bbo

 Median discovery year of giant fields: 1935

 Median size of giant fields: 194 mmbo

 Average size of giant fields: 386 mmbo

Annual and Cumulative Production

 Average daily oil production in 1997 from all giant fields: 3.65 mmbo/day

 Average daily U.S. oil production in 1997: 6.40 mmbo/day

 Average daily U.S. oil consumption in 1996: 17.40 mmbo/day

 Cumulative oil production from all giant fields: 101.8 bbo

 Cumulative U.S. oil production: 173.2 bbo

Remaining Reserves

 Remaining (proved) oil reserves in all giant fields: 11.3 bbo

 Remaining (prove !) T. T S. oil reserves: 22.4 bbo

 Median remaining oil reserves/annual oil production ratio of giant fields: 5.7 years

 Average remaining oil reserves/annual oil production ratio of giant fields: 8.3 years

 Average remaining U.S. oil reserves/annual U.S. oil production ratio: 9.6 years

Figure 1. Numerative overview of giant U.S. oil fields (fields larger than 100 mmbo) as of 1/1/98. 

Data are from Table 1 and International Petroleum Encyclopedia (1998). 

[mmbo = million barrels of oil. bbo = billion barrels of oil.]
100

50 100 150 200 250 

GIANT-OIL-FIELD RANK BY ANNUAL PRODUCTION

300

B

;£

UJ

O

50 100 150 200 250 

GIANT-OIL-FIELD RANK BY REMAINING RESERVES

300

Figure 2. Cumulative percent of total annual production in 1997 (A) and of total remaining 

reserves as of 1/1/98 (B) for giant U.S. oil fields. Data are from Table 1.
New Mexico

Louisiana

California

Texas

10 15 

NUMBER OF FIELDS

20

Figure 3. Locations of giant U.S. oil fields having significant remaining potential. 

These fields are defined and listed in Table 3.
100-200

200-400

400-800

800-1600

1600-3200

3200-6400

6400-12800

FIELD-SIZE CATEGORY

2345 

FIELD-SIZE CATEGORY

Figure 4. Number of fields (A) and volume of oil (estimated total recovery as of 1/1/98) 

(B) by field-size category, for giant U.S. oil fields. Data are from Table 1.

10
0!

<

LLJ

LU

O 

O 

CO

O

10 15 20 25 »« - .~~---

NUMBER OF FIELDS

30 35

Figure 5. Discovery year of giant U.S. oil fields for which production and reserves 

data as of 1/1/90 and 1/1/98 are available. Data are from Table 2.

11
UJ 

Li. 

LL. 

O

X. 

Ul 

CO

-69 -30 -25 -20 -15 -10 -6 -4 -2 -.5 .5 2 4 6 10 15 20 25 30 73

CHANGE IN FIELD SIZE (PERCENT)

B

CO 

0

UJ 

LL. 

LL. 

O

QL 

LU 

CQ

-30 -25 -20 -15 -10 -6 -4 -2 -.5 .52 4 6 10 15 20 25 30 73 

CHANGE IN FIELD SIZE (PERCENT)

Figure 6. Number of giant U.S. oil fields (A) and number of giant U.S. oil fields having 

significant remaining potential (B) by change in field size - measured in percent - from 

1/1/90 to 1/1/98. Data are from Tables 2 and 3.

12
A

35 -T 

30 -

S 25- _j

UJ

t 20- 

O

S 15-

m

D 10

z 

5-

0 -

0

3

V"»f»**"

8

' S

16

I y

12

9

" 2

29

 

.

24

6

I :

, 4?

9 ;

!

28

n

'

26

u j^

- j:

19

\ 

i

'v « I "

2

;"***

-1000-100-40 -20 -10-5-1 1 5 10 20 40 1001000

-2700

CHANGE

2700

IN FIELD SIZE (MMBO)

B

CO 

Q

_J 

UJ

u_ 

O 

X.

UJ 

CD

-1000-100-40-20 -10-5-1 1 5 10 20 401001000 

-2700 2700

CHANGE IN FIELD SIZE (MMBO)

Figure 7. Number of giant U.S. oil fields (A) and number of giant U.S. oil fields having 

significant remaining potential (B) by change in field size - measured in million barrels 

of oil - from 1/1/90 to 1/1/98. Data are from Tables 2 and 3.

13
5000 -I

0 4000 CD

S

tt

8!

0 3000 -

UJ

3

O

0 2000 -

UJ

CO

UJ

z 1000 -

UJ

0

z

X 

O

uj o -

-1000

AREA DESCRIPTION NO. OF FIELDS

1 Alaska 8(1)

2 West Texas (Dist. 8, 8A), New Mexico 39 (3)

3930 3 California - San Joaquin 19(9) 

~+.,.*-+ > 4 Midcontinent - IL, KS, OK, TX (Dist. 10) 23(0)

-, 5 California - Coastal, L.A. Basin 24(16)

~ 3 6 Southeast -AL.AR, FL, LA (N., S.), MS 34(8) 

_ Jj 7 Louisiana - Offshore 17(9) 

mmmam s Rocky Mountains - CO, MT, ND, UT, WY 19(3) 

^^B 9 E., SE. Texas (Dist. 2, 3, 4, 5, 6, 7C) 26(15)

j^HRH5 1705

Up: - \

^FK " 

B 72°

B ' ' * *' 1 381

Bt --- -n^n 

 ^| 19 -23 -54 -123 -659

' ' * 4^Ei^fc1 2 3 4 5 6 7 8 j; 9

AREA ^^B|

Figure 8. Net change in estimated total recovery from 1/1/90 to 1/1/98 by areas of the 

U.S., for giant U.S. oil fields. Data are from Table 2. Column for number of fields shows 

total number and number that declined in size (in parenthesis).

14
Table 1. U.S. oil fields having estimated total recovery exceeding 100 million barrels of oil (mmbo). [Data are from 

International Petroleum Encydopedia (1998). Production and reserves are in mmbo. Estimated total recovery = cumulative 

production plus remaining reserves. Res./Prod. = ratio of remaining reserves to 1997 production.]

Field Location Discovery Production Cum. Production Rem. Reserves Est. Total Recovery Res./Prod. 

Year in 1997 as of 1/1/98 as of 1/1/98 as of 1/1/98 (years)

1 Citronelle

2 Endicott

3 Granite Point

4 Kuparuk River

5 Lisburne

6 McArthur River

7 Mid. Ground Shoal

8 Milne Point

9 Point Mclntyre

10 Prudhoe Bay

1 1 Swans on River

12 Magnolia

13 Smackover

14 Belridge N.

15 Belridge S.

16 Buena Vista

17 Coalinga

1 8 Coalinga Nose

19 Coles Levee N.

20 Cuyama S.

21 Cymric

22 Edison

23 Elk Hills

24 Fruitvale

25 Greeley

26 Kern Front

27 Kern River

28 Kettleman N. Dome

29 Lost Hills

30 Midway-Sunset

31 Mount Poso

32 Rio Bravo

33 Round Mountain

34 Yowlumne

35 Carpinteria

36 Cat Canyon E., W.

37 Dos Cuadras

38 Hondo

39 Orcutt

40 Pescado

41 Point Arguello

42 Rincon

43 San Ardo

44 Santa Maria Valley

45 South Mountain

46 Ventura

47 Beta

48 Beverly Hills

49 Brea-Olinda

50 Coyote E.

51 Dominguez

52 Huntington Beach

53 Inglewood

54 Long Beach

55 Montebello

56 Richfield

57 San Miguelito

Alabama

Alaska

Alaska

Alaska

Alaska

Alaska

Alaska

Alaska

Alaska

Alaska

Alaska

Arkansas

Arkansas

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

1955

1978

1965

1969

1967

1965

1962

1969

1988

1968

1957

1938

1922

1912

1911

1909

1890

1938

1938

1949

1909

1928

1911

1928

1936

1912

1899

1928

1910

1894

1926

1937

1927

1974

1966

1908

1969

1969

1901

1969

1981

1927

1947

1934

1916

1919

1976

1900

1880

1909

1923

1920

1924

1921

1917

1919

1931

1.157

21.000

2.000

96.000

3.000

5.000

2.000

19.000

59.000

251.000

1.000

0.330

1.570

1.649

42.848

0.886

9.732

0.233

0.225

0.254

13.847

0.816

20.529

0.471

0.158

2.047

48.746

0.113

11.520

60.692

1.075

0.039

0.273

1.101

0.768

0.919

2.712

16.49 r

0.766

15.161

10.563

1.006

4.629

0.382

0.730

5.191

3.009

1.395

1.382

0.381

0.348

3.682

2.457

1.683

0.271

0.399

0.967

159.4

358.0

130.0

1484.0

119.0

586.0

178.6

85.0

212.0

9507.0

224.4

165.8

574.4

106.4

1108.6

659.2

849.3

503.9

163.1

221.5

294.2

141.8

1119.3

120.2

114.4

193.3

1618.8

458.0

266.2

2360.1

291.5

116.6

98.7

106.2

99.0

298.0

241.8

- 157.8

172.5

57.4

123.2

156.4

447.2

204.2

152.4

945.3

73.0

135.5

398.4

112.7

273.7

1099.5

365.6

926.0

195.7

197.6

109.6

4.4

170.0

16.0

1111.0

32.0

44.0

12.0

223.0

241.0

3042.0

11.0

2.6

4.7

10.1

272.3

18.5

57.1

4.5

1.6

3.5

68.6

4.6

288.6

5.9

0.8

23.6

329.0

2.3

51.9

332.7

30.4

0.3

2.1

11.0

9.7

22.0

15.0

121.4

5.5

51.7

160.7

3.6

82.8

14.4

4.6

66.8

140.5

12.1

40.3

9.1

3.1

38.6

26.7

18.6

6.3

5.3

28.4

163.8

528.0

146.0

2595.0

151.0

630.0

190.6

308.0

453.0

12549.0

235.4

168.4

579.1

116.5

1380.9

677.7

906.4

508.4

164.7

225.0

362.8

146.4

1407.9

126.1

115.2

216.9

1947.8

460.3

318.1

2692.8

321.9

116.9

100.8

117.2

108.7

320.0

256.8

279.2

178.0

109.1

283.9

160.0

530.0

218.6

157.0

1012.1

213.5

147.6

438.7

121.8

276.8

1138.1

392.3

944.6

202.0

202.9

138.0

3.8

8.1

8.0

11.6

10.7

8.8

6.0

11.7

4.1

12.1

11.0

7.9

3.0

6.1

6.4

20.9

5.9

19.3

7.1

13.8

5.0

5.6

14.1

12.5

5.1

11.5

6.7

20.4

4.5

5.5

28.3

7.7

7-7

10.0

12.6

23.9

5.5

7.4

7.2

3.4

15.2

3.6

17.9

37.7

6.3

12.9

46.7

8.7

29.2

23.9

8.9

10.5

10.9

11.1

23.2

13.3

29.4

15 Table 1
Field Location Discovery Production Cum. Production Rem. Reserves Est. Total Recovery Res./Prod. 

Year in 1997 as of 1/1/98 as of 1/1/98 as of 1/1/98 (years)

58 Santa Fe Springs Cal.-LA. Basin

59 Seal Beach Cal.-L.A. Basin

60 Torrance Cal.-L.A. Basin

61 Yorba Linda Cal.-L.A. Basin

62 Wilmington Cal.-L.A. Basin

63 Rangely Colorado

64 Jay Florida

65 Clay City Illinois

66 Dale Consolidated Illinois

67 Lawrence Illinois

68 Louden Illinois

69 Main Illinois

70 New Harmony Illinois

71 Salem Illinois

72 Bemis-Shutts Kansas

73 Chase-Silica Kansas

74 El Dorado Kansas

75 Hall-Gurney Kansas

76 Kraft-Prusa Kansas

77 Trapp Kansas

78 Bay Marchand 2 Louisiana-Off.

79 Breton Sound 20 Louisiana-Off.

80 Eugene Island 126 Louisiana-Off.

81 Eugene Island 175 Louisiana-Off.

82 Eugene Island 276 Louisiana-Off.

83 Eugene Island 330 Louisiana-Off.

84 Garden Banks 426 Louisiana-Off.

85 Grand Isle 16 Louisiana-Off.

86 Grand Isle 43 Louisiana-Off.

87 Grand Isle 47 Louisiana-Off.

88 Green Canyon 65 Louisiana-Off.

89 Main Pass 35 Louisiana-Off.

90 Main Pass 41 Louisiana-Off.

91 Main Pass 69 Louisiana-Off.

92 Main Pass 144 Louisiana-Off.

93 Main Pass 299 Louisiana-Off.

94 Main Pass 306 Louisiana-Off.

95 Main Pass 31 1 Louisiana-Off.

96 Miss. Canyon 194 Louisiana-Off.

97 Ship Shoal 1 1 3 Louisiana-Off.

98 Ship Shoal 207 Louisiana-Off.

99 Ship Shoal 208 Louisiana-Off.

100 S. Marsh Island 128 Louisiana-Off.

101 South Pass 24 Louisiana-Off.

102 South Pass 27 Louisiana-Off.

103 South Pass 61 Louisiana-Off.

104 South Pass 62 Louisiana-Off.

105 South Pass 65 Louisiana-Off.

106 South Pass 89 Louisiana-Off.

107 S. Timbalier21 Louisiana-Off.

108 West Delta 30 Louisiana-Off.

1 09 West Delta 73 Louisiana-Off.

1 1 0 West Delta 79 Louisiana-Off.

1 1 1 Avery Island Louisiana-S.

112 Bay de Chene Louisiana-S.

113 Bay St. Elaine Louisiana-S.

114 Bayou Sale Louisiana-S.

1 1 5 Black Bay W. Louisiana-S.

116 Caillou Island Louisiana-S.

117 Cote Blanche Bay W. Louisiana-S.

118 Cote Blanche Island Louisiana-S.

1919

1924

1922

1930

1932

1933

1970

1938

1940

1906

1938

1906

1938

1938

1928

1931

1917

1931

1937

1937

1949

1953

1950

1956

1964

1930

1987

1948

1956

1955

1984

1951

1957

1948

1967

1962

1969

1977

1980

1955

1967

1962

1974

1950

1954

1968

1965

1965

1969

1939

1949

1962

1966

1942

1941

1928

1941

1953

1930

1940

1948

0.732

0.516

0.789

0.449

19.779

7.529

3.777

0.975

0.077

1.743

0.885

1.054

0.619

0.939

1.024

0.665

0.712

0.687

0.351

0.665

5.311

2.002

0.689

3.296

1.809

8.655

22.706

2.659

2.884

1.412

7.133

0.450

3.841

1.959

1.614

6.903

0.979

2.860

3.213

2.019

0.510

2.1 ?u

1.405

4.850

2.402

7.914

2.188

1.440

7.290

1.643

4.779

3.803

0.844

0.611

0.331

0.222

0.337

1.214

2.882

0.318

1.315

619.9

208.9

220.9

91.1

2497.3

833.6

395.4

409.8

105.5

414.8

396.6

246.8

160.3

234.9

254.2

309.4

306.0

154.0

131.6

234.2

695.2

114.2

122.6

95.4

89.1

341.3

73.1

285.9

302.8

94.6

93.5

99.4

258.5

261.9

113.7

109.2

212.4

76.6

161.0

100.4

94.8

184.1

114.3

284.7

152.1

203.1

127.9

121.0

154.1

234.5

496.8

230.4

148.0

100.0

99.1

167.5

165.4

159.6

625.3

188.2

188.5

12.8

7.6

18.0

10.2

290.9

70.4

23.1

6.3

0.7

5.3

3.6

5.8

3.1

2.9

6.2

3.0

4.1

3.8

2.2

3.6

40.9

8.8

5.1

15.9

15.6

47.5

93.4

18.4

48.1

21.8

46.5

3.8

17.7

13.0

12.4

45.1

5.4

27.2

59.0

24.1

6.0

12.7

8.9

27.9

13.4

29.2

12.5

9.2

41.6

8.4

29.6

49.6

11.0

2.6

2.3

1.0

1.3

4.6

16.4

2.8

5.3

632.7

216.5

238.9

101.3

2788.2

904.0

418.5

416.1

106.2

420.1

400.2

252.6

163.4

237.8

260.4

312.4

310.1

157.8

133.8

237.8

736.1

123.0

127.7

111.3

104.7

388.8

166.5

304.3

350.9

116.4

140.0

103.2

276.2

274.9

126.1

154.3

217.8

103.8

220.0

124.5

100.8

196.8

123.2

312.6

165.5

232.3

140.4

130.2

195.7

242.9

526.4

280.0

159.0

102.6

101.4

168.5

166.7

164.2

641.7

191.0

193.8

17.5

14.7

22.8

22.7

14.7

9.4

6.1

6.5

8.4

3.0

4.1

5.5

5.0

3.1

6.1

4.5

5.8

5.5

6.3

5.4

7.7

4.4

7.4

4.8

8.6

5.5

4.1

6.9

16.7

15.4

6.5

8.4

4.6

6.6

7.7

6.5

5.5

9.5

18.4

11.9

11.8

5.9

6.3

5.8

5.6

3.7

5.7

6.4

5.7

5.1

6.2

13.0

13.0

4.3

6.9

4.5

3.9

3.8

5.7

8.8

4.0

16 Table 1
Field

119 Delta Farms

120 Garden Island Bay

121 Golden Meadow

122 Grand Bay

123 HackberryE.

124 HackberryW.

125 Iberia

126 Jennings

127 Lafitte

128 LakeBarre

129 Lake Washington

130 Leeville

131 Quarantine Bay

132 Romere Pass

133 Timbalier Bay onsh.

134 Venice

135 Vinton

136 Weeks Island

137 West Bay

138 White Castle

139 Caddo-Pine Island

140 Delhi

141 Haynesville

142 Homer

143 Nebo-Hemphill

144 Rodessa

145 Baxterville

146 Heidelberg

147 Tinsley

148 Cabin Creek

149 Cut Bank

150 Elk Basin

151 Pennel 

 152 Pine

153 Blinebry-Drinkard

154 Denton

155 Empire-Abo

156 Eunice-Monument

157 Grayburg-Jackson

158 Hobbs

159 Langiie-Mattix

160 Maljamar

161 Vacuum

162 Beaver Lodge

163 Bowlegs

164 Burbank

165 Cement

166 Gushing

167 Earlsboro

168 Eola-Robberson

169 Fitts

170 Glen Pool

171 Golden Trend

172 Healdton

173 Hewitt

174 Little River

175 Oklahoma City

176 Postle

177 Seminole

178 Sho-Vel-Tum

179 Sooner Trend

Location Discovery Production Cum. Production Rem. Reserves Est. Total Recovery Res./Prod. 

Year in 1997 as of 1/1/98 as of 1/1/98 as of 1/1/98 (years)

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-N.

Louisiana-N.

Louisiana-N.

Louisiana-N.

Louisiana-N.

Louisiana-N.

Mississippi

Mississippi

Mississippi

Montana

Montana

Montana

Montana

Montana

New Mexico

New Mexico

New Mexico

New Mexico

New Mexico

New Mexico

New Mexico

i^..- Mexico

New Mexico

N. Dakota

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

1944

1934

1938

1938

1927

1928

1917

1901

1935

1929

1931

1931

1937

1950

1938

1937

1910

1945

1940

1929

1905

1944

1921

1919

1940

1935

1944

1944

1939

1953

1926

1915

1955

1951

1945

1949

1957

1929

1929

1928

1935

1926

1929

1951

1927

1920

1917

1912

1926

1921

1933

1905

1945

1913

1919

1927

1928

1960

1926

1919

1965

0.271

1.107

0.320

0.559

0.317

0.398

0.235

0.137

0.633

2.095

1.694

0.313

0.888

0.301

0.795

0.200

0.172

3.011

0.903

0.227

1.899

0.033

0.630

0.286

1.551

0.211

0.937

1.996

0.338

1.214

0.459

0.444

1.905

0.757

0.959

0.519

0.556

2.387

4.059

2.949

0.944

1.535

8.015

0.988

0.071

0.672

1.077

1.037

0.087

0.374

1.820

0.413

2.366

1.279

1.618

0.089

0.418

1.489

0.125

10.800

2.714

120.3

230.7

139.0

177.4

112.7

148.8

99.9

118.2

264.7

214.8

260.2

145.9

179.9

100.9

306.6

186.1

163.4

246.3

237.1

93.5

383.6

213.5

177.6

101.4

102.8

109.1

252.2

196.0

224.8

102.2

168.2

100.1

95.5

113.7

142.2

145.2

228.3

147.4

118.5

339.4

135.1

158.6

508.5

123.5

163.7

543.7

143.1

508.6

203.5

139.9

219.6

333.9

502.3

348.7

285.7

142.5

823.3

115.9

195.0

1298.2

327.6

2.2

3.8

1.2

2.0

4.0

2.1

0.8

1.2

3.5

11.9

6.7

3.0

6.2

1.6

12.6

3.4

1.8

13.0

7.5

6.6

10.9

2.9

3.8

1.3

8.7

1.4

5.2

5.6

1.3

6.8

2.0

1.3

11.4

3.3

4.1

2.1

2.9

6.6

18.3

17.7

4.6

7.3

31.2

5.1

1.1

2.8

5.9

5.8

0.8

1.5

8.3

4.6

21.0

4.2

5.4

1.8

5.8

6.4

1.0

52.1

16.9

122.5

234.5

140.2

179.4

116.7

150.9

100.7

119.4

268.2

226.7

266.9

148.9

186.1

102.5

319.2

189.5

165.2

259.3

244.6

100.1

394.5

216.4

181.4

102.7

111.5

110.5

257.4

201.6

226.1

109.0

170.2

101.4

106.9

117.0

146.3

147.3

231.2

154.0

136.8

357.1

139.7

165.9

539.7

128.6

164.8

546.5

149.0

514.4

204.3

141.4

227.9

338.5

523.3

352.9

291.1

144.3

829.1

122.3

196.0

1350.3

344.5

8.1

3.4

3.8

3.6

12.6

5.3

3.4

8.8

5.5

5.7

4.0

9.6

7.0

5.3

15.8

17.0

10.5

4.3

8.3

29.1

5.7

87.9

6.0

4.5

5.6

6.6

5.5

2.8

3.8

5.6

4.4

2.9

6.0

4.4

4.3

4.0

5.2

2.8

4.5

6.0

4.9

4.8

3.9

5.2

15.5

4.2

5.5

5.6

9.2

4.0

4.6

11.1

8.9

3.3

3.3

20.2

13.9

4.3

8.0

4.8

6.2

17 Table 1
Field Location Discovery Production Cum. Production Rem. Reserves Est. Total Recovery Res./Prod. 

Year in 1997 as of 1/1/98 as of 1/1/98 as of 1/1/98 (years)

180 St. Louis

181 Darst Creek

182 Luling-Branyon

183 Pearsall

184 Greta

185 Lake Pasture

186 TomO'Connor

187 West Ranch

188 Anahuac

189 Barbers Hill

190 Con roe

191 Giddings

192 Goose Creek

193 Hastings E.

194 High Island

195 Hull

196 Humble

197 Magnet Withers

198 Manvel

199 Oyster Bayou

200 Raccoon Bend

201 Sour Lake

202 Thompson

203 Tomball

204 Webster

205 W. Columbia

206 Agua Dulce-Stratton

207 Borregos

208 Kelsey

209 Plymouth

210 Seeligson

211 TCB

212 White Point E.

213 Van

214 East Texas

215 Fairway

216 Hawkins

217 Neches

218 Quitman 

219Talco

220 Stephens Cnty Reg.

221 Big Lake

222 McCamey

223 Pegasus

224 Andector

225 Block 31

226 Cowden N.

227 Cowden S.-Foster-J

228 Dollarhide

229 Dune

230 Fuhrman-Mascho

231 Fullerton

232 Goldsmith

233 Hendrick

234 Howard-Glasscock

235 latan E.

236 Jordan

237 Kermit

238 Keystone

239 Mabee

240 McElroy

Oklahoma

Texas-Dist. 1

Texas-Dist. 1

Texas-Dist. 1

Texas-Dist. 2

Texas-Dist. 2

Texas-Dist. 2

Texas-Dist. 2

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 5

Texas-Dist. 6

Texas-Dist. 6

Texas-Dist. 6

Texas-Dist. 6

Texas-Dist. 6

Texas-Dist. 6

Texas-Dist. 7B

Texas-Dist. 7C

Texas-Dist. 7C

Texas-Dist. 7C

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

I. Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

1925

1929

1922

1936

1933

1953

1934

1938

1935

1916

1931

1971

1906

1934

1922

1918

1905

1936

1931

1941

1927

1902

1921

1933

1937

1917

1928

1945

1938

1925

1925

1944

1938

1928

1930

1960

1940

1953

1948

1931

1916

1923

1925

1949

1946

1945

1930

1930

1945

1938

1930

1942

1934

1926

1925

1926

1937

1928

1930

1943

1926

0.388

0.551

0.929

1.805

0.277

0.950

2.895

0.789

0.153

0.185

1.160

16.590

0.488

1.061

1.062

0.411

0.215

0.916

0.315

0.339

0.369

0.494

1.102

0.188

1.925

0.150

0.212

0.031

0.052

0.075

0.081

0.040

0.022

1.559

19.213

1.825

3.158

0.431

0.605

0.833

3?98

0.373

0.130

0.814

0.465

1.114

9.595

5.015

2.880

1.149

1.201

6.655

4.198

0.357

4.215

2.137

0.611

0.271

1.414

2.440

7.455

181.1

159.2

155.7

153.3

150.9

100.1

787.7

391.9

288.2

113.5

742.4

457.0

122.9

707.0

140.3

171.7

99.7

121.3

103.5

164.6

104.8

102.7

487.9

123.1

596.2

102.5

148.3

114.9

116.1

124.2

272.8

113.6

104.7

541.7

5271.4

210.1

865.2

110.1

129.6

284.9

172.7

133.6

126.3

143.4

186.3

238.6

598.3

560.9

219.0

199.4

117.1

412.1

799.3

256.4

447.9

165.3

135.5

116.5

325.7

108.1

540.1

1.4

3.1

3.4

29.7

1.6

3.9

15.1

5.2

1.2

0.8

4.9

66.9

1.8

3.2

3.0

2.2

1.1

5.5

1.4

1.5

1.5

7.0

5.7

1.0

9.2

2.0

1.4

0.6

0.8

1.9

0.7

0.6

0.6

8.3

110.2

12.8

20.4

1.6

2.7

6.5

15.7

1.4

0.7

3.7

2.4

7.8

50.5

28.4

17.8

6.3

3.2

35.2

26.9

1.8

20.8

12.7

3.0

1.6

5.5

13.7

36.4

182.5

162.3

159.1

183.0

152.5

104.0

802.8

397.1

289.4

114.3

747.3

523.9

124.7

710.2

143.3

173.9

100.8

126.8

104.9

166.1

106.3

109.7

493.6

124.1

605.4

104.5

149.7

115.5

116.9

126.1

273.5

114.2

105.3

550.0

5381.6

222.9

885.6

111.7

132.3

291.4

188.4

135.0

127.0

147.1

188.7

246.4

648.8

589.3

236.8

205.7

120.3

447.3

826.2

258.2

468.7

178.0

138.5

118.1

331.2

121.8

576.5

3.6

5.6

3.7

16.5

5.8

4.1

5.2

6.6

7.8

4.3

4.2

4.0

3.7

3.0

2.8

5.4

5.1

6.0

4.4

4.4

4.1

14.2

5.2

5.3

4.8

13.3

6.6

19.4

15.4

25.3

8.6

15.0

27.3

5.3

5.7

7.0

6.5

3.7

4.5

7.8

4.8

3.8

5.4

4.5

5.2

7.0

5.3

5.7

6.2

5.5

2.7

5.3

6.4

5.0

4.9

5.9

4.9

5.9

3.9

5.6

4.9

18 Table 1
Field

241 Means

242 Midland Farms

243 Penwell

244 Sand Hills

245 Shatter Lake

246 Spraberry Trend

247 TXL

248 Waddell

249 Ward S.

250 Ward Estes N.

251 Westbrook

252 Yates

253 Adair

254 Anton-lrish

255 Cedar Lake

256 Cogdell

257 Diamond M

258 G'arza

259 Jo-Mill

260 Kelly-Snyder

261 Levelland

262 Prentice

263 Robertson N.

264 Salt Creek

265 Seminole

266 Sharon Ridge

267 Slaughter

268 Wasson

269 Welch

270 Archer Cnty Reg.

271 Cooke Cnty Reg.

272 K-M-A

273 Walnut Bend

274 Wichita Cnty Reg.

275 Wilbarger Cnty Reg.

276 Young Cnty Reg.

277 Panhandle

278 Altamont

279 Bluebell

280 Greater Aneth

281 Byron

282 Elk Basin

283 Frannie

284 Garland

285 Grass Creek

286 Hamilton Dome

287 Hartzog Draw

288 Lance Creek

289 Little Buffalo Basin

290 Lost Soldier

291 Oregon Basin

292 Salt Creek

293 Wertz

Location Discovery Production Cum. Production Rem. Reserves Est. Total Recovery Res./Prod. 

. Year in 1997 as of 1/1/98 as of 1/1/98 as of 1/1/98 (years)

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 9

Texas-Dist. 9

Texas-Dist. 9

Texas-Dist. 9

Texas-Dist. 9

Texas-Dist. 9

Texas-Dist. 9

Texas-Dist. 1 0

Utah

Utah

Utah

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

SUMS

1934

1944

1926

1931

1947

1951

1944

1927

1938

1929

1920

1926

1947

1944

1939

1949

1948

1926

1953

1948

1938

1951

1956

1950

1936

1923

1936

1936

1942

1911

1926

1931

1938

1910

1915

1917

1921

1955

1949

1956

1918

1915

1928

1906

1914

1918

1976

1918

1914

1916

1912

1889

1921

4.213

1.488

1.585

2.210

1.415

23.414

2.295

1.055

0.356

2.405

1.278

20.310

0.822

1.527

2.695

0.491

0.982

2.075

2.395

3.145

11.080

3.105

5.102

9.191

11.950

1.502

15.503

27.410

2.351

0.942

0.687

0.833

0.369

1.855

0.411

0.870

5.125

1.613

2.772

5.874

0.627

1.805

0.285

2.022

1.450

1.778

2.111

0.125

0.797

2.457

4.431

2.159

0.509

1330.916

275.6

261.0

122.4

268.0

106.2

816.0

276.9

106.8

109.1

391.1

103.0

1356.1

115.7

196.4

96.4

299.7

251.7

127.2

147.7

1295.5

615.7

198.6

113.4

331.5

656.3

100.6

1177.9

1964.1

167.7

189.8

107.6

147.6

127.1

354.0

150.4

107.4

1475.8

112.2

140.9

405.0

127.4

452.1

120.3

182.9

201.4

249.5

96.5

109.1

131.3

237.2

441.8

658.6

113.4

101758.7

25.3

7.6

7.8

13.0

4.9

95.9

11.2

3.6

1.5

23.5

6.6

598.4

2.4

10.1

15.3

3.7

6.0

9.1

11.4

54.5

48.6

24.5

28.9

46.4

57.5

10.6

77.9

122.5

20.1

5.4

3.2

2.6

1.9

9.6

2.3

2.4

31.1

15.9

15.9

25.0

2.4

12.0

1.3

7.7

5.6

5.8

12.1

0.9

3.0

19.1

19.6

17.5

8.7

11303.9

300.9

268.6

130.2

281.0

111.1

911.9

288.1

110.4

110.6

414.6

109.6

1954.5

118.1

206.5

111.7

303.4

257.7

136.3

159.1

1350.0

664.3

223.1

142.3

377.9

713.8

111.2

1255.8

2086.6

187.8

195.2

110.8

150.2

129.0

363.6

152.7

109.8

1506.9

128.1

156.8

430.0

129.8

464.1

121.6

190.6

207.0

255.3

108.6

110.0

134.3

256.3

461.4

676.1

122.1

113062.6

6.0

5.1

4.9

5.9

3.5

4.1

4.9

3.4

4.2

9.8

5.2

29.5

2.9

6.6

5.7

7.5

6.1

4.4

4.8

17.3

4.4

7.9

5.7

5.0

4.8

7.1

5.0

4.5

8.5

5.7

4.7

3.1

5.1

5.2

5.6

2.8

6.1

9.9

5.7

4.3

3.8

6.6

4.6

3.8

3.9

3.3

5.7

7.2

3.8

7.8

4.4

8.1

17.1

8.3

(ave)

19 Table 1
Table 2. Giant U.S. oil fields of Table 1 for which production and reserves as of 1/1/90 are available. [Data as of 1/1/98 are repeat

1/1/90 are from International Petroleum Encyclopedia (1990). Production and reserves are in mmbo. Estimated total recovery = cumulative produc

Field

1 Citronelle

2 Endicott

3 Granite Point

4 Kuparuk River

5 Lisburne

6 McArthur River

7 Mid. Ground Shoal

8 Prudhoe Bay

9 Swanson River

10 Smackover

11 BelridgeS.

12 Buena Vista

13 Coalinga

14 Coalinga Nose

15 Coles Levee N.

16 Cuyama S.

17 Cymric

18 Edison

19 Elk Hills

20 Fruitvale

21 Greeley

22 Kern Front

23 Kern River

24 Kettleman N. Dome

25 Lost Hills

26 Midway-Sunset

27 Mount Poso

28 Rio Bravo

29 Yowlumne

30 Carpinteria

31 Cat Canyon E.. W.

32 Dos Cuadras

33 Hondo

34 Orcutt

35 Rincon

36 San Ardo

37 Santa Maria Valley

38 South Mountain

39 Ventura

40 Beta

Location Discovery Cum. Production Rem. Reserves Est. Total Recovery Cum. Production Rem. Reserves Es

Year as of 1/1/90 as of 1/1/90 as of 1/1/90 as of 1/1/98 as of 1/1/98 as 

Cal.-San 

Arkansas

Alaska

Alaska

Alaska

Alaska

Alaska

Alaska

Alaska

Alaska

Alabama

Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-San Joaq.

Cal.-L.A. 

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Cal.-Coastal

Basin

1966

1974

1937

1926

1894

1910

1928

1899

1912

1936

1928

1911

1928

1909

1949

1938

1938

1890

1909

1911

1922

1957

1968

1962

1965

1967

1969

1965

1978

1955

1976

1919

1916

1934

1947

1927

1901

1969

1969

1908

149.6

82.1

616.1

111.9

49.4

158.6

535.8

6733.2

174.5

112.8

116.1

927.7

135.7

209.1

218.7

160.9

499.8

764.1

648.8

737.3

559.7

211.3

1253.0

183.9

456.8

1938.8

116.2

269.5

90.3

87.4

216.9

290.4

99.5

901.5

146.7

199.6

411.9

149.9

166.7

46.0

5.2

293.0

17.0

161.0

885.0

40.0

8.0

3185.0

8.0

8.0

375.1

36.7

151.0

6.5

2.3

8.3

31.4

85.2

545.5

13.2

1.6

53.8

694.5

1.1

66.7

314.4

73.1

1.2

50.0

44.8

27.1

21.0

102.4

9.4

13.7

119.3

90.2

11.3

38.9

168.3

128.9

375.1

154.8

1501.1

166.6

575.8

210.4

9918.2

567.7

219.3

1112.4

167.1

294.3

225.2

163.2

508.1

915.1

685.5

1473.2

228.3

114.4

129.3

1947.5

250.6

457.9

2253.2

214.3

991.7

158.0

238.5

531.2

163.6

176.1

201.9

266.9

335.2

117.4

108.4

117.4

342.6

130.0

358.0

159.4

1484.0

178.6

586.0

119.0

9507.0

574.4

224.4

1108.6

141.8

294.2

221.5

163.1

503.9

849.3

659.2

1119.3

193.3

114.4

120.2

1618.8

266.2

458.0

2360.1

106.2

116.6

291.5

99.0

945.3

152.4

204.2

447.2

156.4

172.5

157.8

241.8

298.0

73.0

4.4

170.0

16.0

1111.0

12.0

44.0

32.0

3042.0

11.0

4.7

272.3

57.1

18.5

3.5

1.6

4.5

68.6

4.6

288.6

0.8

5.9

23.6

329.0

2.3

51.9

332.7

30.4

0.3

11.0

9.7

15.0

22.0

121.4

3.6

5.5

14.4

82.8

4.6

66.8

140.5

20 
Field

41 Beverly Hills

42 Brea-Olinda

43 Coyote E.

44 Dominguez

45 Huntington Beach

46 Inglewood

47 Long Beach

48 Montebello

49 Richfield

50 Santa Fe Springs

51 Seal Beach

52 Torrance

53 Wilmington

54 Rangely

55 Jay

56 Clay City

57 Lawrence

58 Louden

59 Main

60 New Harmony

61 Salem

62 Bemis-Shutts

63 Chase-Silica

64 El Dorado

65 Hall-Gurney

66 Trapp

67 Bay Marchand 2

68 Eugene Island 330

69 Grand Isle 16

70 Grand Isle 43

71 Main Pass 41

72 Main Pass 306

73 Miss. Canyon 194

74 Ship Shoal 207

75 Ship Shoal 208

76 S. Marsh Island 128

77 South Pass 27

78 South Pass 61

79 South Pass 62

80 South Pass 65

81 S. Timbalier 21

82 West Delta 30

83 West Delta 73

Location Discovery Cum. Production Rem. Reserves Est. Total Recovery Cum. Production Rem. Reserves Es

Year as of 1/1/90 as of 1/1/90 as of 1/1/90 as of 1/1/98 as of 1/1/98 as 

Cal.-L.A. Basin

Cal.-LA Basin

Cal.-LA Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Cal.-L.A. Basin

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Louisiana-Off.

Kansas

Kansas

Kansas

Kansas

Kansas

Illinois

Illinois

Illinois

Illinois

Illinois

Illinois

Florida

Colorado

1956

1948

1930

1949

1937

1931

1917

1931

1928

1938

1938

1906

1938

1906

1938

1970

1933

1932

1922

1924

1919

1919

1917

1921

1924

1920

1923

1909

1880

1900

1962

1949

1939

1965

1965

1968

1954

1974

1962

1967

1980

1969

1957

269.8

109.2

386.1

124.4

1071.5

213.6

203.9

614.0

190.6

193.0

912.0

348.2

2318.9

121.4

203.6

240.8

277.4

267.3

277.7

606.3

227.4

147.1

299.4

303.0

245.2

227.4

154.5

235.3

389.5

397.3

396.1

365.4

751.7

88.6

163.7

81.0

192.8

451.8

218.3

104.8

108.6

160.4

131.8

12.7

52.6

40.5

6.9

15.0

51.4

66.9

9.7

26.0

8.1

34.3

13.3

469.0

51.2

35.0

3.6

3.1

1.8

3.6

3.4

3.5

3.8

5.0

2.8

5.0

6.0

82.2

41.7

45.1

85.3

79.4

40.0

68.9

20.0

61.7

37.2

71.8

76.6

20.4

80.5

82.0

47.3

50.0

276.7

121.9

438.7

164.9

1138.4

247.9

217.2

622.1

216.6

202.7

927.0

399.6

2787.9

275.0

493.5

263.4

190.1

188.0

200.4

200.7

101.0

225.4

125.8

193.2

280.2

261.2

357.9

349.3

325.0

656.3

231.0

150.2

301.2

306.6

248.6

230.9

158.3

240.3

392.3

402.3

402.1

416.6

786.7

273.7

112.7

398.4

135.5

1099.5

220.9

208.9

619.9

197.6

195.7

926.0

365.6

2497.3

161.0

212.4

258.5

302.8

285.9

341.3

695.2

234.2

154.0

306.0

309.4

254.2

234.9

160.3

246.8

396.6

414.8

409.8

395.4

833.6

94.8

230.4

496.8

234.5

121.0

127.9

203.1

152.1

114.3

184.1

40.3

12.1

3.1

9.1

18.6

26.7

38.6

5.3

6.3

12.8

7.6

18.0

290.9

23.1

70.4

3.6

3.8

4.1

3.0

6.2

2.9

3.1

5.8

3.6

5.3

6.3

17.7

48.1

18.4

47.5

40.9

5.4

59.0

6.0

12.7

8.9

12.5

29.2

13.4

8.4

9.2

49.6

29.6

21 
Field

84 Bay de Chene

85 Bay St. Elaine

86 Bayou Sale

87 Black Bay W.

88 Caillou Island

89 Cote Blanche Bay W.

90 Delta Farms

91 Garden Island Bay

92 Golden Meadow

93 Grand Bay

94 Hackberry E.

95 Hackberry W.

96 Jennings

97 Lafffle

98 Lake Barre

99 Lake Washington

100 Leeville

101 Quarantine Bay

102 Timbalier Bay onsh.

103 Venice

104 Vinton

105 Weeks Island

106 West Bay

107 Caddo-Pine Island

108 Delhi

109 Haynesville

110 Homer

111 Rodessa

112 Baxterville

113 Heidelberg

114 Tinsley

115 Cut Bank

116 Pine

117 Denton

118 Empire-Abo

119 Eunice-Monument

120 Hobbs

121 Maljamar

122 Vacuum

123 Beaver Lodge

124 Burbank

125 Eola-Robberson

126 Fitts

Location Discovery Cum. Production Rem. Reserves Est. Total Recovery Cum. Production Rem. Reserves Es

Year as of 1/1/90 as of 1/1/90 as of 1/1/90 as of 1/1/98 as of 1/1/98 as 

New 

Montana

Montana

Mississippi

Mississippi

Mississippi

Louisiana-N.

Louisiana-N.

Louisiana-N.

Louisiana-N.

Louisiana-N.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Louisiana-S.

Mexico

New Mexico

New Mexico

New Mexico

New Mexico

New Mexico

N. Dakota

Oklahoma

Oklahoma

Oklahoma

1933

1921

1920

1951

1929

1926

1928

1929

1957

1949

1951

1926

1939

1944

1944

1935

1919

1921

1944

1905

1940

1945

1910

1937

1938

1937

1931

1931

1929

1935

1901

1928

1927

1938

1938

1934

1944

1940

1930

1953

1941

1928

1941 96.8

169.1

212.3

364.2

229.5

227.0

161.3

182.8

297.2

173.4

142.2

245.0

205.1

256.6

116.6

143.4

109.5

170.9

136.1

222.4

115.7

183.0

604.7

147.0

162.1

165.3

98.8

202.4

134.0

537.6

113.0

442.8

146.8

304.4

128.3

221.6

139.6

106.4

163.1

220.3

177.2

241.4

106.4

24.8

17.5

8.3

2.6

45.0

71.5

6.7

30.8

8.2

0.5

5.0

7.1

3.4

3.6

13.7

19.0

6.7

23.2

15.0

0.5

6.7

34.1

10.0

15.1

20.3

2.5

9.7

8.2

1.1

1.5

1.5

36.4

2.1

4.4

48.4

8.0

20.0

3.3

15.2

40.0

9.5

7.4

7.5

150.1

324.4

136.3

270.0

141.7

110.8

199.5

222.8

186.9

249.6

107.5

100.3

170.6

246.4

374.2

244.6

247.3

161.8

189.5

320.4

188.4

148.9

258.7

224.1

264.8

117.1

148.4

116.6

174.3

139.7

253.2

122.4

228.0

676.2

155.3

164.7

190.1

114.3

211.9

141.4

545.1

128.2

482.8

99.1

158.6

339.4

147.4

228.3

145.2

113.7

168.2

224.8

196.0

252.2

109.1

101.4

177.6

213.5

383.6

237.1

246.3

163.4

186.1

306.6

179.9

145.9

260.2

214.8

264.7

118.2

148.8

112.7

177.4

139.0

230.7

120.3

188.2

625.3

159.6

165.4

167.5

219.6

139.9

543.7

123.5

508.5

4.6

1.3

1.0

2.3

16.4

3.5

1.2

2.1

4.0

2.0

1.2

3.8

2.2

2.8

11.9

6.2

3.0

6.7

12.6

1.8

3.4

13.0

7.5

10.9

6.6

2.9

2.1

3.3

2.0

1.3

5.6

5.2

1.4

1.3

3.8

2.9

17.7

7.3

31.2

8.3

1.5

2.8

5.1

22 
Field

127 Glen Pool

128 Golden Trend

129 Healdton

130 Hewitt

131 Oklahoma City

132 Postle

133 Sho-Vel-Tum

134 Sooner Trend

135 Greta

136 Lake Pasture

137 TomO'Connor

138 West Ranch

139 Anahuac

140 Conroe

141 Giddings

142 Magnet Withers

143 Oyster Bayou

144 Thompson

145 Tomball

146 Webster

147 Agua Dulce-Stratton

148 Borregos

149 Kelsey

150 Plymouth

151 Seeligson

152 TCB

153 White Point E.

154 Van

155 East Texas

156 Fairway

157 Hawkins

158 Neches

159 Quitman

160 Big Lake

161 Andector

162 Block 31

163 Cowden N.

164 Cowden S.-Foster-J.

165 Dollarhide

166 Dune

167 Fullerton

168 Goldsmith

169 Howard-Glasscock

Location Discovery Cum. Production Rem. Reserves Est. Total Recovery Cum. Production Rem. Reserves Es

Year as of 1/1/90 as of 1/1/90 as of 1/1/90 as of 1/1/98 as of 1/1/98 as 

Texas-Dist. 

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

Oklahoma

2

Texas-Dist. 2

Texas-Dist. 2

Texas-Dist. 2

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 3

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 4

Texas-Dist. 5

Texas-Dist. 6

Texas-Dist. 6

Texas-Dist. 6

Texas-Dist. 6

Texas-Dist. 6

Texas-Dist. 7C

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8 1925

1934

1942

1938

1945

1930

1930

1945

1946

1923

1948

1953

1940

1960

1930

1928

1938

1944

1925

1925

1938

1945

1928

1937

1933

1921

1941

1936

1971

1931

1935

1938

1934

1953

1933

1965

1919

1960

1928

1919

1913

1945

1905

107.5

817.1

270.4

336.4

477.8

328.8

1184.3

148.1

299.4

89.5

524.7

104.1

113.0

271.7

123.1

115.1

114.2

147.0

577.2

121.4

476.1

160.9

112.4

270.8

730.0

285.6

382.2

754.3

5044.0

409.1

762.0

355.4

185.3

196.3

509.5

501.6

223.1

182.5

130.4

122.6

105.0

828.4

194.8

4.1

25.0

7.8

12.0

5.0

48.6

10.9

12.0

16.1

51.0

13.8

8.5

31.0

14.4

140.3

3.5

23.8

17.4

9.6

36.0

20.0

24.4

16.0

3.1

52.2

55.3

6.2

12.2

953.5

35.6

15.7

5.9

3.0

7.2

5.1

31.3

36.5

12.0

8.9

21.4

27.3

14.8

16.4

121.3

822.1

282.4

344.2

502.8

332.9

1235.3

536.9

110.3

165.2

327.0

126.2

151.1

134.2

171.4

593.2

131.0

499.9

178.3

115.9

411.1

761.0

300.0

390.7

802.9

100.4

160.1

315.5

5997.5

430.5

789.3

370.2

201.7

205.2

540.8

538.1

235.1

188.4

133.4

129.8

110.1

864.0

210.5

115.9

823.3

285.7

348.7

502.3

333.9

1298.2

541.7

104.7

113.6

272.8

124.2

116.1

114.9

148.3

596.2

123.1

487.9

164.6

121.3

457.0

742.4

288.2

391.9

787.7

100.1

150.9

327.6

5271.4

447.9

799.3

412.1

199.4

219.0

560.9

598.3

238.6

186.3

133.6

129.6

110.1

865.2

210.1

4.6

21.0

6.4

5.8

5.4

4.2

16.9

52.1

3.9

1.6

15.1

4.9

1.2

5.2

66.9

8.3

0.6

0.6

0.7

1.9

0.8

0.6

1.4

9.2

1.0

5.7

1.5

5.5

110.2

20.4

12.8

7.8

2.4

1.4

2.7

1.6

17.8

28.4

50.5

6.3

20.8

26.9

35.2

23 
Field

170 latan E.

171 Jordan

172 Keystone

173 McElroy

174 Means

175 Midland Farms

176 Sandhills

177 Spraberry Trend

178 TXL

179 Waddell

180 Ward EstesN.

181 Westbrook

182 Yates

183 Anton-lrish

184 Cogdell

185 Diamond M

186 Kelly-Snyder

187 Levelland

188 Prentice

189 Salt Creek

190 Seminole

191 Slaughter

192 Wasson

193 Welch

194 Panhandle

195 Altamont

196 Greater Aneth

197 Byron

198 Elk Basin

199 Frannie

200 Garland

201 Grass Creek

202 Hamilton Dome

203 Hartzog Draw

204 Lance Creek

205 Little Buffalo Basin

206 Lost Soldier

207 Oregon Basin

208 Salt Creek

209 Wertz

Location Discovery Cum. Production Rem. Reserves Est. Total Recovery Cum. Production Rem. Reserves Es

Year as of 1/1/90 as of 1/1/90 as of 1/1/90 as of 1/1/98 as of 1/1/98 as 

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 8A

Texas-Dist. 10

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Wyoming

Utah

Utah

1926 

1920

1929

1927

1944

1951

1931

1944

1934

1926

1930

1937

1926

,

1949 

1944

: i

1948 ;

1921

1889

1912

1916

1914

1918

1976

1918

1914

1906

1928

1915

1918

1956

1955

1921

1942

1936

1936

1936

1950

1951

1938

1948

367.0

101.3

265.0

672.1

250.5

245.6

234.4

472.2

314.7

129.9

145.8

90.0

1199.3

240.8

293.5

179.0

1253.5

541.1

257.8

166.3

500.0

1738.1

1047.7

147.2

1429.3

91.8

232.8

187.5

165.4

116.9

434.8

121.6

359.6

72.3

103.8

634.3

396.4

210.7

121.2

107.9

7.8

1.6

9.2

39.0

19.3

15.0

14.2

50.2

3.2

5.0

14.0

73.6

755.2

14.0

11.0

60.0

32.0

25.0

25.0

15.0

34.4

96.5

14.7

39.9

21.1

228.8

25.0

6.7

22.8

6.0

6.6

6.4

4.1

277.9

5.8

9.0

0.3

11.0

20.2

25.0

104.0

440.6

104.5

270.0

711.1

269.8

260.6

248.6

522.4

322.5

131.5

155.0

1954.5

255.5

333.4

200.1

1350.0

566.1

282.8

181.3

534.4

1798.1

1079.7

158.2

1443.3

114.8

654.5

421.4

216.5

130.2

108.2

350.2

238.8

194.1

171.8

121.0

457.6

128.3

384.6

320.6

103.0

391.1

106.8

276.9

816.0

268.0

261.0

275.6

540.1

325.7

135.5

165.3

1356.1

251.7

299.7

196.4

1295.5

656.3

331.5

198.6

615.7

1964.1

1177.9

167.7

1475.8

249.5

201.4

182.9

120.3

452.1

127.4

405.0

112.2

96.5

113.4

658.6

441.8

237.2

131.3

109.1

12.7

5.5

3.0

25.3

36.4

7.6

11.2

95.9

13.0

3.6

23.5

6.6

598.4

10.1

6.0

3.7

77.9

57.5

46.4

24.5

48.6

54.5

122.5

25.0

15.9

31.1

20.1

2.4

12.0

5.8

5.6

7.7

1.3

12.1

3.0

0.9

17.5

19.6

19.1

8.7

SUMS 79284.5 14244.8 93529.3 89599.5 9825.8 

24 
Table 3. Giant U.S. oil fields of Table 1 having significant remaining potential (those that account for 80% of 

annual production or 80% of remaining reserves). [Data are sorted by rank with respect to annual production. 

Rank with respect to remaining reserves is also shown. Production and reserves are in mmbo.]

ID No. 

Table 1

Field Rank- Rank- Production Rem. Reserves 

production rem. reserves in 1997 as of 1/1/98

10 Prudhoe Bay

4 Kuparuk River 

30 Midway-Sunset

9 Point Mclntyre 

27 Kern River 

15 BelridgeS. 

268 Wasson 

246 Spraberry Trend 

84 Garden Banks 426

2 Endicott 

23 Elk Hills 

252 Yates 

62 Wilmington 

214 East Texas

8 Milne Point 

191 Giddings 

38 Hondo 

267 Slaughter 

40 Pescado

21 Cymric 

265 Seminole

29 Lost Hills 

261 Levelland 

178 Sho-Vel-Tum

41 Point Arguello

17 Coalinga 

226 Cowden N. 

264 Salt Creek

83 Eugene Island 330 

161 Vacuum 

103 South Pass 61

63 Rangely 

240 McElroy 

106 South Pass 89

88 Green Canyon 65

93 Main Pass 299 

231 Fullerton 

oon o-oater Aneth

78 Bay Marchand 2

46 Ventura 

277 Panhandle 

263 Robertson N. 

227 Cowden S.-Foster-J.

6 McArthur River 

101 South Pass 24 

108 West Delta 30

43 San Ardo 

291 Oregon Basin 

234 Howard-Glasscock 

241 Means 

232 Goldsmith 

157 Grayburg-Jackson

90 Main Pass 41 

109 West Delta 73

64 Jay

96 Miss. Canyon 194 

260 Kelly-Snyder

47 Beta

86 Grand Isle 43

SUMS

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

59

61

64

68

1

2

4

9

5

8

14

17

18

11

7

3

6

16

10

23

15

20

31

22

26

30

34

29

12

27

32

38

36

48

53

21

45

41

37

39

46

62

42

24

49

54

56

40

57

52

19

74

71

61

59

79

82

33

67

25

28

13

35

251.000

96.000

60.692

59.000

48.746

42.848

27.410

23.414

22.706

21.000

20.529

20.310

19.779

19.213

19.000

16.590

16.491

15.503

15.161

13.847

11.950

11.520

11.080

10.800

10.563

9.732

9.595

9.191

8.655

8.015

7.914

7.529

7.455

7.290

7.133

6.903

6.655

5.874

5.311

5.191

5.125

5.102

5.015

5.000

4.850

4.779

4.629

4.431

4.215

4.213

4.198

4.059

3.841

3.803

3.777

3.213

3.145

3.009

2.884

1076.883

3042.0

1111.0

332.7

241.0

329.0

272.3

122.5

95.9

93.4

170.0

288.6

598.4

290.9

110.2

223.0

66.9

121.4

77.9

51.7

68.6

57.5

51.9

48.6

52.1

160.7

57.1

50.5

46.4

47.5

31.2

29.2

70.4

36.4

41.6

46.5

45.1

35.2

25.0

40.9

66.8

31.1

28.9

28.4

44.0

27.9

29.6

82.8

19.6

20.8

25.3

26.9

18.3

17.7

49.6

23.1

59.0

54.5

140.5

48.1

9524.1

25 Table 3